Design and optimization of TiB 2 ‐based ceramic tool materials based on fuzzy theory

作者：Dong Wang, Jingyang Bao, Zhao Bo, Zhengwei Ding, Guangping Zheng · 发表于：International Journal of Applied Ceramic Technology · 年份：2024 · DOI：10.1111/ijac.14672 · 被引用次数：5 · 研究领域：Technology and Human Factors in Education and Health、Advanced Technology in Applications、AI and Big Data Applications

Abstract Based on the material properties and fuzzy theory, a new design method of TiB 2 ‐based composite ceramic tool material was proposed, and the TiB 2 ‐based composite ceramic tool material with excellent friction and wear resistance was designed. Initially, the fuzzy evaluation method was used to establish the matrix of the friction and wear resistance of the material, and the TiB 2 ‐based material component with excellent friction and wear resistance was determined. Ultimately, based on the principle of fuzzy cognitive map, the correlation mapping of “sintering process–microstructure–mechanical properties” was established, and the composition ratio and sintering process were optimized. The results show that the TiB 2 –TaC–TiC ceramic tool material had excellent friction and wear resistance. When the volume content of TaC was 8 vol.%, the volume content of TiC was 20 vol.%, the heating rate was 100°C/min, the holding time was 8 min, the sintering temperature was 1600°C, and the sintering pressure was 50 MPa, the mechanical properties were hardness 23.5 GPa, bending strength 438 MPa, and fracture toughness 10.26 MPa∙m 1/2 .