Influence of the particle size and phase type of ZrO{sub 2} on the fabrication and residual stress of ZrO{sub 2}SUS304 FGM
- Hanyang Univ., Seoul (Korea, Republic of)
- NIST, Gathersburg, MD (United States)
TZP/SUS304- and ZT/SUS304-FGM were fabricated by pressureless sintering. The defects originating from the different shrinkage and sintering behavior of ceramic and metal could be controlled by the adjustments in terms of the particle size and phase type of ZrO{sub 2}. The residual stresses in TZP/SUS304-FGM have irregular patterns resulting from sintering defects and thermal expansion mismatch. In ZT/SUS304-FGM, compressive stress is induced on the ceramic regions by the volume expansion of MZP. Also, compressive stress is induced on the metal regions by the constraint of warping and frustum formation which must be created to the metal direction caused by the difference of CTEs. As a consequence, it has been verified that the residual stresses generated on FGM are dominantly influenced by the thickness and number of compositional gradient layers, and the sintering defects and residual stress can be controlled by the decrease of the difference of the shrinkage and sintering behavior of each component.
- OSTI ID:
- 567856
- Report Number(s):
- CONF-9604124-; TRN: 98:000175-0004
- Resource Relation:
- Conference: 98. annual meeting of the American Ceramic Society, Indianapolis, IN (United States), 14-17 Apr 1996; Other Information: PBD: 1997; Related Information: Is Part Of Ceramic transactions: Functionally graded materials - manufacture, properties, and applications. Volume 76; Ghosh, A.; Miyamoto, Yoshinari; Reimanis, I.; Lannutti, J.J. [eds.]; PB: 200 p.
- Country of Publication:
- United States
- Language:
- English
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