Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
SILICON NITRIDE SINTERED BODY, ROLLING BODY USING SAME, AND BEARING
To provide: a silicon nitride sintered body having excellent mechanical property, in particular fracture toughness, and having long lifetime of a product into which the silicon nitride sintered body is processed; a rolling element using the silicon nitride sintered body; and a bearing. The silicon nitride sintered body contains a rare earth element and an aluminum element. The silicon nitride sintered body contains 6-13 wt% of the rare earth element in terms of oxide, and 6-13 wt% of the aluminum element in terms of oxide, relative to the total weight of the silicon nitride sintered body. The silicon nitride sintered body contains an inclusion (I) in a surface layer portion that is a region within 2 mm from a surface of the silicon nitride sintered body. A ratio of a total sectional area of the inclusion (I) to a total sectional area of the surface layer portion is 0.05% or more.
SILICON NITRIDE SINTERED BODY, ROLLING BODY USING SAME, AND BEARING
To provide: a silicon nitride sintered body having excellent mechanical property, in particular fracture toughness, and having long lifetime of a product into which the silicon nitride sintered body is processed; a rolling element using the silicon nitride sintered body; and a bearing. The silicon nitride sintered body contains a rare earth element and an aluminum element. The silicon nitride sintered body contains 6-13 wt% of the rare earth element in terms of oxide, and 6-13 wt% of the aluminum element in terms of oxide, relative to the total weight of the silicon nitride sintered body. The silicon nitride sintered body contains an inclusion (I) in a surface layer portion that is a region within 2 mm from a surface of the silicon nitride sintered body. A ratio of a total sectional area of the inclusion (I) to a total sectional area of the surface layer portion is 0.05% or more.
SILICON NITRIDE SINTERED BODY, ROLLING BODY USING SAME, AND BEARING
SILICIUMNITRID-SINTERKÖRPER, WÄLZKÖRPER DAMIT UND LAGER
CORPS FRITTÉ DE NITRURE DE SILICIUM, CORPS ROULANT L'UTILISANT, ET PALIER
NAKAMURA FUMIYA (Autor:in) / HAYAKAWA YASUTAKE (Autor:in)
23.10.2024
Patent
Elektronische Ressource
Englisch
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