6 Materialchemie
Filtern
Dokumenttyp
- Zeitschriftenartikel (858)
- Vortrag (850)
- Posterpräsentation (348)
- Forschungsdatensatz (87)
- Beitrag zu einem Tagungsband (43)
- Sonstiges (22)
- Forschungsbericht (17)
- Buchkapitel (13)
- Beitrag zu einem Sammelband (10)
- Preprint (8)
Sprache
- Englisch (2094)
- Deutsch (186)
- Mehrsprachig (4)
- Spanisch (2)
Schlagworte
- Nanoparticles (170)
- SAXS (121)
- Mechanochemistry (109)
- XPS (104)
- Laser-induced periodic surface structures (LIPSS) (71)
- X-ray scattering (65)
- Microplastics (60)
- Electron microscopy (59)
- MALDI-TOF MS (58)
- Mikroplastik (58)
Organisationseinheit der BAM
- 6 Materialchemie (2286)
- 6.3 Strukturanalytik (632)
- 6.1 Oberflächen- und Dünnschichtanalyse (620)
- 6.6 Physik und chemische Analytik der Polymere (511)
- 6.2 Material- und Oberflächentechnologien (246)
- 6.5 Synthese und Streuverfahren nanostrukturierter Materialien (229)
- 6.0 Abteilungsleitung und andere (209)
- 1 Analytische Chemie; Referenzmaterialien (132)
- 6.7 Materialsynthese und Design (111)
- 4 Material und Umwelt (90)
- 7 Bauwerkssicherheit (74)
- 5 Werkstofftechnik (68)
- 4.1 Biologische Materialschädigung und Referenzorganismen (56)
- 9 Komponentensicherheit (44)
- 7.5 Technische Eigenschaften von Polymerwerkstoffen (41)
- 8 Zerstörungsfreie Prüfung (41)
- 1.2 Biophotonik (40)
- 5.1 Mikrostruktur Design und Degradation (32)
- 6.4 Materialinformatik (31)
- 1.4 Prozessanalytik (28)
- 7.4 Baustofftechnologie (25)
- 4.2 Material-Mikrobiom Wechselwirkungen (24)
- 5.4 Multimateriale Fertigungsprozesse (24)
- 9.5 Tribologie und Verschleißschutz (22)
- 1.9 Chemische und optische Sensorik (21)
- 9.0 Abteilungsleitung und andere (20)
- 1.8 Umweltanalytik (19)
- VP Vizepräsident (18)
- VP.1 eScience (18)
- 8.5 Röntgenbildgebung (14)
- 1.7 Organische Spuren- und Lebensmittelanalytik (12)
- 1.1 Anorganische Spurenanalytik (11)
- 1.3 Instrumentelle Analytik (11)
- 1.5 Proteinanalytik (11)
- P Präsident (11)
- 8.6 Faseroptische Sensorik (10)
- 1.0 Abteilungsleitung und andere (8)
- 3 Gefahrgutumschließungen; Energiespeicher (8)
- 8.1 Sensorik, mess- und prüftechnische Verfahren (8)
- 4.3 Schadstofftransfer und Umwelttechnologien (7)
- 7.6 Korrosion und Korrosionsschutz (7)
- 4.0 Abteilungsleitung und andere (6)
- 8.0 Abteilungsleitung und andere (6)
- 8.4 Akustische und elektromagnetische Verfahren (6)
- P.0 Präsident und andere (6)
- PST Präsidiale Stabsstelle (6)
- 5.0 Abteilungsleitung und andere (5)
- 5.6 Glas (5)
- 9.2 Versuchsanlagen und Prüftechnik (5)
- 5.3 Polymere Verbundwerkstoffe (4)
- 1.6 Anorganische Referenzmaterialien (3)
- 3.1 Sicherheit von Gefahrgutverpackungen und Batterien (3)
- 3.2 Gefahrguttanks und Unfallmechanik (3)
- 4.4 Thermochemische Reststoffbehandlung und Wertstoffrückgewinnung (3)
- 3.6 Elektrochemische Energiematerialien (2)
- 5.2 Metallische Hochtemperaturwerkstoffe (2)
- 7.1 Baustoffe (2)
- 8.3 Thermografische Verfahren (2)
- 2 Prozess- und Anlagensicherheit (1)
- 2.1 Sicherheit von Energieträgern (1)
- 4.5 Kunst- und Kulturgutanalyse (1)
- 5.5 Materialmodellierung (1)
- 8.2 Zerstörungsfreie Prüfmethoden für das Bauwesen (1)
- 9.4 Integrität von Schweißverbindungen (1)
- MP Mitglied des Präsidiums (1)
- MP.0 Mitglied des Präsidiums und andere (1)
- S Qualitätsinfrastruktur (1)
- S.2 Digitalisierung der Qualitätsinfrastruktur (1)
Paper des Monats
- ja (19)
Laser-induced periodic surface structures (LIPSS, ripples) are a universal phenomenon that can be observed on almost any material after the irradiation by linearly polarized laser beams, particularly when using ultrashort laser pulses with durations in the femtosecond to picosecond range.
During the past few years significantly increasing research activities have been reported in the field of LIPSS, since their generation in a single-step process provides a simple way of nanostructuring and surface functionalization towards the control of optical, mechanical, biological, or chemical surface properties. In this contribution the mechanisms of formation and current applications of LIPSS are reviewed, including the colorization of technical surfaces, the control of surface wetting properties, the mimicry of the natural texture of animal integuments, the tailoring of surface colonization by bacterial biofilms, the advancement of medical pacemakers, and the improvement of the tribological performance of nanostructured metal surfaces.
Femtosecond laser-induced periodic surface structures: from light localization to applications
(2019)
This presentation reviews the current state in the field of Laser-induced Periodic Surface Structures (LIPSS). These surface nanostructures are a universal phenomenon and can be generated on almost any material by irradiation with intense linearly polarized laser radiation. LIPSS are formed in a “self-ordered” way and are often accompanying material processing applications. They can be produced following a single-step process and enable surface functionalization through the adaption of optical, mechanical and chemical surface properties. Their structural sizes typically range from several micrometers down to less than 100 nanometers exhibiting a clear correlation with the polarization direction of the laser radiation. Various types of surface structures are classified, relevant control parameters are identified, and their material specific formation mechanisms are analyzed for different types of inorganic solids, i.e., metals, semiconductors, and dielectrics, through time-resolved optical experiments and theoretical simulations. Finally, technological applications featuring surface functionalization in the fields of optics, fluidics, medicine, and tribology are discussed.
Surface nanostructuring enables the manipulation of many essential surface properties. With the recent rapid advancements in laser technology, a contactless large‐area processing at rates of up to m2 s−1 becomes feasible that allows new industrial applications in medicine, optics, tribology, biology, etc. On the other hand, the last two decades enable extremely successful and intense research in the field of so‐called laser‐induced periodic surface structures (LIPSS, ripples). Different types of these structures featuring periods of hundreds of nanometers only—far beyond the optical diffraction limit—up to several micrometers are easily manufactured in a single‐step process and can be widely controlled by a proper choice of the laser processing conditions. From a theoretical point of view, however, a vivid and very controversial debate emerges, whether LIPSS originate from electromagnetic effects or are caused by matter reorganization. This article aims to close a gap in the available literature on LIPSS by reviewing the currently existent theories of LIPSS along with their numerical implementations and by providing a comparison and critical assessment of these approaches.
Laser-induced periodic surface structures (LIPSS) are a simple and robust route for the nanostructuring of solids that can create various surface functionalities featuring applications in optics, medicine, tribology, energy technologies, etc. While the current laser technologies already allow surface processing rates at the level of m2/min, industrial applications of LIPSS are sometimes hampered by the complex interplay between the nanoscale surface topography and the specific surface chemistry, as well as by limitations in controlling the processing of LIPSS and in the long-term stability of the created surface functions. This Perspective article aims to identify some open questions about LIPSS, discusses the pending technological limitations, and sketches the current state of theoretical modelling. Hereby, we intend to stimulate further research and developments in the field of LIPSS for overcoming these limitations and for supporting the transfer of the LIPSS technology into industry.
In this contribution the mechanisms of formation and current applications of LIPSS are reviewed, including the colorization of technical surfaces, the control of surface wetting properties, the mimicry of the natural texture of animal integuments, the tailoring of surface colonization by bacterial biofilms, and the improvement of the tribological performance of nanostructured metal surfaces.
Laser texturing is an emerging technology for generating surface functionalities on basis of optical, mechanical, or chemical properties. Taking benefit of laser sources with ultrashort (fs) pulse durations features outstanding precision of machining and negligible rims or burrs surrounding the laser-irradiation zone. Consequently, additional mechanical or chemical post-processing steps are usually not required for fs-laser surface texturing (fs-LST). This work aimed to provide a bridge between research in the field of tribology and laser materials processing. The paper reviews the current state-of-the-art in fs-LST, with a focus on the tribological performance (friction and wear) of specific self-organized surface structures (so-called ripples, grooves, and spikes) on steel and titanium alloys. On the titanium alloy, specific sickle-shaped hybrid micro-nanostructures were also observed and tribologically tested. Care is taken to identify accompanying effects affecting the materials hardness, superficial oxidation, nano- and microscale topographies, and the role of additives contained in lubricants, such as commercial engine oil.
Laser-induced periodic surface structures (LIPSS) are a universal phenomenon and can be generated on almost any material by irradiation with linearly polarized radiation. This chapter reviews the current state in the field of LIPSS, which are formed in a “self-ordered” way and are often accompanying materials processing applications. LIPSS can be produced in a single-stage process and enable surface nanostructuring and, in turn, adaption of optical, mechanical, and chemical surface properties. Typically, they feature a structural size ranging from several micrometers down to less than 100 nm and show a clear correlation with the polarization direction of the light used for their generation. Various types of LIPSS are classified, relevant control parameters are identified, and their material-specific formation mechanisms are analyzed for different types of inorganic solids, i.e., metals, semiconductors, and dielectrics. Finally, technological applications featuring surface functionalization in the fields of optics, fluidics, medicine, and tribology are discussed.
Laser-induced periodic surface structures (LIPSS) are a universal phenomenon and can be generated on almost any material by irradiation with linearly polarized radiation. This chapter reviews the current state in the field of LIPSS, which are formed in a “self-ordered” way and are often accompanying materials processing applications. LIPSS can be produced in a single-stage process and enable surface nanostructuring and, in turn, adaption of optical, mechanical, and chemical surface properties. Typically, they feature a structural size ranging from several micrometers down to less than 100 nm and show a clear correlation with the polarization direction of the light used for their generation. Various types of LIPSS are classified, relevant control parameters are identified, and their material-specific formation mechanisms are analyzed for different types of inorganic solids, i.e., metals, semiconductors, and dielectrics. Finally, technological applications featuring surface functionalization in the fields of optics, fluidics, medicine, and tribology are discussed.
Laser-induced periodic surface structures (LIPSS) are a universal phenomenon and can be generated on almost any material by irradiation with linearly polarized radiation. This chapter reviews the current state in the field of LIPSS, which are formed in a “self-ordered” way and are often accompanying materials processing applications. LIPSS can be produced in a single-stage process and enable surface nanostructuring and, in turn, adaption of optical, mechanical, and chemical surface properties. Typically, they feature a structural size ranging from several micrometers down to less than 100 nm and show a clear correlation with the polarization direction of the light used for their generation. Various types of LIPSS are classified, relevant control parameters are identified, and their material-specific formation mechanisms are analyzed for different types of inorganic solids, i.e., metals, semiconductors, and dielectrics. Finally, technological applications featuring surface functionalization in the fields of optics, fluidics, medicine, and tribology are discussed.
Modern life and global communication would not be possible without technologically tailored thin films; they are omnipresent in daily life applications. In most cases, the films are deposited entirely at the carrying substrates in a specific processing step of the device or sample. In some cases, however, removal or modification must be performed locally, i.e., site-controlled and material selective through an additional laser processing step. For that ultrashort laser pulses with durations in the femtosecond and picosecond range can provide unique advantages and capabilities in industrially scalable schemes. This article reviews the current state of the research and corresponding industrial transfer related to the structuring of thin films by ultrashort pulsed lasers. It focuses on the pertinent historic developments, reveals the relevant physical and chemical effects, explores the ultimate limits, and discusses selected industrial and scientific applications.