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公开(公告)号：US06884386B2
公开(公告)日：2005-04-26
申请号：US10381016
申请日：2001-09-20
Applicant: Hiroyasu Saka , Syoji Uchimura , Hideki Morimitsu
Inventor： Hiroyasu Saka , Syoji Uchimura , Hideki Morimitsu
CPC classification number: C04B41/009 , C04B41/53 , C04B41/91 , C04B41/0072 , C04B35/10 , C04B35/00 , C04B35/584 , C04B35/581
Abstract: When a sintered body of ceramic is shot-blasted at normal temperatures to plastically deform the crystal structure of the shot-blasted surface to apply residual stress and is heat-treated to recrystallize fine cracks, dislocated cells in the grain boundary are formed, crystals are finely divided, and the fracture toughness is significantly improved. When the sintered body of ceramic is a thin product, an effective toughening can be attained by shot blasting both the front and back sides. After heat treatment, mechanical strength is significantly improved by removing a part of the modified surface layer by an abrasion treatment.
Abstract translation: 当陶瓷烧结体在正常温度下进行喷丸处理以使喷丸表面的晶体结构发生塑性变形，从而施加残余应力，进行热处理，使细小裂纹再结晶，形成晶界位错细胞 细碎，断裂韧性明显提高。 当陶瓷的烧结体是薄的产品时，可以通过对前侧和后侧进行喷丸来实现有效的增韧。 热处理后，通过磨损处理除去一部分改性表面层，显着提高机械强度。
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公开(公告)号：US06663828B2
公开(公告)日：2003-12-16
申请号：US10024264
申请日：2001-12-21
Applicant: Koji Watari , Mamoru Aizawa , Syoji Uchimura , Hirohide Ishiguro , Hideki Morimitsu
Inventor： Koji Watari , Mamoru Aizawa , Syoji Uchimura , Hirohide Ishiguro , Hideki Morimitsu
IPC: B22F312
CPC classification number: B22F3/14 , B22F2999/00 , C04B35/111 , C04B35/468 , C04B35/622 , C04B35/64 , F27B17/0016 , F27B21/00 , F27D2003/0077 , F27D2003/0087 , F27D2007/063 , F27D2007/066 , F27D2019/0025 , F27D2019/0059 , B22F3/06
Abstract: A method and an apparatus for sintering a compact of particulate material for a ceramic or of particles of a metal, or a ceramic precursor film, wherein the sintering is performed by heating and burning the compact or the ceramic precursor film while applying centrifugal force to the compact or the ceramic precursor film.
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