Fused grains of oxides comprising Al, Ti, Si and ceramic products comprising such grains

US8557010B2 · kind B2 · utility

Assignee

• SAINT-GOBAIN CENTRE DE RECHERCHES ET D'ETUDES EUROPEEN · FR

Inventor

• Stephane Raffy · Briançon, FR

Key dates

• Filing date: Jun 25, 2010
• Grant date: Oct 15, 2013
• Expiry date: Jul 8, 2030

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F01N3/2828
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Fused particles containing, by weight percent: more than 15% but less than 55% of Al2O3; more than 20% but less than 45% of TiO2; more than 3% but less than 30% of SiO2; less than 20%, in total, of at least one oxide selected from the group consisting of ZrO2, Ce2O3, and HfO2; less than 1% of MgO; and more than 1% but less than 15%, in total, of at least one selected from the group consisting of CaO, Na2O, K2O, SrO, B2O3, and BaO. Also, a ceramic product or material obtained by sintering the fused particles.