|
个人信息Personal Information
副教授
博士生导师
硕士生导师
性别：女
毕业院校：中科院长春应用化学研究所
学位：博士
所在单位：材料科学与工程学院
学科：材料学
办公地点：大连理工大学三束实验室4号楼
联系方式：0411-84709784
电子邮箱：lijiayan@dlut.edu.cn
Hot-pressed Al2O3-SiC(-C) composites with polycarbosilane as the precursor
点击次数：
论文类型：期刊论文
发表时间：2010-03-01
发表刊物：MATERIALS & DESIGN
收录刊物：SCIE、EI、Scopus
卷号：31
期号：3
页面范围：1628-1632
ISSN号：0261-3069
摘要：The processing and mechanical behavior of Al2O3-xSiC (-C) (x = 1, 2, 5. 10 wt.%, ASx and ASCx) composites prepared by in situ reaction synthesis Sic from polycarbosilane (PCS) were investigated. The composites were densified by hot pressing. The pyrolysis process of PCS, microstructure, phase structure and mechanical properties of sintered composites were analyzed. Fully dense structure was obtained, and it was found that the fracture toughness and strength were highly improved compared with monolithic Al2O3. The fracture toughness reached 5.1 MPa m(1/2) in 1 wt.%SiC composite ASC1. AS1 showed 516 MPa of flexural strength. (C) 2009 Elsevier Ltd. All rights reserved.