Sintered zirconia mullite refractory composite, methods for its production and use thereof

US11208354B2 · kind B2 · utility

Assignee

• Imertech SAS · FR

Inventors

• Marie-Laure Bouchetou · Orléans, FR
• Olivier Joubert · Meylan, FR
• Jacques Poirier · Gatineau, CA
• Michael Weissenbacher · Innsbruck, AT

Key dates

• Filing date: Nov 3, 2016
• Grant date: Dec 28, 2021
• Expiry date: Nov 3, 2036

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C04B2235/9669
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The present invention relates to a zirconia mullite refractory composite comprising 55 wt.-% to 65 wt.-% Al2O3, 15 wt.-% to 25 wt.-% SiO2, 15 wt.-% to 25 wt.-% ZrO2 and less than 3 wt.-% raw material based impurities, whereby the mineralogical composition of the composite comprises 65 wt.-% to 85 wt.-% mullite and 15 wt.-% to 35 wt.-% zirconia.