Fused alumina-zirconia-titania composition and abrasive...

Details Fused alumina-zirconia-titania composition and abrasive... Fused alumina-zirconia-titania composition and abrasive...

C - Chemistry, Metallurgy

09

K

57/18

C09K 3/14 (2006.01) B24D 3/00 (2006.01)

Patent

CA 1163448

C8-9 FUSED ALUMINIA-ZIRCONIA ABRASIVE PRODUCT Abstract of the Disclosure An abrasive grain comprising 27 to 35% by weight of zirconia; titanium dioxide or a reduced form thereof in an amount on analysis expressed as the oxide of 1 to 10% by weight; impurities, if any, in a total mount on analysis expressed as the oxides of not greater than 3% by weight; and a balance of alumina. The microstructure of the abrasive grain comprises primary alumina crystals embedded in a supporting alumina-zirconia eutectic matrix. The grain may be produced by solidifying a melt of suitable composition in under three minutes by means of a suitable heat sink material. The abrasive grain may be used to produce coated abrasive products or bonded abrasive products.

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