Cerium-based abrasive and production process thereof

Details Cerium-based abrasive and production process thereof Cerium-based abrasive and production process thereof

2005-08-16

2008-12-30

Marcheschi, Michael A (Department: 1793)

Abrasive tool making process, material, or composition

With inorganic material

C051S309000, C423S021100, C423S263000

Reexamination Certificate

active

07470297

ABSTRACT:
A mixed light rare earth compound which has been obtained by chemically removing medium-to-heavy rare earth elements, Nd and impurities other than rare earth elements from an ore containing rare earth elements is fired at 500 to 1100° C. to yield a mixed rare earth oxide. A cerium-based rare earth oxy-fluoride is added to the mixed rare earth oxide to obtain a mixture. The mixture is subjected to wet-pulverization, drying, firing, disintegration and classification to thereby yield a cerium-containing abrasive.

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Sabia, R, et al; “Performance Characterization of Cerium Oxide Abrasives for Chemical-Mechanical Polishing of Glass,”Machining Science and Technology4(2):235-251 (2000).
Sabia, R, et al; “Performance Characterization of Cerium Oxide Abrasives for Chemical-Mechanical Polishing of Glass”, Machining Science and Technology, vol. 4, No. 2, 2000, pp. 235-251.

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