Patent ID: 8025808
Filing Date: 2011-09-27
Classification: B24B,C09G

Abstract:
1. A method for machining a ceramic substrate containing Al, comprising: providing a solution containing a phosphorus compound in direct contact with the ceramic of the ceramic substrate, the ceramic of the ceramic substrate comprising Al, the phosphorus compound being an organophosphorus compound, abrasive particles present in the solution as free abrasives, forming a slurry; and machining the substrate with the abrasive particles, wherein a ratio MRR wherein the organophosphorus compound is selected from the group consisting of hydroxy phosphono acetic acid, aminotri-(methylenephosphonic acid), hexapotassiumhexamethylenediaminetetra-(methylenephosphonic acid), 2-phosphonobutane-1,2,4-tricarboxylic acid, phosphate acid ester of ethoxylated phenol, and hydroxyethylidinediphosphonic acid.