Development of Porous Material with High Youngs Modulus and Low Thermal Ezpansion Coefficient in SiC-Vitrified Bonding MateriaI-LiAlSiO System

摘要：

Machines for manufacturing large scale flat displays are enlarging as the size of glasses increases. This work develops porous materials with a low thermal expansion coefficient and a high Youngs modulus. SiC and LiAlSiO4 were used for a positive and a negative thermal expansion materials, respectively. Compositions of powders for porous materials were determined to obtain a desirable Youngs modulus and thermal expansion coefficient by using SiC-VBM-LiAlSiO4 phase diagram at 20 % of porosity. The empirical values of Youngs modulus and a thermal expansion coefficient are close to the theoretical values by using the diagram. Fabricated porous material had high enough Youngs modulus of 87 GPa, and low enough thermal expansion coefficient of 2×10-6 K-1 at temperatures ranging from -17 ℃ to 190℃ with 22 % of porosity.

关键词： LiAliO4 SiC Porous material Low thermal ezpansion High Youngs modulus

作者: Tatsuya Ono Koji Matsumaru Isaias Juarez-Ramirez Leticia M.Torres-Martinez Kozo Ishizaki

作者单位: Nagaoka University of Technology,Nagaoka, Niigata 940-2188, Japan Nagaoka University of Technology, Nagaoka, Niigata 940-2188, Japan Universidad Autonoma de Nuevo Leon, Av.Universidad s/n, San Nicolas de los Garza, NL,C.P.66451, Mexi

会议类型: 国际会议

会议名称: 10th International Symposium on Eco-Materials Processing and Design(第10届国际生态材料加工与设计研讨会)

会议地点: 西安

会议语种:英文

页码: 715-718

在线出版日期: 2009-01-13（万方平台首次上网日期，不代表论文的发表时间）