Refined white ceramic material and method for preparing same

US9242901B2 · kind B2 · utility

Assignee

• THE 13TH RESEARCH INSTITUTE OF CHINA ELECTRONICS TECHNOLOGY GROUP CORPORATION · CN

Inventors

• Hongyu Zheng · Shijiazhuang, CN
• Pengyuan Shi · Shijiazhuang, CN
• Huajiang Jin · Shijiazhuang, CN
• Caihua Ren · Shijiazhuang, CN
• Bingqu Zhang · Shijiazhuang, CN
• Jinli Zhang · Shijiazhuang, CN

Key dates

• Filing date: Feb 17, 2012
• Grant date: Jan 26, 2016
• Expiry date: Mar 1, 2032

Classification

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

Abstract

Disclosed is a refined white ceramic material, which belongs to the field of ceramic materials for component packaging, and comprises the following raw materials by weight in percentage: aluminum oxide 87-93, magnesium oxide 0.8-5, silicon dioxide 1-6, calcium oxide 0.6-4, titanium dioxide 0.01-0.5, and zirconium dioxide 0.5-3. The method for preparing same comprises: (1) washing aluminum oxide grinding balls and a ball-milling tank, and drying for later use; (2) weighing a solvent NP-10 of 0.5-4 by weight in percentage, and adding the solvent into the ball-milling tank; (3) weighing raw materials, adding the raw materials into the ball-milling tank, and performing ball milling for 72±0.5 h. By means of the refined white ceramic material of the present invention, the obtained ceramic grains have even sizes, small surface roughness, and high fracture resistance performance of ceramic body.