Magnesium-based raw material with low thermal conductivity and low thermal expansion and preparation method thereof

US11643364B2 · kind B2 · utility

Assignee

• WUHAN UNIVERSITY OF SCIENCE AND TECHNOLOGY · CN

Inventors

• Ao Huang · 红钢城街道, CN
• Yanzhu Huo · 红钢城街道, CN
• Huazhi Gu · 红钢城街道, CN
• Yongshun Zou · Hubei, CN
• Lvping Fu · 红钢城街道, CN
• Meijie Zhang · 安丰镇, CN

Key dates

• Filing date: Jun 12, 2021
• Grant date: May 9, 2023
• Expiry date: Jun 15, 2041

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C04B2235/9607
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The present disclosure relates to a magnesium-based raw material and a preparation method thereof. According to the technical solution, 40-60 wt % fused magnesia particles, 30-40 wt % fine monoclinic zirconia powder, 5-20 wt % fine zirconium oxychloride powder, 0.5-1.5 wt % calcium hydroxide nanopowder, 0.2-0.5 wt % calcium hydroxide nanopowder, and 0.1-0.3 wt % maleic acid are stirred for 15 min to mix well in a high-speed mixing mill at a constant temperature of 25° C. to obtain a mixed powder; and the mixed powder is mixed through a ball mill at a constant temperature of 25° C. for 3 min, roasted in a high temperature furnace at 250-400° C. for 0.5-3 h, and finally cooled to room temperature.