摘要
采用数值模拟的方法,对梯度功能材料在第二边界条件下温度场进行了分析,并根据所建立的数值方法对新研制的C/C/Al2O3炭陶梯度功能材料和C/C材料进行了比较,对具有不同组分分布曲线的梯度功能材料进行了比较。结果表明,C/C/Al2O3炭陶梯度功能材料的绝热性能优于C/C材料,可通过改变C/C/Al2O3炭陶梯度功能材料的组分分布,优化其内部的温度场分布。
The one-dimensional thermal field with time-variable heat flux of functionally gradient materials (FGM) was numerical simulated. By using the numerical simulation method , CCAl2O~3, a novel FGM of carbon-ceramic, was compared with CC material. Various CCAl2O3 materials with different composition mass fraction functions were compared . The results show that the heat-resistant performance of CCAl2O3 is better than that of CC, therefore the thermal field of FGM of carton ceramic can be optimized by changing its compositions mass fraction functions.
出处
《固体火箭技术》
EI
CAS
CSCD
北大核心
2004年第2期145-148,共4页
Journal of Solid Rocket Technology
基金
国家自然科学基金资助项目:炭陶功能梯度材料烧蚀和热防护机理研究(50276056)。
关键词
梯度功能材料
温度场
数值模拟
第二边界条件
functionally gradient materials
thermal field
numerical simulation
time-variable heat flux
