標題: INSITU REACTED TIB2-REINFORCED ALUMINA
作者: CHUANG, SC
KUO, CT
HO, CT
LI, AK
機械工程學系
Department of Mechanical Engineering
公開日期: 15-Nov-1992
摘要: In situ formation of TiB2 in Al2O3 matrix through the reaction of TiO2, boron and carbon has been studied. In hot-pressed samples, in addition to TiB2, TiC and Al2TiO5, were also found to be dispersed phases in Al2O3 matrix. However, in the case of pressureless-sintered samples, pure Al2O3/TiB2 composite with > 99% relative density can be obtained through a preheating step held at 1300-degrees-C for longer than 30 min and then sintering at a temperature above 1500-degrees-C. Pressureless-sintered composite containing 20 vol % TiB2 gives a flexural strength of 580 MPa and a fracture toughness of 7.2 MPa m1/2.
URI: http://dx.doi.org/10.1007/BF01133773
http://hdl.handle.net/11536/3234
ISSN: 0022-2461
DOI: 10.1007/BF01133773
期刊: JOURNAL OF MATERIALS SCIENCE
Volume: 27
Issue: 22
起始頁: 6213
結束頁: 6218
Appears in Collections:Articles