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ZIRCONIA SINTERED BODY, ZIRCONIA COMPOSITION, ZIRCONIA PRE-SINTERED BODY AND DENTAL PROSTHESIS
A zirconia sintered body is provided in which the strength between layers of powders is improved. A flexural strength of a test sample of the zirconia sintered body, measured pursuant to JISR1601, is not less than 1100 MPa. The test sample is formed by preparing a plurality of zirconia powders, each containing zirconia and a stabilizer that suppresses phase transition of zirconia, the zirconia powders differing in a composition, layering the zirconia powders to form a zirconia composition, and sintering the zirconia composition to form a zirconia sintered body. The flexural strength is measured such that a load point is positioned at a boundary of the zirconia powders, the boundary traversing the test sample of the sintered body along a direction of load application.
ZIRCONIA SINTERED BODY, ZIRCONIA COMPOSITION, ZIRCONIA PRE-SINTERED BODY AND DENTAL PROSTHESIS
A zirconia sintered body is provided in which the strength between layers of powders is improved. A flexural strength of a test sample of the zirconia sintered body, measured pursuant to JISR1601, is not less than 1100 MPa. The test sample is formed by preparing a plurality of zirconia powders, each containing zirconia and a stabilizer that suppresses phase transition of zirconia, the zirconia powders differing in a composition, layering the zirconia powders to form a zirconia composition, and sintering the zirconia composition to form a zirconia sintered body. The flexural strength is measured such that a load point is positioned at a boundary of the zirconia powders, the boundary traversing the test sample of the sintered body along a direction of load application.
ZIRCONIA SINTERED BODY, ZIRCONIA COMPOSITION, ZIRCONIA PRE-SINTERED BODY AND DENTAL PROSTHESIS
YAMADA YOSHIHISA (author) / MATSUMOTO ATSUSHI (author) / ITO YOSHIHISA (author)
2016-03-24
Patent
Electronic Resource
English
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