摘要
采用示差法、示差扫描量热法、超声共振法和激光脉冲法,分别测量了Ag-15wt%In-5wt%Cd合金在300℃以下的热膨胀系数、比热容、杨氏模量、热扩散率和热导率。测量结果表明:在20～300℃温度范围内,随着温度的升高,合金的线热膨胀系数增加,20～300℃合金的平均线热膨胀系数为23.2610-6℃-1;300℃以下,合金的比热容随温度变化不大,其平均比热容为0.2583J/g℃;合金的杨氏模量随温度的升高而下降,热扩散率和热导率随温度升高而升高,300℃时合金的杨氏模量、热扩散率和热导率分别为66.2GPa、0.30810-4m2/s和0.836 W/m℃。
The thermal expansion, specific heat, young抯 modulus, thermal diffusivity and conductivity have been measured by differential methods, differential scanning calorimeter, resonance method and laser bombard method in this work. The results are shown as follows: linear thermal expansion coefficient of alloy increases with the increase of temperature, which is 23.2610-6℃-1 from 20℃ to 300℃; specific heat has little change below 300℃; average specific heat is 0.2583 J/g℃; young抯 modulus decrease with the increase of temperature, and thermal diffusivity and conductivity increase with the increase of temperature, which are 6.2GPa, 0.30810-4m2/s and 0.836 W/m·℃ at 300℃, respectively.
出处
《核动力工程》
EI
CAS
CSCD
北大核心
2004年第6期522-524,533,共4页
Nuclear Power Engineering
