Torsten Rabe
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View article: Manufacturing and deformation behavior of alumina and zirconia helical springs at room temperature
Manufacturing and deformation behavior of alumina and zirconia helical springs at room temperature Open
Ceramic helical springs with identical dimensions were produced by hard machining from alumina, alumina toughened zirconia (ATZ), and tetragonal zirconia polycrystals (TZP) stabilized with different oxides. According to the results of the …
View article: Lowering the sintering temperature of calcium manganate for thermoelectric applications
Lowering the sintering temperature of calcium manganate for thermoelectric applications Open
This study combines three different approaches to lower the sintering temperature of Sm-doped CaMnO3 to save energy in production and facilitate co-firing with other low-firing oxides or metallization. The surface energy of the powder was …
View article: Glass‐ceramic composites as insulation material for thermoelectric oxide multilayer generators
Glass‐ceramic composites as insulation material for thermoelectric oxide multilayer generators Open
Thermoelectric generators can be used as energy harvesters for sensor applications. Adapting the ceramic multilayer technology, their production can be highly automated. In such multilayer thermoelectric generators, the electrical insulati…
View article: A Revised Relationship Between Fracture Toughness and Y2O3 Content in Modern Dental Zirconias
A Revised Relationship Between Fracture Toughness and Y2O3 Content in Modern Dental Zirconias Open
The relationship between fracture toughness and Yttria content in modern zirconia ceramics was revised. For that purpose, we evaluated here 10 modern Y2O3-stabilized zirconia (YSZ) materials currently used in biomedical applications, namel…
View article: A Revised Relationship Between Fracture Toughness and Y2O3 Content in Modern Dental Zirconias
A Revised Relationship Between Fracture Toughness and Y2O3 Content in Modern Dental Zirconias Open
The relationship between fracture toughness and Yttria content in modern zirconia ceramics was revised. For that purpose, we evaluated here 10 modern Y 2 O 3 -stabilized zirconia (YSZ) materials currently used in biomedical applications, n…
View article: Wet chemical porosification with phosphate buffer solutions for permittivity reduction of LTCC substrates
Wet chemical porosification with phosphate buffer solutions for permittivity reduction of LTCC substrates Open
The wireless high-frequency technology requires a robust, cost-effective, and highly integrated substrate technology offering the capability for areas of tailored permittivity. The wet-chemical porosification of low temperature co-fired ce…
View article: Influence of pressure and dwell time on pressure‐assisted sintering of calcium cobaltite
Influence of pressure and dwell time on pressure‐assisted sintering of calcium cobaltite Open
Calcium cobaltite Ca 3 Co 4 O 9 , abbreviated Co349, is a promising thermoelectric material for high‐temperature applications in air. Its anisotropic properties can be assigned to polycrystalline parts by texturing. Tape casting and pressu…
View article: Advancing spray granulation by ultrasound atomization
Advancing spray granulation by ultrasound atomization Open
The influence of the atomization technique on the suitability of granules for dry pressing is the focus of the presented investigations. Therefore, destabilized alumina, zirconia, and zirconia toughened alumina (ZTA) slurries were spray dr…
View article: Liquid-crystal-based amplitude tuner and tunable SIW filter fabricated in LTCC technology
Liquid-crystal-based amplitude tuner and tunable SIW filter fabricated in LTCC technology Open
Tunable microwave devices will play an important role in future wireless systems, in which high-frequency bands, e.g. millimeter waves, will become promising, due to its huge spectrum availability. At such frequency bands, liquid crystals …
View article: Compilation and Evaluation of the Pressure‐Assisted Master Sintering Surface for Low‐Temperature Cofired Ceramics
Compilation and Evaluation of the Pressure‐Assisted Master Sintering Surface for Low‐Temperature Cofired Ceramics Open
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 d…