公开(公告)号：WO1996016138A1

公开(公告)日：1996-05-30

申请号：PCT/US1995010961

申请日：1995-08-30

Applicant: SAINT-GOBAIN/NORTON INDUSTRIAL CERAMICS CORPORATION

Inventor： SAINT-GOBAIN/NORTON INDUSTRIAL CERAMICS CORPORATION ,  GARG, A., K.

IPC: C09K03/14

CPC classification number: C04B35/624 ,  C04B35/1115 ,  C09K3/1418

Abstract: Alpha alumina abrasive grits with grain boundaries modified with at least one of yttria and a rare earth metal oxide, and one or more oxides selected from the oxides of magnesium and/or transition elements, perform at enhanced levels if at least the yttria and/or rare earth metal oxide modifiers are present within the body of the grit in concentrations at least as high as their concentrations at the surface of the grit.

Abstract translation: 具有用氧化钇和稀土金属氧化物中的至少一种修饰的晶界的α氧化铝磨粒和一种或多种选自镁和/或过渡元素的氧化物的氧化物，如果至少氧化钇和/或 稀土金属氧化物改性剂以至少与其在砂砾表面的浓度相同的浓度存在于砂砾体内。

公开(公告)号：EP0792331A1

公开(公告)日：1997-09-03

申请号：EP95930303.0

申请日：1995-08-30

Applicant: Saint-Gobain/Norton Industrial Ceramics Corporation

Inventor： GARG, A., K.

IPC: B24D3 ,  C01F7 ,  C04B35 ,  C09K3

CPC classification number: C04B35/624 ,  C04B35/1115 ,  C09K3/1418

Abstract: Alpha alumina abrasive grits with grain boundaries modified with at least one of yttria and a rare earth metal oxide, and one or more oxides selected from the oxides of magnesium and/or transition elements, perform at enhanced levels if at least the yttria and/or rare earth metal oxide modifiers are present within the body of the grit in concentrations at least as high as their concentrations at the surface of the grit.