High temperature failure mechanisms in ceramics
نویسندگان
چکیده
منابع مشابه
Mechanisms of High-Temperature Fatigue in Silicon Carbide Ceramics
produce a composite, which is typically accomplished by incorporating continuous fibers, whiskers, platelets, or second The high-temperature mechanical properties of an in situ phase particles (3). For monolithic ceramics, in situ toughening toughened silicon carbide, with Al, B and C sintering additives can also be effective with microstructures consisting of elongated (ABC-Sic), have been exa...
متن کاملAdvanced analysis of high-temperature failure mechanisms in telecom lasers
Laser performance degradation at elevated temperature often requires the use of costly cooling devices. Much effort has been devoted to understand and overcome the high-temperature failure of laser diodes used in telecommunication applications (wavelength 1.3-1.6 gm). Various physical mechanisms have been proposed to explain high-temperature effects, including Auger recombination, carrier leaka...
متن کاملHigh-Temperature Proton-Conducting Ceramics Developed
with the perovskite structure and with the trivalent cation (M) substitution at the B-site to introduce oxygen vacancies. The high affinity for hydrogen ions (H) is advantageous for protonic transport, but it increases the reactivity toward water (H2O) and carbon dioxide (CO2), which can lead to premature membrane failure. In addition, there are considerable technological challenges related to ...
متن کاملHigh curie temperature ternary piezoelectric ceramics
A preferred piezoelectric ceramic material is a BiFeO3—PbZrO3—PbTiO3 ternary solid solution wherein proportions of the constituent perovskite metal oxides are selected so that the material exhibits relatively high Curie temperatures above 380° C. and useful piezoelectric properties. Disciplines Ceramic Materials This patent is available at Iowa State University Digital Repository: http://lib.dr...
متن کاملHIGH TEMPERATURE ELASTIC STRAIN EVOLUTION IN Si3N4-BASED CERAMICS
Tension experiments in vacuum were performed on a monolithic Si3N4 sample at 1375°C and a 20Vol% SiCp-Si3N4 composite sample at 1400°C using the new SMARTS diffractometer at the Los Alamos Neutron Science Center. The deep penetration of neutrons facilitated these in-situ studies. In particular, the hkl-dependent strains were measured and the results interpreted by Eshelby-based modeling for the...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Acta Metallurgica
سال: 1980
ISSN: 0001-6160
DOI: 10.1016/0001-6160(80)90062-0