人工晶体学报2017，Vol.46Issue(5)：937-941,5.
BN织构陶瓷的制备与力学性能研究
Preparation and Mechanical Properties Investigation of Textured BN Ceramics
摘要
Abstract
On the basis of plate-like BN powder,textured BN ceramics were prepared by tape casting combined with hot-pressing technique.By means of XRD,SEM and universal mechanical tester, the structure, fracture surface morphology and mechanical properties of the BN ceramics were studied.Experimental results reveal that the BN grains exhibit preferred orientation along (002) plane.Textured BN ceramics show significantly anisotropic mechanical properties:when the loading direction perpendicular to the lamellar, bending strength and fracture toughness are respectively 53.75 MPa and 1.51 MPa·m1/2, which are superior to the mechanical properties in horizontal direction.Good performance in the vertical direction can be attributed to the crack deflection induced by plate-shaped particles.关键词
织构陶瓷/高取向度/BN/力学性能Key words
textured ceramics/highly oriented/BN/mechanical property分类
化学化工引用本文复制引用
周爱萍,于长新,魏春城,刘新超,李春龙,李培江..BN织构陶瓷的制备与力学性能研究[J].人工晶体学报,2017,46(5):937-941,5.基金项目
山东省自然科学基金(ZR2014JL032) （ZR2014JL032）
山东省高等学校科技项目(J16LA05) （J16LA05）
