Powder Processing Technique for Development of Zirconia-Nickel Functionally Gradient Materials

A powder processing technique is developed for the fabrication of tetragonal zirconia-nickel functionally gradient materials. The powder volume fraction, the linear shrinkage during drying, and the pore radius of monolithic zirconia-nickel green compacts with various zirconia/nickel volume ratios we...

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Bibliographic Details
Published inJournal of the Ceramic Society of Japan Vol. 100; no. 1160; p. 387
Main Authors TAKEBE, Hiromichi, TESHIMA, Takuya, NAKASHIMA, Masazumi, MORINAGA, Kenji
Format Journal Article
LanguageEnglish
Published Tokyo Japan Science and Technology Agency 01.01.1992
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Summary:A powder processing technique is developed for the fabrication of tetragonal zirconia-nickel functionally gradient materials. The powder volume fraction, the linear shrinkage during drying, and the pore radius of monolithic zirconia-nickel green compacts with various zirconia/nickel volume ratios were measured. A multilayer zirconia-nickel green compact with a step-wise compositional gradient was formed by slip casting and then pressureless-sintered. The key to successful fabrication is to avoid the fracture of green compact during drying process in an ambient atmosphere. In conclusion, it is desirable to minimize differences in permeability and pore radius between neighboring layers in a multilayer green compact.
ISSN:1882-0743
1348-6535