A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
SILICON NITRIDE SINTERED BODY, MACHINE COMPONENT USING SAME, AND BEARING
To provide: a silicon nitride sintered body having excellent mechanical property and imparting superior lifetime to a product into which the silicon nitride sintered body is processed; a machine part using the silicon nitride sintered body; and a bearing. The silicon nitride sintered body: has the crystallinity of 75-90% calculated by the following formula based on an XRD diffraction pattern on a mirror-polished cutting face of the silicon nitride sintered body; contains one element or more of Y, Ce, Nd and Eu in an amorphous phase; and does not have an inclusion having a diameter of more than 50µm and a pore having a diameter of more than 50µm in a surface layer portion. Crystallinity (%) = Crystalline peak area/(Crystalline peak area + Amorphous peak area) × 100
SILICON NITRIDE SINTERED BODY, MACHINE COMPONENT USING SAME, AND BEARING
To provide: a silicon nitride sintered body having excellent mechanical property and imparting superior lifetime to a product into which the silicon nitride sintered body is processed; a machine part using the silicon nitride sintered body; and a bearing. The silicon nitride sintered body: has the crystallinity of 75-90% calculated by the following formula based on an XRD diffraction pattern on a mirror-polished cutting face of the silicon nitride sintered body; contains one element or more of Y, Ce, Nd and Eu in an amorphous phase; and does not have an inclusion having a diameter of more than 50µm and a pore having a diameter of more than 50µm in a surface layer portion. Crystallinity (%) = Crystalline peak area/(Crystalline peak area + Amorphous peak area) × 100
SILICON NITRIDE SINTERED BODY, MACHINE COMPONENT USING SAME, AND BEARING
SILICIUMNITRIDSINTERKÖRPER, MASCHINENKOMPONENTE DAMIT UND LAGER
CORPS FRITTÉ DE NITRURE DE SILICIUM, ÉLÉMENT DE MACHINE METTANT EN OEUVRE UN TEL CORPS FRITTÉ ET PALIER
NAKAMURA FUMIYA (author) / SATO NORIHIDE (author)
2024-12-04
Patent
Electronic Resource
English
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