摘要
用放电等离子体烧结(SPS)制备了ZrB2-30%SiC复合陶瓷材料,在万能力学试验机上测试陶瓷材料的弯曲强度和断裂韧性,用SEM观察陶瓷材料的断口形貌,并分析材料的断裂机制。结果表明ZrB2-SiC复合陶瓷的弯曲强度为743MPa,断裂韧性为6.5MPa·m1/2;断裂机制主要是沿晶断裂和穿晶断裂的混合机制。
ZrB2-30% SiC composite ceramics were prepared by spark plasma sintering technique （SPS）. The flexure strength and fracture toughness were tested by omnipotence mechanics tester. The fracture morphology of the samples was examined by SEM and their fracture mechanism was analyzed. The results show that the average flexural strength is 743 MPa, and the average fracture toughness is 6.5 MPa.m^1/2. The fracture mechanism is both transgranular fracture and intergranular fracture.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2007年第A01期798-800,共3页
Rare Metal Materials and Engineering
