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US 5,336,280 AGranted
Abrasive and/or refractory products based on melted and solidified oxynitrides and process preparing the same
AssigneePechiney Electrometallurgie
InventorsDominique Dubots, Pierre Faure
Life of this patent
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Abstract
Abrasive and/or refractory products comprising at least one compound from the group of oxynitrides of one or more metals or metalloids (such as Al, Mg, alkaline earth metals, Si, Ti or Zr) and obtained by melting and solidification.
Claims7
An abrasive or refractory product consisting of at least one oxynitride of at least one metal or metalloid selected from the group consisting of Al, Mg, Ca, Sr, Ba, Ti, Zr and B and mixtures thereof, and made according to the following process:
- (a) providing a solid charge material consisting of at least one compound of said metal or metalloid, said compound containing oxygen and nitrogen and selected from oxides, nitrides and oxynitrides;
- (b) heating said charge material to a temperature high enough to form a molten mass of said charge material;
- (c) cooling the resulting molten mass to a temperature low enough to solidify said mass;
- and,
- (d) forming an abrasive or refractory product from the resulting cooled mass of charge material.
2 more elements
Dependencies are inferred from the claim text.