无机材料学报Issue(8)：838-842,5.DOI:10.15541/jim20150002
校正缺口环法评价石英玻璃管的高温弹性模量
Evaluation of Elastic Modulus of Quartz Glass Tube at High Temperature by Modified Split Ring Method
摘要
Abstract
Quartz glass tubes are widely used in chemical, mechanical, optical, and other fields, especially for the cases of high temperature. However, scarcity of evaluation techniques of elastic modulus at high temperature causes a barrier for analysis of thermal stress and structure design. Although a split ring method has been used at room temperature, its application at high temperature is scarcely reported due to the difficulty of the deformation meas-urement. In this study, a combination of the split ring method and relative method was utilized to solve deformation measurement problem, thus evaluating the elastic modulus of quartz glass tubes at various temperatures. The results indicate that the elastic modulus datum increases from room temperature to 800℃, reaches the peak value of 87.20 GPa at 800℃, and then gradually decreases, and then sharply decreases when temperature higher than 1100℃. These re-sults demonstrate that the quartz glass tube measurement by improved split ring method for determining high-temperature elastic modulus is accurate and reliable, which could be used to evaluate other brittle tubes at high temperature.关键词
石英玻璃管/高温/弹性模量/缺口环/相对法Key words
quartz glass tube/high temperature/elastic modulus/split ring/relative method分类
化学化工引用本文复制引用
刘钊,包亦望,魏晨光,万德田..校正缺口环法评价石英玻璃管的高温弹性模量[J].无机材料学报,2015,(8):838-842,5.基金项目
国家自然科学基金(51172221,51472227) （51172221,51472227）
科技部重大仪器专项基金(2011YQ140145) National Natural Science Foundation of China (51172221,51472227) （2011YQ140145）
Major Program of Scientific Instrument and Equipment Development of China (2011YQ140145) （2011YQ140145）
