Push-rod dilatometer calibration and thermal expansion coefficient measurement of standard material

IF 1.1 4区工程技术 Q4 Engineering

High Temperatures-high Pressures Pub Date : 2021-01-01 DOI:10.32908/hthp.v50.1075

Joo-Chul Lee, Daeho Kim

引用次数: 0

Abstract

The linear thermal expansion coefficient (LTEC) is a very important thermal property in the field of length standard, precision engineering and novel material science. There are several methods in measuring the LTEC of a material and the push-rod type is a one of the frequently used method. In this work, the calibration and the measurement procedures of the SRM 736 which is a certified material provided from NIST are carried out with push-rod type dilatometer (Dil402, NETZSCH) and the results are presented in the temperature range from 300°C to 500°C. The calibration of thermocouple and a linear variable differential transformer (LVDT) sensor have been performed with the melting point of the pure metals and the calibration device consisting of the rod and micrometer provided from the NETZSH.

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推杆式膨胀计校准及标准材料热膨胀系数测量

线性热膨胀系数(LTEC)在长度标准、精密工程和新材料科学等领域是一项非常重要的热性能。测量材料LTEC的方法有很多种，推杆法是常用的一种方法。在这项工作中，SRM 736是NIST提供的认证材料，使用推杆式膨胀计(Dil402, NETZSCH)进行校准和测量程序，结果显示在300°C至500°C的温度范围内。用纯金属的熔点和NETZSH提供的由棒和千分尺组成的校准装置对热电偶和线性可变差动变压器(LVDT)传感器进行了校准。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

High Temperatures-high Pressures THERMODYNAMICS-MECHANICS

CiteScore

1.00

自引率

9.10%

发文量

期刊介绍： High Temperatures – High Pressures (HTHP) is an international journal publishing original peer-reviewed papers devoted to experimental and theoretical studies on thermophysical properties of matter, as well as experimental and modelling solutions for applications where control of thermophysical properties is critical, e.g. additive manufacturing. These studies deal with thermodynamic, thermal, and mechanical behaviour of materials, including transport and radiative properties. The journal provides a platform for disseminating knowledge of thermophysical properties, their measurement, their applications, equipment and techniques. HTHP covers the thermophysical properties of gases, liquids, and solids at all temperatures and under all physical conditions, with special emphasis on matter and applications under extreme conditions, e.g. high temperatures and high pressures. Additionally, HTHP publishes authoritative reviews of advances in thermophysics research, critical compilations of existing data, new technology, and industrial applications, plus book reviews.