High strength transparent ceramic using corundum powder and methods of manufacture

US9527774B2 · kind B2 · utility

Assignees

• King Abdulaziz City for Science and Technology · SA
• FRAUNHOFER-GESELSCHAFT · DE

Inventors

• Mohammed A. Binhussain · Riyadh, SA
• Akeel Khalid Alakeel · Riyadh, SA
• Majid Mohammed Binmajid · Riyadh, SA
• Jens Klimke · Bocholt, DE

Key dates

• Filing date: Aug 27, 2014
• Grant date: Dec 27, 2016
• Expiry date: Aug 27, 2034

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C04B2235/9661
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

High strength transparent corundum ceramics using corundum powder and methods of manufacture are disclosed. The method of forming transparent corundum ceramics includes milling corundum powder in aqueous slurry with beads. The method further includes processing the slurry by a liquid shaping process to form a gelled body. The method further includes sintering the gelled body in air and pressing the gelled body by hot isostatic pressing to form a ceramic body.