Fused alumina/zirconia grain mixture

US8551203B2 · kind B2 · utility

Assignee

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

Inventors

• Samuel Marlin · Cavaillon, FR
• David Langohr · Conflans-Sainte-Honorine, FR
• Anthony C. Gaeta · Lockport, US

Key dates

• Filing date: Mar 11, 2010
• Grant date: Oct 8, 2013
• Expiry date: Apr 29, 2030

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C04B2235/80
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A molten alumina/zirconia grain mixture having the following chemical composition, in wt %: ZrO2+HfO2: 35 to 45.5%; Al2O3: 43.7 to 65%; other oxides: <10%; SiO2: <0.8%, which simultaneously adheres to a granulometric condition and to a densimetric condition.