Measurement of Thermal Expansion of Composites

刘金香; 高秀英; 郑全勤

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Measurement of Thermal Expansion of Composites

更新时间：2025-12-16

- Measurement of Thermal Expansion of Composites
- CIESC Journal Issue 2, (1982)
- 作者机构：
  
  中国科学院大连化学物理研究所,中国科学院大连化学物理研究所,中国科学院大连化学物理研究所
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 June 1982，
  
  Published：25 June 1982
- 稿件说明：
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刘金香, 高秀英, 郑全勤. Measurement of Thermal Expansion of Composites[J]. CIESC Journal, 1982, (2).
DOI：

刘金香, 高秀英, 郑全勤. Measurement of Thermal Expansion of Composites[J]. CIESC Journal, 1982, (2). DOI：

摘要

本文叙述了用日本岛津DT—2A型差热分析仪热膨胀附加装置测定固体物质热膨胀系数的方法。该膨胀计用纯铜（99.95%）在RT—900℃温度范围进行了标定、以求得仪器常数。用已知膨胀系数的Fe和Ni检验

其膨胀测量的准确度为±2.5%。通过线膨胀测量计算了石墨和玻璃钢两种复合材料的体膨胀率

并用曲线拟合法求得体膨胀率近似计算公式。

Abstract

Measurement of thermal expansion coefficients of solid materials with the thermal dilatometric attachment of Shimadzu DT-2A differential thermal analyser was described. The dilatometer was calibrated with pure copper (99.95%) in the temperature range of RT-900℃ in order to get the instrumental constant. By checking with Fe and Ni samples of known thermal expansion coefficients

the results obtained are found to be in agreement with those from the literature and the differences are less than ±2.5%. Volume expansion ratio of two composites

graphite and glass fibre reinforced plastics

can be calculated through the linear expansion measurements. Approximate equations for calculating volume expansion ratio by curve fitting method were also obtained.

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