TY - CONF A1 - Mieller, Björn A1 - Rabe, Torsten T1 - Structuring of LTCC Substrates by a Combination of Pressure-Assisted Sintering and Hot-Embossing T2 - IMAPS/ACerS 11th International Conference and Exhibition on Ceramic Interconnect and Ceramic Microsystem Technologies (CICMT 2015) CY - Dresden, Germany DA - 2015-04-20 PY - 2015 N1 - Geburtsname von Mieller, Björn: Brandt, B. - Birth name of Mieller, Björn: Brandt, B. AN - OPUS4-33090 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Mieller, Björn A1 - Rabe, Torsten T1 - Compilation and evaluation of the pressure-assisted master sintering surface for low-temperature cofired ceramics N2 - Pressure-assisted sintering (PAS) is an established procedure for the production of low-temperature cofired ceramics (LTCC) without lateral shrinkage and minimal shrinkage tolerances for automotive and high-frequency applications. To develop a feasible model for the prediction of densification during that process, master sintering curves (MSCs) for the commercial LTCC DP951 were generated from thermomechanical analysis (TMA) data in the pressure regime from 2 to 500 kPa. Strain mainly related to creep deformation of the LTCC was identified by evaluation of the strain rate and was discarded for the determination of MSC parameters. It was found that no creep occurred at any pressure up to a relative density of 0.9. Different pressure levels can be modeled with the same activation energy of 400 kJ/mol. Densification curves predicted by the model were in good agreement with experimental data. Based on MSCs, the pressure-assisted master sintering surface was compiled to illustrate the influence of pressure on densification. The results show that the MSC approach is a suitable method to feasibly predict the densification of LTCC during PAS. KW - LTCC KW - Low temperature co-fired ceramics KW - Master sintering curve KW - Activation energy KW - DP951 PY - 2015 DO - https://doi.org/10.1111/jace.13732 SN - 0002-7820 SN - 1551-2916 N1 - Geburtsname von Mieller, Björn: Brandt, B. - Birth name of Mieller, Björn: Brandt, B. VL - 98 IS - 11 SP - 3503 EP - 3508 PB - Blackwell Publishing CY - Malden AN - OPUS4-34795 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Agudo Jácome, Leonardo A1 - Eggeler, Gunther A1 - Pöthkow, Kai A1 - Pätsch, Olaf A1 - Hege, H. C. T1 - Three-Dimensional Characterization of Superdislocation Interactions in the High Temperture and Low Stress Creep Regime of Ni-Base Superalloy Single Crystals T2 - 13th International Conference on Creep and Fracture of Engineering Materials and Structures (CREEP 2015) CY - Toulouse, France DA - 2015-05-31 PY - 2015 AN - OPUS4-34517 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Agudo Jácome, Leonardo A1 - Göbenli, Gülcan A1 - Eggeler, Gunther T1 - High Temperature and Low Stress (011)<01-1> Shear Creep Deformation of the Single Crystal Ni-Based Superalloy LEK 94 - elementary softening and deformation processes T2 - 17th International Conference on the Strength of Materials (ICSMA17) CY - Brno, Czech Republic DA - 2015-10-01 PY - 2015 AN - OPUS4-34516 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Vogl, Jochen A1 - Noordmann, J. A1 - Rienitz, O. A1 - Mieller, Björn T1 - Certification of an isotope reference material (IRM) for magnesium: Determination of SI traceable isotope ratios T2 - 14th International Symposium on Biological and Environmental Reference Materials (BERM 14) CY - National Harbor, Maryland 20745 USA DA - 2015-10-11 PY - 2015 N1 - Geburtsname von Mieller, Björn: Brandt, B. - Birth name of Mieller, Björn: Brandt, B. AN - OPUS4-34483 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -