FACTORS INFLUENCING THE FLOW AND FRACTURE OF SUPERPLASTIC CERAMICS: FINAL TECHNICAL REPORT

Langdon, Terence G.

University of Southern California, Los Angeles, CA (United States)

关键词: Fractures;    36 Materials Science;    Composite Materials;    Zirconia;    Research Programs Ceramics;   

DOI  :  10.2172/821191
RP-ID  :  NONE
RP-ID  :  FG03-92ER45472
RP-ID  :  821191

美国|英语

来源: UNT Digital Library

【 摘 要 】

This is the Final Technical Report describing the achievements on this DOE program. This research program was initiated with the objective of obtaining a better understanding of the flow, and especially the superplastic flow, of representative ceramics. Detailed experiments were undertaken on the yttria-stabilized tetragonal zirconia (Y-TZP) and on various composite materials containing Y-TZP and Al{sub 2}O{sub 3}. In addition, a comprehensive theoretical interpretation was developed which showed, for the first time, that the superplasticity of ceramic materials has very significant differences from the conventional superplastic flow in metals.