Conductivity properties of β-SiAlON ceramics

被引：6

作者：

Dong PengLi ^{[1
]}

Wang XiDong ^{[2
]}

Zhang Mei ^{[3
]}

Seshadri, Seetharaman ^{[4
]}

机构：

[1] Chinese Soc Met, Beijing 100711, Peoples R China

[2] Peking Univ, Coll Engn, Beijing 100871, Peoples R China

[3] Univ Sci & Technol Beijing, Dept Phys Chem, Beijing 100083, Peoples R China

[4] Royal Inst Technol, Dept Mat Sci Engn, SE-10044 Stockholm, Sweden

来源：

SCIENCE CHINA-TECHNOLOGICAL SCIENCES | 2012年 / 55卷 / 09期

基金：

中国国家自然科学基金;

关键词：

beta-SiAlON; thermal diffusivity; heat capacity; effective thermal conductivity; EFFECTIVE THERMAL-CONDUCTIVITY; TEMPERATURE DEPENDENCES; GAS-PRESSURE; DIFFUSIVITY; POROSITY; REFRACTORIES; OXIDE;

D O I：

10.1007/s11431-012-4966-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The thermal diffusivity and heat capacity of beta-SiAlON 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 beta-SiAlON 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.

引用

页码：2409 / 2415

页数：7

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