US 12,221,384 B2
Crack self-healing functionally gradient material for ceramic cutting tools and preparation method thereof
Chuanzhen Huang, Qinhuangdao (CN); Xinyao Cui, Jinan (CN); Hanlian Liu, Jinan (CN); Zhenyu Shi, Jinan (CN); Peng Yao, Jinan (CN); Xiaolan Bai, Jinan (CN); Zhen Wang, Qinhuangdao (CN); Longhua Xu, Qinhuangdao (CN); Dun Liu, Jinan (CN); Shuiquan Huang, Qinhuangdao (CN); Hongtao Zhu, Jinan (CN); and Bin Zou, Jinan (CN)
Assigned to SHANDONG UNIVERSITY, Jinan (CN); and YANSHAN UNIVERSITY, Hebei (CN)
Filed by SHANDONG UNIVERSITY, Shandong (CN); and YANSHAN UNIVERSITY, Hebei (CN)
Filed on Sep. 13, 2022, as Appl. No. 17/943,596.
Claims priority of application No. 2022102899312 (CN), filed on Mar. 23, 2022.
Prior Publication US 2023/0303453 A1, Sep. 28, 2023
Int. Cl. C04B 35/58 (2006.01); B26D 1/00 (2006.01); C04B 35/626 (2006.01); C04B 35/645 (2006.01)
CPC C04B 35/58021 (2013.01) [C04B 35/6261 (2013.01); C04B 35/6264 (2013.01); C04B 35/645 (2013.01); B26D 2001/002 (2013.01); C04B 2235/3843 (2013.01); C04B 2235/3886 (2013.01); C04B 2235/3891 (2013.01); C04B 2235/404 (2013.01); C04B 2235/405 (2013.01); C04B 2235/604 (2013.01); C04B 2235/6562 (2013.01); C04B 2235/6567 (2013.01); C04B 2235/75 (2013.01); C04B 2235/785 (2013.01); C04B 2235/786 (2013.01)] 9 Claims
 
1. A crack self-healing functionally gradient material for ceramic cutting tools, wherein the material takes titanium carbonitride as a matrix phase, tungsten-titanium carbide and titanium silicide as enhanced phases, and nickel and molybdenum as metal additive phases; the crack self-healing functionally gradient material for ceramic cutting tools has a symmetrical gradient layered structure, a content of titanium carbonitride increases gradually from a surface layer to a central layer, contents of tungsten-titanium carbide and titanium silicide decrease by 5% gradually from the surface layer to the central layer, and contents of nickel and molybdenum increase gradually from the surface layer to the central layer.