公开(公告)号：US20090196989A1

公开(公告)日：2009-08-06

申请号：US12365621

申请日：2009-02-04

申请人： Takeshi Katayama ,  Satoru Katsumata ,  Takayuki Hanami ,  Hironori Hatono ,  Masahiro Tokita ,  Hiroaki Ashizawa

发明人： Takeshi Katayama ,  Satoru Katsumata ,  Takayuki Hanami ,  Hironori Hatono ,  Masahiro Tokita ,  Hiroaki Ashizawa

IPC分类号： B05D1/36 ,  B26B9/00

CPC分类号： B24D99/00 ,  B26D1/0006 ,  B26D2001/002 ,  B28D1/121 ,  H01L21/67092

摘要： A sharp-edged blade of the invention includes a circular thin-plate-shaped abrasive grain layer 3 in which abrasive grains 2 are held in a bond phase 1. An oxide film manufactured by a sol-gel method is formed on the surface of at least the bond phase 1 of the abrasive grain layer 3 as a first protective layer 4. A thick oxide film which has polycrystals and is structured such that a grain boundary layer composed of a glass layer does not exist at an interface substantially between the crystals is formed on the surface of the first protective layer 4 as a second protective layer 5.

摘要翻译： 本发明的锋利刃片包括圆形的薄板状磨粒层3，磨粒2保持在粘结相1中。通过溶胶 - 凝胶法制造的氧化膜形成在表面上 至少作为第一保护层4的磨粒层3的结合相1.具有多晶体并且被构造成使得由玻璃层组成的晶界层在基本上在晶体之间的界面处不存在的厚氧化膜是 形成在作为第二保护层5的第一保护层4的表面上。