Analysis of internal friction on silicon nitride with visco-elastic model

被引：1

作者：

Sakaguchi, Shuji ^{[1
]}

机构：

[1] Natl Inst Adv Ind Sci & Technol, Res Inst Instrumentat Frontier, Moriyama Ku, Nagoya, Aichi 4638560, Japan

来源：

SCIENCE OF ENGINEERING CERAMICS III | 2006年 / 317-318卷

关键词：

internal friction; silicon nitride; viscosity; Maxwell model; relaxation time;

D O I：

10.4028/www.scientific.net/KEM.317-318.429

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Temperature dependence of internal friction on silicon nitride ceramics with yttria and alumina sintering aids was discussed using 4-elements visco-elastic model. It is known that the internal friction of this ceramic material shows a characteristic peak at around 1040 degrees C and an exponential increase over 1200 degrees C. This temperature dependence of internal friction was well approximated with using parallel Maxwell model. The parameters for this model and the relaxation time on this model were obtained. The relaxation time was very short, compared to the transient creep deformation of this ceramics. The analyzed results on internal friction could not be related with the creep deformation.

引用

页码：429 / 432

页数：4

共 4 条

[1]

Osswald T.A., 2003, MAT SCI POLYM ENG

[2] Internal friction under low-amplitude torsional and high-amplitude uniaxial load in silicon nitride [J].