Gas-pressure forming of superplastic ceramic sheet
Superplasticity in ceramics has now advanced to the stage that technologically viable superplastic deformation processing can be performed. In this paper, examples of biaxial gas-pressure forming of several ceramics are given. These include yttria stabilized, tetragonal zirconia (YTZP) a 20% alumina/YTZP composite, and silicon. In addition, the concurrent superplastic forming and diffusion bonding of a hybrid YTZP/C103 (ceramic-metal) structure are presented. These forming processes offer technological advantages of greater dimensional control and increased variety and complexity of shapes than is possible with conventional ceramic shaping technology.
- Research Organization:
- Lawrence Livermore National Lab., CA (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States); Department of Defense, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 10189318
- Report Number(s):
- UCRL-CR--114189; ON: DE94001520; CNN: Contract DAAL03-89-C-0028
- Country of Publication:
- United States
- Language:
- English
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