TY - RPRT A1 - Kalinka, Gerhard T1 - Ein Beitrag zur Kristallisation gefüllter und ungefüllter Thermoplaste N2 - Hier wird der chronologische Verlauf der Kristallisation verfolgt. Sie beginnt mit den thermodynamischen Grundlagen der Keimbildung und des Wachstums, stellt anschließend Wachstumsformen in der Frühlphase der Kristallisation vor und behandelt schließlich die spärolithische Hauptkristallisation sowie die sogenannte Nachkristallisation. T3 - BAM Forschungsberichtreihe - 208 PY - 1995 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:b43-2420 SN - 978-3-89429-557-0 SN - 0938-5533 VL - 208 SP - 1 EP - 64 PB - Wirtschaftsverlag NW CY - Bremerhaven AN - OPUS4-242 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kalinka, Gerhard A1 - Boro, I. A1 - Hinrichsen, G. A1 - Hampe, Andreas T1 - Untersuchungs des Ermüdungsverhaltens glasfaserverstärkter Thermoplaste mittels Schwingungsmessungen T2 - Zweites Werkstoffsymposium Neue Verbundwerkstoffe CY - Regensburg, Germany DA - 1990-10-05 PY - 1990 AN - OPUS4-12127 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kalinka, Gerhard A1 - Leistner, André A1 - Hampe, Andreas T1 - Characterization of the fibre-matrix interface with the indentation technique T2 - 6th International Conference on Composite Interfaces (ICCI-VI) CY - Zichron Ya'akov, Israel DA - 1996-05-05 PY - 1996 AN - OPUS4-12086 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kalinka, Gerhard A1 - Leistner, André A1 - Schulz, Eckhard T1 - Friction Measurement on fiber reinforced polymer composites with using the indentation technique T2 - European Conference on Composite Materials ECCM-8 CY - Naples, Italy DA - 1998-06-03 PY - 1998 AN - OPUS4-12089 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kalinka, Gerhard T1 - Energy orientated data interpretation of pull-out and push-out test for the investigation of residual stresses T2 - Interface Phenomena in Composite Materials CY - Berlin, Germany DA - 1999-09-08 PY - 1999 AN - OPUS4-12093 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kalinka, Gerhard T1 - Ermüdungsverhalten von faserverstärkten Thermoplasten T2 - Präsentationsveranstaltung des Berliner Verbands für Polymerforschung CY - Berlin, Germany DA - 1989-05-18 PY - 1989 AN - OPUS4-12094 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kalinka, Gerhard A1 - Hampe, Andreas T1 - Charakterisierung des Interface-Versagens in Faserverbundwerkstoffen mit mikromechanischen Testmethoden T2 - 5. Berliner Polymeren-Tage CY - Potsdam, Germany DA - 1994-10-05 PY - 1994 AN - OPUS4-12096 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kalinka, Gerhard A1 - Hampe, Andreas T1 - Charakterisierung des Faser-Matrix-Interface mit dem Indentation-Test T2 - Verbundwerkstoffe und Werkstoffverbunde CY - Bayreuth, Germany DA - 1995-10-24 PY - 1995 AN - OPUS4-12097 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kalinka, Gerhard A1 - Hampe, Andreas T1 - Energy Dissipation of the Fibre-Matrix Debonding Process Investigated with the Indentation Technique T2 - Interfacial Phenomena of Composite Materials IPCM'95 CY - Eindhoven, Netherlands DA - 1995-09-11 PY - 1995 AN - OPUS4-12098 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kalinka, Gerhard A1 - Schulz, Eckhard T1 - Der Einfluss der Transkristallisation auf die scheinbare Scherfestigkeit von kohlefaserverstärktem Polyphenylensulid (PPS) mit der Einzelfaserauszugsmethode T2 - Verbundwerkstoffe und Werkstoffverbunde CY - Bayreuth, Germany DA - 1995-10-24 PY - 1995 AN - OPUS4-12099 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kalinka, Gerhard A1 - Hampe, Andreas A1 - Schulz, Eckhard T1 - Energy based characterization of the fiber-matrix interface unsing the pull-out and the push-out test T2 - Micro Mat '97 CY - Berlin, Germany DA - 1997-04-16 PY - 1997 AN - OPUS4-12100 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kalinka, Gerhard A1 - Hampe, Andreas T1 - Energy based characterization of the fiber-matrix interface unsing the pull-out and the push-out test T2 - Interfacial Phenomena of Composite Materials IPCM'97 CY - Eger, Hungary DA - 1997-09-01 PY - 1997 AN - OPUS4-12101 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kalinka, Gerhard A1 - Hampe, Andreas T1 - Interfacial properties and their determination by using stiffness optimized test devices T2 - Workshop on Micro-Mechanics Measurement Technologies, NIST CY - Gaithersburg, MD, USA DA - 1997-05-28 PY - 1997 AN - OPUS4-12103 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kalinka, Gerhard A1 - Schulz, Eckhard A1 - Hampe, Andreas T1 - Untersuchung der Phasenhaftung in Verbundwerkstoffen mit dem Faser-Eindrückversuch T2 - Wissensbörse - Präparationstechnik und Analytik CY - Berlin, Germany DA - 19.02.1998 PY - 1998 AN - OPUS4-12104 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kalinka, Gerhard A1 - Schulz, Eckhard T1 - Influence of water on the fibre-matrix adhesion investigated by the single fiber indentation method T2 - 4th European Conference on Adhesion, 1st World Congress on Adhesion an Related Phenomena CY - Garmisch-Partenkirchen, Germany DA - 1998-09-06 PY - 1998 AN - OPUS4-12105 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kalinka, Gerhard T1 - Testing the fibre-matrix adhesion in fiber reinforced polymers using the single fibre push-out method T2 - 8th European Conference on Applications of Surface and Interface Analysis (ECASIA 99) CY - Seville, Spain DA - 1999-10-04 PY - 1999 AN - OPUS4-12106 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kalinka, Gerhard A1 - Schulz, Eckhard T1 - Monitoring the interface crack propagation with micromechanical test devices T2 - Interfacial Phenomena in Composite Materials CY - Berlin, Germany DA - 2001-01-28 PY - 2001 AN - OPUS4-12107 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kalinka, Gerhard A1 - Schulz, Eckhard T1 - Energy Quantification of Interface Debonding Processes Using 'Stiff' Test Devices T2 - Gordon Conference on Composite Materials CY - San Buenaventura, CA, USA DA - 2001-01-28 PY - 2001 AN - OPUS4-12108 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kalinka, Gerhard T1 - Untersuchung des Faser-Matrix-Interface in Verbundwerkstoffen mit Einzelfaserversuchen T2 - Technische Universität Clausthal, Institut für Polymerwerkstoffe und Kunststofftechnik - Eingeladener Vortrag CY - Clausthal-Zellerfeld, Germany DA - 2006-04-26 PY - 2006 AN - OPUS4-13803 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kalinka, Gerhard T1 - Testing the interface shear strength of carbon fibre reinforced composites T2 - Polydays 2006 CY - Berlin, Germany DA - 2006-10-04 PY - 2006 AN - OPUS4-13804 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Kalinka, Gerhard A1 - Leistner, André A1 - Hampe, Andreas T1 - Characterisation of the fibre/matrix interface in reinforced polymers by the push-in technique N2 - The push-in test is the only micromechanical test method that is not restricted to artificial fibre/matrix arrangements, but allows the in situ characterisation of interfaces in composites fabricated and stressed under realistic conditions. However, with the application of this method to reinforced polymers some problems arise both in the mathematical model for evaluating test data and in the practical performance of the test. Because in some cases the deformation of the relatively compliant polymeric matrices cannot be neglected, an extension of the existing model is required. For this purpose, the elastic energy of the material around the debonded part of the fibre is estimated and included in the energy-balance analysis. Because of the small diameter of the fibres usually used for reinforcing polymers, a test apparatus was designed which ensures a high positioning accuracy in the xy plane as well as in the z direction. In order to minimise thermal and mechanical influences, the microscope for fibre selection and the force sensor/indenter are directly connected together and the apparatus is designed to be stiff in all components. A solid-state bending joint guarantees very precise control of the axial movement. Three examples of the application of this easy-to-handle and low-cost test apparatus are presented briefly in the paper: assess fibre/matrix combinations, measures to improve the interfacial adhesion and the influence of water on the interface. KW - Interface KW - Test method KW - Characterisation KW - Indentation KW - Push-in PY - 1997 SN - 0266-3538 VL - 57 IS - 8 SP - 845 EP - 851 PB - Elsevier CY - Barking AN - OPUS4-12011 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Thomason, J.L. A1 - Kalinka, Gerhard T1 - A technique for the measurement of reinforcement fibre tensile strength at sub-millimetre gauge lengths N2 - The strength of composite reinforcement fibres is normally measured on samples of much greater length than the actual residual fibre lengths found in many composite materials. This is due to a number of limitations of the standard techniques which are employed. We present a description of a technique which enables values for the tensile strength of composite reinforcement fibres at short gauge lengths to be obtained. The technique is based on an adaptation of a micro-mechanical test apparatus for fibre pullout measurements. Data is presented which was obtained at gauge lengths of 180–380 µm on E-glass and S-2 glass® fibres taken from different chopped reinforcement products. The technique can be used at gauge lengths as short as 20 µm. The data indicates that the values of average fibre strength in these products are significantly below the pristine glass strength values. KW - Verstärkungsfaser KW - Kurzfaser KW - Längenabhängigkeit KW - Glass fibres KW - Strength KW - Mechanical testing KW - Festigkeit KW - Faser PY - 2001 U6 - https://doi.org/10.1016/S1359-835X(00)00122-6 SN - 1359-835X VL - 32 IS - 1 SP - 85 EP - 90 PB - Elsevier CY - Oxford AN - OPUS4-12012 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Hinrichs, V. A1 - Kalinka, Gerhard A1 - Hinrichsen, G. T1 - An Avrami-based model for the description of the secondary crystallization of polymers N2 - A mathematical model for the description of the overall crystallization of polymers has been developed which separates the pure geometric spreading of the semicrystalline superstructures from the increasing crystallinity inside these entities. The model uses the Avrami theory for the geometric part and a freely optional function for the increasing local crystallinity. The two functions are combined by a mathematical procedure called convolution. The free option of the local crystallinity function enables this model to permit calculation of this function, which is not accessible to direct measurement. Thus with given Avrami parameters and measured values of the time-dependent overall crystallinity, this function of the local crystallinity (secondary crystallization function) can be calculated. The model has been applied to test data produced by computer simulations. KW - Thermoplaste KW - Kristallisation KW - Nachkristallisation KW - Sphärolithe KW - Kristallisationskinetik KW - Modellrechnung PY - 1996 U6 - https://doi.org/10.1080/00222349608220382 SN - 0022-2348 SN - 1525-609X VL - 35 IS - 3-4 SP - 295 EP - 302 PB - Dekker Chemistry CY - New York, NY AN - OPUS4-11983 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Schulz, Eckhard A1 - Kalinka, Gerhard A1 - Auersch, W. T1 - Effect of Transcrystallization in Carbon Fiber Reinforced Poly(p/phenylene sulfide) Composites on the Interfacial Shear Strength Investigated with the Single Fiber Pull-Out Test N2 - The effect of transcrystallinity in carbon fiber reinforced poly(p-phenylene sulfide (PPS) composites on the apparent shear strength was investigated with the single fiber pull-out test. Transcrystalline zones around the reinforcing fibers do not seem to improve the adhesion level significantly. Neighbor fibers hinder the formation of the transcrystalline zone and a ductile fracture behavior can be observed. However, the apparent strength level is slightly higher for composites containing such reinforcing neighbor fibers compared with single fiber composite samples. During annealing a brittle interface can be formed in the multifiber composite yielding a higher level of the apparent shear strength. KW - Thermoplaste KW - Kristallisation KW - Transkristallisation KW - Interface KW - Verbundwerkstoffe KW - Pull-out KW - Haftung KW - Adhäsion KW - Reibung PY - 1996 U6 - https://doi.org/10.1080/00222349608220393 SN - 0022-2348 SN - 1525-609X VL - 35 IS - 3-4 SP - 527 EP - 546 PB - Dekker Chemistry CY - New York, NY AN - OPUS4-11987 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Hampe, Andreas A1 - Kalinka, Gerhard A1 - Meretz, S. A1 - Schulz, Eckhard T1 - An advanced equipment for single-fibre pull-out test designed to monitor the fracture process KW - Verbundwerkstoffe KW - Thermoplaste KW - Adhäsion KW - Reibung KW - Haftung KW - Interface KW - Schubfestigkeit KW - Scherfestigkeit KW - Messmethode PY - 1995 SN - 0010-4361 VL - 26 IS - 1 SP - 40 EP - 46 PB - Butterworth-Heinemann CY - Guildford, Surrey AN - OPUS4-11988 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Schulz, Eckhard A1 - Kalinka, Gerhard A1 - Meretz, S. A1 - Hampe, Andreas T1 - Pull-out of Single Fibres KW - Verstärkungsfaser KW - Verbundwerkstoffe KW - Interface KW - Adhäsion KW - Reibung KW - Haftung KW - Thermoplast PY - 1994 SN - 0945-0084 VL - 84 IS - 5 SP - 25 EP - 26 PB - Hanser CY - München AN - OPUS4-11989 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Auer, C. A1 - Kalinka, Gerhard A1 - Krause, T. A1 - Hinrichsen, G. T1 - Crystallization Kinetics of Pure and Fiber-Reinforced Poly(phenylene Sulfide) KW - Verbundwerkstoffe KW - Thermoplaste KW - Kristallisation KW - Kristallisationskinetik KW - Erstarrung KW - Avrami KW - Modellrechnung KW - Simulation PY - 1994 SN - 0021-8995 SN - 1097-4628 VL - 51 SP - 407 EP - 413 PB - Wiley InterScience CY - Hoboken, NJ AN - OPUS4-11991 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Krause, T. A1 - Kalinka, Gerhard A1 - Auer, C. A1 - Hinrichsen, G. T1 - Computer Simulation of Crystallization Kinetics in FIber-Reinforced Composites KW - Verbundwerkstoffe KW - Thermoplaste KW - Kristallisation KW - Kristallisationskinetik KW - Erstarrung KW - Avrami KW - Modellrechnung KW - Simulation PY - 1994 SN - 0021-8995 SN - 1097-4628 VL - 51 SP - 399 EP - 406 PB - Wiley InterScience CY - Hoboken, NJ AN - OPUS4-11992 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Schulz, Eckhard A1 - Kalinka, Gerhard A1 - Meretz, S. A1 - Hampe, Andreas T1 - Einzelfaserauszug - Eine Methode zum Bestimmen der Grenzflächenfestigkeit KW - Verstärkungsfaser KW - Verbundwerkstoffe KW - Interface KW - Adhäsion KW - Reibung KW - Haftung KW - Thermoplast PY - 1994 SN - 0023-5563 VL - 84 IS - 5 SP - 608 EP - 610 PB - Hanser CY - München AN - OPUS4-11994 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Nowak, H. A1 - Kalinka, Gerhard A1 - Hinrichsen, G. T1 - Investigations on the cold crystallization of pure and filled PETP by dielectric measurements N2 - The cold crystallization of pure and filled poly(ethylene terephthalate) (PETP) after quenching from the melt has been investigated by dielectric measurements in two different modes: The first one using constant heating-rate (in the temperature range from 320 to 480 K) and the second one under isothermal conditions (at 378 K). The complex dielectric constant (ε´, tan δ) is influenced by crystallization. Two α-relaxation regions are identified: The αa-relaxation region from the pure amorphous phase and the α´-relaxation region from the spherulitic phase. The investigations on the filled systems (PETP + 10% aramid puple, PETP + 30% short glass fibres) prove that an influence of the fillers on the time delay and rate of crystallization and on the geometry of the growing spherulites exists. KW - Verbundwerkstoffe KW - Gefüllte Kunststoffe KW - Elektrische Eigenschaften KW - Verlustfaktor KW - Dielektrische Analyse PY - 1993 SN - 0323-7648 SN - 1521-4044 VL - 44 IS - 1 SP - 25 EP - 28 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-11995 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Kalinka, Gerhard A1 - Boro, I. A1 - Augustin, G. A1 - Hampe, Andreas A1 - Hinrichsen, G. T1 - Ermüdungsverhalten von Hochleistungs-Faserverbundwerkstoffen mit thermoplastischer Matrix KW - Verbundwerkstoffe KW - Ermüdung KW - Biegeschwingung KW - Thermoplaste KW - Glasfaser PY - 1990 SN - 0023-5563 VL - 80 IS - 5 SP - 626 EP - 630 PB - Hanser CY - München AN - OPUS4-11996 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Kalinka, Gerhard A1 - Boro, I. A1 - Augustin, G. A1 - Hampe, Andreas A1 - Hinrichsen, G. T1 - Fatigue Behaviour of High-Performance Fibre-Reinforced Composites with a Thermoplastic Matrix KW - Verbundwerkstoffe KW - Ermüdung KW - Biegeschwingung KW - Thermoplaste KW - Glasfaser PY - 1990 SN - 0723-0192 VL - 80 IS - 5 SP - 36 EP - 38 PB - Hanser CY - Munich AN - OPUS4-11999 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Hinrichs, V. A1 - Leistner, A. A1 - Kalinka, Gerhard A1 - Schulz, Eckhard A1 - Hinrichsen, G. T1 - Viscoelastic properties of the interphase in fibre reinforced polymers - measurement and simulation KW - Polymer KW - Glass fibre KW - Interphase KW - Coating KW - Glass transition KW - Dynamic KW - Viscoelastic PY - 1999 VL - 6 IS - 2 SP - 93 EP - 101 PB - North-Holland CY - New York, NY AN - OPUS4-12003 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Kalinka, Gerhard A1 - Hinrichsen, G. T1 - Two-dimensional computer simulation of spherulite formation by branching lamellae KW - Thermoplaste KW - Kristallisation KW - Sphärolithe KW - Lamellen KW - Modellrechnungen PY - 1997 SN - 0323-7648 SN - 1521-4044 VL - 48 SP - 256 EP - 261 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-12004 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kalinka, Gerhard A1 - Hinrichsen, G. T1 - Computersimulation der lamellar-shpärolithischen Kristallisation bei Polymeren T2 - 5. Berliner Polymeren-Tage CY - Potsdam, Germany DA - 1994-10-05 PY - 1994 AN - OPUS4-12007 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kalinka, Gerhard A1 - Hampe, Andreas T1 - Charakterisierung des Faser-Matrix-Interface mit dem Indentation-Test T2 - Verbundwerkstoffe und Werkstoffverbunde CY - Bayreuth, Germany DA - 1995-10-25 PY - 1995 AN - OPUS4-12008 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bismarck, A. A1 - Carreyette, S. A1 - Fontana, Q.P.V. A1 - Greenhalgh, E.S. A1 - Jacobsson, P. A1 - Johansson, P. A1 - Marczewski, M.J. A1 - Kalinka, Gerhard A1 - Kucernak, A. A1 - Shaffer, M.S. A1 - Shirshova, N. A1 - Steinke, J.H.G. A1 - Wienrich, Malte T1 - Multifunctional epoxy resin for structural supercapacitors N2 - Polymer-based electrolytes based on commercially available epoxy resins were prepared through the addition of a liquid electrolyte, a solution of a lithium salt in an ionic liquid. The polymer monoliths were characterized using impedance spectroscopy, 3-point bending test, scanning electron microscopy (SEM) and nitrogen adsorption (BET). The balance of ionic conductivity and flexural modulus is crucially dependent on the relative proportions of epoxy resin to electrolyte. Also the effect of the liquid electrolyte on curing kinetics and processing was assessed by complex viscosity measurements and differential scanning calorimetry (DSC). Only one out of the three resins investigated exhibited a significant acceleration effect. T2 - ECCM15 - 15th European conference on composite materials CY - Venice, Italy DA - 2012-06-24 KW - Multifunctional epoxy KW - Polymer electrolyte KW - Morphology KW - Ionic liquid PY - 2012 SN - 978-88-88785-33-2 SP - 1 EP - 8(?) AN - OPUS4-28694 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wienrich, Malte A1 - Kalinka, Gerhard A1 - Greenhalgh, E.S. A1 - Carreyette, S. A1 - Bistritz, Martina A1 - Shirshova, N. A1 - Houllé, M. A1 - Asp, L. E. A1 - Bismarck, A. A1 - Fontana, Q.P.V. T1 - Impact of ionic liquid on the mechanical performance of matrix polymer for fibre reinforced materials for energy storage N2 - For the concept of using structural materials such as carbon fibre reinforced plastics as energy storage devices, new matrix polymers are required. These polymers must provide ionic conductivity as well as adequate mechanical strength. In the EU-Project StorAGE this requirements are fulfilled by adding ionic liquid to commercial polymers. The mechanical properties of these mixtures materials were characterized by using a 3-point-bending device. In addition, single fibre pull test were performed in order to get information on the interfacial shear strength. Adding of ionic liquid has an impact on the mechanical performance of the materials. A decrease of the flexural strength and modulus of less than 10% of the value of the reference materials took part. The interfacial shear strength decreased to a value of around one third compare to the reference material. T2 - ECCM15 - 15th European conference on composite materials CY - Venice, Italy DA - 2012-06-24 KW - Multifunctional epoxy resin KW - Fibre-matrix adhesion KW - Single fibre pull-out test KW - Ionic liquid PY - 2012 SN - 978-88-88785-33-2 SP - 1 EP - 4(?) AN - OPUS4-28695 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Michaeli, W. A1 - Baranowski, T. A1 - Kalinka, Gerhard T1 - Einfluss der Mikrostruktur auf den Druck- und Zug-E-Modul teilkristalliner Kunststoffe N2 - In Kooperation zwischen dem Institut für Kunststoffverarbeitung (IKV) und der Bundesanstalt für Materialforschung und -prüfung (BAM) wurde das mechanische Verhalten unter Druck- und Zugbelastung unterschiedlicher morphologischer Strukturen teilkristalliner Thermoplaste (PP und POM) untersucht. Im Ergebnis steigt der E-Modul sowohl der druck- wie auch zugbelasteten Prüfkörper aus spritzgegossenem PP und POM mit gröberem Gefüge an. Probekörper mit scherinduziertem Gefüge zeigen einen hohen Einfluss des Kristallisationsgrads auf den E-Modul. KW - Carbon fibre KW - Nanotubes KW - Hierarchical composites KW - Pull-out test KW - Push-out test PY - 2011 SN - 0025-5300 VL - 53 IS - 10 SP - 616 EP - 628 PB - Hanser CY - München AN - OPUS4-24341 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Schukar, Vivien A1 - Kusche, Nadine A1 - Kalinka, Gerhard A1 - Habel, Wolfgang T1 - Field deployable fiber bragg grating strain patch for long-term stable health monitoring applications N2 - A fiber Bragg grating (FBG) strain patch specially adapted for long-term and high-strain applications has been developed and characterized. The design concept for the patch is based on a glass-fiber reinforced plastic (gfrp) carrier material. The developed concept for the FBG integration into the carrier material was derived from reliable integration procedure of FBG sensors into composite structures. The patches' temperature sensitivity, strain gauge factor, fiber–matrix interface adhesion and fatigue behavior were characterized. As a result, FBG strain patches with linear temperature and strain behavior, as well as excellent fatigue resistance, were developed and can be used as part of a monitoring system for advanced composite materials in aerospace structures or wind turbine power plants. KW - Fiber Bragg grating KW - Patch KW - Strain gauge factor KW - Temperature sensitivity KW - Push-out test KW - Validation KW - Fatigue behavior PY - 2013 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:b43-276271 SN - 2076-3417 VL - 3 IS - 1 SP - 39 EP - 54 PB - MDPI CY - Basel AN - OPUS4-27627 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kalinka, Gerhard T1 - Mikromechanische Methoden zur Messung der Faser-Matrix-Haftung in Polymermatrix-Verbundwerkstoffen T2 - Kolloquium des Fraunhofer IZM CY - Teltow, Germany DA - 2007-07-20 PY - 2007 AN - OPUS4-15858 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kalinka, Gerhard T1 - Mechanische Charakterisierung des Faser-Matrix-Interface mit Einzelfaser-Tests T2 - Werkstoffwoche 2004: Kongress für innovative Werkstoffe, Verfahren und Anwendungen CY - Munich, Germany DA - 2004-09-21 PY - 2004 AN - OPUS4-4701 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kalinka, Gerhard T1 - A model of spherulitic crystallization based on growing lameallae T2 - 9th Microsymposium of Electron Microscopy in Materials Science CY - Lutherstadt Wittenberg, Germany DA - 2004-05-06 PY - 2004 AN - OPUS4-4702 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kalinka, Gerhard T1 - Micro indentation near stiff-soft phase boundaries T2 - Polydays 2004 CY - Potsdam, Germany DA - 2004-10-04 PY - 2004 AN - OPUS4-4703 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kalinka, Gerhard T1 - Micro indentation near stiff-soft boundaries T2 - "Nanomech5, 5th European Symposium on nano-Mechanical Testing" CY - Hückelhoven, Germany DA - 2004-09-07 PY - 2004 AN - OPUS4-4704 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kalinka, Gerhard T1 - Bestimmung der Haftfestigkeit in Verbundwerkstoffen mittels Indentations- und Durchdrückexperimenten T2 - DGM Fachausschuss "Gefüge und Eigenschaften von Polymerwerkstoffen" CY - Hamburg, Germany DA - 2004-11-26 PY - 2004 AN - OPUS4-4705 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kalinka, Gerhard A1 - Neumann, Burt T1 - Mikromechanische Testmethoden zur Bestimmung von Haftung und Reibung in Faserverbundwerkstoffen T2 - Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR), Institut für Strukturmechanik CY - Braunschweig, Germany DA - 2004-02-04 PY - 2004 AN - OPUS4-4700 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Munz, Martin A1 - Chung, Jae Un A1 - Kalinka, Gerhard ED - Possart, W. T1 - Mapping Epoxy Interphases T2 - 7th European Conference on Adhesion ; 7th EURADH CY - Freiberg, Germany DA - 2004-09-01 KW - Interface KW - Interphase KW - Epoxy KW - Copper (Cu) KW - Polyvinylpyrrolidone (PVP) KW - AFM/SFM KW - DSI KW - EDX/EDS KW - Stiffness KW - Modulus KW - Interdiffusion PY - 2005 SN - 3-527-31263-3 VL - 7 SP - 103 EP - 123 PB - Wiley-VCH CY - Weinheim AN - OPUS4-10894 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Ho, K.K.C. A1 - Lamoriniere, S. A1 - Kalinka, Gerhard A1 - Schulz, Eckhard A1 - Bismarck, A. T1 - Interfacial behavior between atmospheric-plasma-fluorinated carbon fibers and poly(vinylidene fluoride) N2 - Atmospheric-plasma fluorination was used to introduce fluorine functionalities onto the surface of carbon fibers without affecting their bulk properties. The interfacial adhesion between atmospheric-plasma-fluorinated carbon fibers and poly(vinylidene fluoride) (PVDF) was studied by means of direct wetting measurements and single fiber pullout tests. Measured contact angles of PVDF melt droplets on modified carbon fibers show that short exposure times of carbon fibers to atmospheric-plasma fluorination (corresponding to a degree of surface fluorination of F/C = 0.01 (1.1%)) leads to improved wettability of the fibers by PVDF melts. The apparent interfacial shear strength as a measure of practical adhesion, determined by the single-fiber pullout test, increases by 65% under optimal treatment conditions. The improved practical adhesion is not due to the formation of transcrystalline regions around the fibers or a change of the bulk matrix crystallinity or to an increased surface roughness; it seems to be due to the compatibilization of the interface caused of the atmospheric-plasma fluorination of the carbon fibers. KW - Carbon fibers KW - Fluorination KW - Contact angle KW - Interface KW - Adhesion KW - Surface area KW - Fiber properties PY - 2007 U6 - https://doi.org/10.1016/j.jcis.2007.04.076 SN - 0021-9797 SN - 1095-7103 VL - 313 IS - 2 SP - 476 EP - 484 PB - Elsevier CY - Orlando, Fla. AN - OPUS4-16026 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kalinka, Gerhard T1 - Bestimmung der Interface-Festigkeit oder -Trennarbeit mit dem Pull-out-Versuch T2 - Verbundwerkstoffe und Werkstoffverbunde CY - Kassel, Germany DA - 2005-04-06 PY - 2005 AN - OPUS4-6084 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -