| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a raw material for an abrasive in which sintering is possible even if a roasting temperature is comparatively low in producing an abrasive and there is no fear of an abnormal grain growth. <P>SOLUTION: The mixed rare earth salt is produced by mixing a cerium-based rare earth carbonate and a cerium-based rare earth oxide, wherein the loss on ignition when heating at 1,000°C for one hour is in the range of 0.05-5.0% on the dry weight basis. The cerium-based abrasive raw material comprises the mixed rare earth salt as a principal component, wherein the loss on ignition when heating at 1,000°C for one hour is in the range of 0.05-5.0% on the dry weight basis. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
