| 摘要 |
<p>Dispersion of abrasive particles, pref. natural or synthetic diamond, ruby or sapphire, cubic BN, Al2O3, Cr2O3, Ce oxide, SiC, B carbide, diatomaceous or infusorial earths, and lubricant is encapsulated in microcapsules destructible under pressure. Capsules pref. contain diamond particles dispersed in lubricant, by treating diamond particles and lubricant with ultrasonic energy before encapsulating.</p> |
