作者: Zihao Zhao , Min Niu , Hongjie Wang , Hongfei Gao , Kang Peng
DOI: 10.1016/J.JEURCERAMSOC.2018.12.027
关键词: Microstructure 、 Sintering 、 Porosity 、 Composite material 、 Spark plasma sintering 、 Grain size 、 Irradiation 、 Ceramic 、 Materials science 、 Nucleation
摘要: Abstract Bulk SiOC ceramics were prepared by spark plasma sintering of polymer-derived powders, and the effects ion irradiation on their microstructures properties investigated in detail. High temperature was conducive to low open porosity, high bulk density, nucleation growth β-SiC nanodomains, graphitization free carbon clusters ceramics. Ordering nanodomanins is beneficial for improving hardness modulus After 70 keV He irradiations, nanocrystals graphitic partially amorphized, average grain size decreased 13.6% 50.9%, respectively. But no bubbling or peeling occurred irradiated sample surface, barely changed, indicating are promising as radiation-tolerant materials.