Conductivity properties of β-SiAlON ceramics  

作　　者：DONG PengLi WANG XiDong ZHANG Mei SESHADRI Seetharaman 

机构地区：[1]The Chinese Society for Metals,Beijing 100711,China [2]College of Engineering,Peking University,Beijing 100871,China [3]Department of Physical Chemistry,University of Science and Technology Beijing,Beijing 100083,China [4]Department of Materials Science Engineering,Royal Institute of Technology,Stockholm SE 100-44,Sweden

出　　处：《Science China(Technological Sciences)》2012年第9期2409-2415,共7页中国科学（技术科学英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant No. 50332010);the National Basic Research Program of China ("973"Program)(Grant No. 2007CB613608);the National Science and Technology Supporting Program (Grant Nos. 2006BAC21B02-1,2007BAB24B03)

摘　　要：The thermal diffusivity and heat capacity of β-SiAION ceramics with different Z values （0.6, 1.5, 3.0） were measured by laser flash technique and differential scanning calorimetry （DSC）, respectively. The thermal conductivity of β-SiAION was calculated from thermal diffusivity, heat capacity and density and it decreased and then kept almost constant with increasing of temperature. Two different models representing effective thermal conductivity were established and the various parameters of these models were simulated based on the results from the present work. The fitted regression lines were in good agreement with the experimental values.

关 键 词：β-SiAION thermal diffusivity heat capacity effective thermal conductivity 

分 类 号：O657.99[理学—分析化学] TB332[理学—化学]