	US 12,391,618 B2
	Method for preparing infrared radiation ceramic material
Heping Zeng, Chongqing (CN); Mengyun Hu, Chongqing (CN); and Shencheng Shi, Chongqing (CN)
Assigned to YUNNAN HUAPU QUANTUM MATERIAL CO., LTD, Yunnan (CN); ROI OPTOELECTRONICS TECHNOLOGY CO, LTD., Shanghai (CN); CHONGQING INSTITUTE OF EAST CHINA NORMAL UNIVERSITY, Chongqing (CN); and EAST CHINA NORMAL UNIVERSITY, Shanghai (CN)
Filed by Yunnan Huapu quantum Material Co., Ltd, Yunnan (CN); ROI Optoelectronics Technology CO, LTD., Shanghai (CN); Chongqing Institute of East China Normal University, Chongqing (CN); and East China Normal University, Shanghai (CN)
Filed on Mar. 24, 2022, as Appl. No. 17/703,052.
Claims priority of application No. 202110310159.3 (CN), filed on Mar. 24, 2021.
Prior Publication US 2022/0306540 A1, Sep. 29, 2022
Int. Cl. C04B 35/00 (2006.01); C04B 35/26 (2006.01); C04B 35/645 (2006.01); C04B 35/65 (2006.01); C04B 35/66 (2006.01); C04B 35/74 (2006.01); C04B 41/00 (2006.01); C04B 35/626 (2006.01)

CPC C04B 35/265 (2013.01) [C04B 35/645 (2013.01); C04B 41/0036 (2013.01); C04B 41/0063 (2013.01); C04B 35/6261 (2013.01); C04B 2235/3267 (2013.01); C04B 2235/3274 (2013.01); C04B 2235/3281 (2013.01); C04B 2235/5436 (2013.01); C04B 2235/5445 (2013.01); C04B 2235/658 (2013.01); C04B 2235/665 (2013.01)]

20 Claims

1. A method for preparing an infrared radiation ceramic material, comprising: mixing and ball milling raw materials of Fe₂O₃, MnO₂and CuO in a mass ratio of x:(9-y):y to obtain a mixed powder, where 0<x<9, and 0<y<9; pressing the mixed powder; irradiating or sintering by a first laser with a first irradiating parameter the pressed mixed powder in a first crucible for a solid-phase reaction to obtain an AB₂O₄type ferrite powder; obtaining a first mixture by mixing the AB₂O₄type ferrite powder and a cordierite powder in a mass ratio of m:(100-m), where 0<m<100, and adding 0 to 5% of each of a sintering aid and a nucleating agent based on a total mass percent of the raw materials material for ball milling; obtaining a second mixture by mixing the first mixture with 1% to 5% of a binder based on the total mass percent of the raw materials and aging for 10 h or more; pressing the second mixture; and irradiating or sintering by a second laser with a second irradiating parameter the pressed second mixture in a second copper crucible for a solid-phase reaction to obtain the infrared radiation ceramic material, wherein each of the first irradiating parameter and the second irradiating parameter comprises at least one of laser spot, laser power and laser sintering time.