Finite Element Modeling of Temperature Distribution in Spark Plasma Sintering
A finite element model (FEM) is developed to simulate the temperature distribution in the sample/die/punch assembly during the spark plasma sintering (SPS) process.A thermal-electrical coupled model with temperature dependent thermal and electrical properties is implemented.The simulation studies were conducted using COMSOL and a range of heating-rates and die sizes were considered.Also,both temporary and equilibrium condition during heating process were evaluated in order to express the real temperature development in the sintering.During the spark plasma sintering process,the temperature difference between the sample center and the die surface depend on the heating-rate and die size.The simulation results also revealed that the temperature gradient during the heating process is much bigger than that in the dwelling period.It is necessary to consider the temporary state during the spark plasma sintering process in order to guarantee a well-controlled microstructure,especially in non-conductive ceramic materials.
Spark plasma sintering Finite element model Temperature distribution
Cao Wang Zhe Zhao Laifei Cheng
National Key Laboratory of Thermostructure Composite Materials, Northwestern Polytechnical Universit Department of Inorganic Chemistry, Arrhenius Laboratory, Stockholm University, Stockholm S-10691, Sw National Key Laboratory of Thermostructure Composite Materials, Northwestern Polytechnical Universit
国际会议
The Sixth China International Conference on High-Performance Ceramics(第六届中国先进陶瓷国际研讨会(CICC-6))
哈尔滨
英文
808-813
2009-08-16（万方平台首次上网日期，不代表论文的发表时间）