Slurry composition and sintered part prepared therefrom
AssigneeNissan Chemical Industries, Ltd.
InventorsTakao Kaga, Yuzi Hoshi, Yutaka Kimura
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Abstract
A sheet-forming slurry composition is composed of zirconia powder, an organic binder, and a solvent. The zirconia powder contains 2 to 10 mol % of yttria in solid solution form and has a BET specific surface area of up to about 12 m.sup.2 /g and a mean particle size multiplied by the specific surface area of up to 3 .mu.m.m.sup.2 /g. The composition is formed into a green sheet having improved flexibility, binder removal capability, sinterability, and dimensional stability, which is then fired into a sintered part having improved denseness, gas barrier property, and surface smoothness.
Claims15
A sheet-forming slurry composition comprising zirconia powder, an organic binder, and a solvent,
- the zirconia powder containing 2 to 10 mol % of yttria in solid solution form and having a specific surface area of 5-10 m.sup.2 /g as measured by BET method and a mean particle size multiplied by the specific surface area of up to 3 .mu.m.m.sup.2 /g;
- wherein the organic binder is present in an amount of 16-30 parts by weight per 100 parts of zirconia powder.
Dependencies are inferred from the claim text.