Grain boundary studies of doped yttria-stabilized zirconia
- Oak Ridge Inst. for Science and Education, TN (United States)
- Univ. of California, Irvine, CA (United States). Dept. of Biochemical Engineering and Materials Science
- Oak Ridge National Lab., TN (United States). Metals and Ceramics Div.
Achieving superplasticity in fine-grained ceramics is a potential method to lower energy costs associated with ceramic manufacturing via net shape forming. Superplasticity is intrinsic in 3-mol%-yttria-stabilized tetragonal zirconia polycrystals (3Y-TZP), and can be enhanced by addition of glass to form intergranular phases which are thought to both limit grain growth and promote grain boundary sliding. However, superplasticity has not been observed in 8-mol%-yttria-stabilized cubic zirconia (8Y-CSZ), ostensibly due to its larger grain size and high grain growth rates. As part of a larger study, high-spatial-resolution energy-dispersive X-ray spectrometry (EDS) has been performed to characterize intergranular compositions of 3Y-TZP and 8Y-CSZ doped with various glassy phases.
- Research Organization:
- Oak Ridge National Lab., TN (United States)
- Sponsoring Organization:
- USDOE Office of Energy Research, Washington, DC (United States)
- DOE Contract Number:
- AC05-96OR22464
- OSTI ID:
- 654194
- Report Number(s):
- ORNL/CP--97403; CONF-980808--; ON: DE98005719; BR: KC0201010
- Country of Publication:
- United States
- Language:
- English
Similar Records
Control of grain growth using intergranular silicate phases in cubic yttria stabilized zirconia
Grain boundary engineering of highly deformable ceramics