前沿科学研究

高性能陶瓷与增材制造团队

High Performance Ceramics and Additive Manufacturing Research Group

YB2C2- a machinable layered ternary ceramic with excellent damage tolerance

发布日期:2023年11月22日
作者:高性能陶瓷与增材制造团队

Author:Guorui Zhao(一作), Jixin Chen, Yueming Li, Meishuan Li

Journal:Scripta Materialia

DOI:10.1016/j.scriptamat.2016.06.041

Abstract / 摘要

AbstractHigh purity bulk YB2C2, a member of ternary rare earth metal diborodicarbides, was synthesized by an in situ hot-pressing method using YH2, B4C, and graphite as initial materials. Physical and mechanical properties of YB2C2, such as Young”s modulus (207GPa), shear modulus (87GPa), bulk modulus (116GPa), Vickers hardness (4.2±0.3GPa), three-point flexural strength (460±10MPa), and fracture toughness (4.6±0.1MPa·m1/2) were characterized. The as-received YB2C2 ceramic possesses typical layered structure, excellent damage tolerance and easy machinability.;Graphical abstract [Display omitted]

Keyword / 关键词

YB2C2;Layered ceramic;Damage tolerance;Machinability