Evaluation of High Temperature Interfacial Bonding Strength of Ti3SiC2-Al2O3 Joint in Air
The safety of Ti3 SiC2-Al2O3 joint is dependent on the interfacial bonding strength between Ti3SiC2 and Al2O3.In this work,the cross-section method was suggested to evaluate the tensile and shear bonding strength for Ti3SiC2-Al2O3 joint from room temperature to 800 ℃ in air.A novel testing fixture made of SiC was designed and machined to avoid the bending stress at the bonding surface during the testing process.The measured shear bonding strength is usually higher than tensile bonding strength for Ti3SiC2-Al2O3 joint.Both the tensile and shear bonding strength are decreased with the increment of testing temperatures.At 800 ℃,the tensile and shear bonding strength are declined to be about 43.15% and 45.02% compared with those at room temperature,relatively.The mechanism for the strong interface between Ti3SiC2 and Al2O3 is also discussed.
high temperature bonding strength cross section method Ti3SiC2-Al2O3joint testing fixture
D.T.Wan Y.W.Bao X.G.Liu Y.Tian R.R.Li
State Key Lab.of Green Building Materials,China Building Materials Academy,Beijing 100024,P.R.China; State Key Lab.of Green Building Materials,China Building Materials Academy,Beijing 100024,P.R.China;
国际会议
景德镇
英文
321-325
2012-10-15（万方平台首次上网日期，不代表论文的发表时间）