Method for preparing alumina-based solid solution ceramic powder by using aluminum oxygen combustion synthesis water mist process

US11345642B2 · kind B2 · utility

Inventors

• Yongting Zheng · Jingwei, CN
• Yongdong Yu · Jingwei, CN
• Jinsong Jiang · Jingwei, CN
• Xiaoyue Su · Shanghai, CN
• Fengyu Lin · Jingwei, CN

Key dates

• Filing date: Aug 14, 2018
• Grant date: May 31, 2022
• Expiry date: Aug 19, 2038

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C04B2235/96
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Disclosed is a method for preparing an alumina-based solid solution ceramic powder by using an aluminum oxygen combustion synthesis water mist process, which comprises: drying raw materials and then mixing same until uniform to obtain a mixed material; loading the mixed material into a high-pressure reactor, igniting same in an oxygen-containing atmosphere, carrying out a high-temperature combustion synthesis reaction to form a high-temperature melt and then carrying out heat preservation for 1-60 s; and then opening a nozzle, ejecting the high-temperature melt through the nozzle and rapidly cooling same through a liquid phase, thus obtaining the alumina-based solid solution ceramic powder.