High-resolution methods for measuring the thermal expansion coefficient of aerospace materials

Gregory Wallace; William Speer; J. Ogren; Omar S. Es-Said

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High-resolution methods for measuring the thermal expansion coefficient of aerospace materials

机译：测量航空航天材料热膨胀系数的高分辨率方法

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摘要

Accurately predicting the coefficient of thermal expansion for many aerospace components is critical to ensure proper functionality on orbit where the temperature gradient across a spacecraft can vary from +300 °F to −450 °F. Under these conditions, the linear approximations generated by theoretical equations no longer hold true, and experimental methods are needed. Although several methods exist for measuring the coefficient of thermal expansion of materials, laser interferometry yields high-resolution results, and the technique is widely accepted in the scientific community.

机译：准确预测许多航空航天部件的热膨胀系数对于确保轨道上的适当功能至关重要，因为在该轨道上，航天器上的温度梯度可能在+300°F至-450°F之间变化。在这种情况下，由理论方程式生成的线性近似值不再成立，需要实验方法。尽管存在几种测量材料的热膨胀系数的方法，但是激光干涉仪可以产生高分辨率的结果，并且该技术在科学界已被广泛接受。

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来源
《Journal of Materials Engineering and Performance》 |2005年第5期|563-564|共2页
作者
Gregory Wallace; William Speer; J. Ogren; Omar S. Es-Said;
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作者单位

Mechanical Engineering Department Loyola Marymount University 7900 Loyola Blvd 90045-8145 Los Angeles CA;

Mechanical Engineering Department Loyola Marymount University 7900 Loyola Blvd 90045-8145 Los Angeles CA;

Mechanical Engineering Department Loyola Marymount University 7900 Loyola Blvd 90045-8145 Los Angeles CA;

Mechanical Engineering Department Loyola Marymount University 7900 Loyola Blvd 90045-8145 Los Angeles CA;

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原文格式 PDF
正文语种 eng
中图分类
关键词
coefficient of thermal expansion (CTE); cryogenic; experimental methods; extreme temperatures; isotropic; material properties;

机译：热膨胀系数（CTE）;低温;试验方法;极限温度;各向同性;材料性能;

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专利

1. High-Resolution Methods for Measuring the Thermal Expansion Coefficient of Aerospace Materials [J] . Gregory Wallace, William Speer, J. Ogren Journal of Materials Engineering and Performance . 2005,第5期

机译：测量航空材料热膨胀系数的高分辨率方法
2. Interference dilatometers for measuring the thermal coefficient of linear expansion of thermally stable optical materials [J] . Sharov A.A., Galyavov I.R., Patrikeev A.P., Journal of optical technology . 2013,第4期

机译：干涉膨胀仪，用于测量热稳定光学材料的线性膨胀的热系数
3. Development of Methods for Determining the Coefficients of Linear Thermal Expansion for End Measures of Length [J] . Bashevskaya O. S., Bushuev S. V., Poduraev Yu. V., Measurement techniques . 2015,第6期

机译：确定长度热度的线性热膨胀系数的方法的发展
4. The JPL Cryogenic Dilatometer: Measuring the Thermal Expansion Coefficient of Aerospace Materials [C] . P. G. HALVERSON, T. J. PARKER, P. KARLMANN, International Thermal Expansion Symposium . 2008

机译：JPL低温膨胀仪：测量航空航天材料的热膨胀系数
5. Machinability by Electrical Discharge Machining of Low Coefficient of Thermal Expansion Aluminum Alloys for Space Application =étude de l’usinabilité par électroérosion des alliages d’aluminium à faible coefficient de dilatation thermique pour application [D] . Bédard, Frédéric . 2018

机译：用于空间应用的低热膨胀铝合金的低热量铝合金的电气放电加工=高热扩张系数铝合金应用的电气化Usility
6. Correction: A Novel Method for Measuring the Diffusion Partition and Convective Mass Transfer Coefficients of Formaldehyde and VOC in Building Materials [O] . Jianyin Xiong, Shaodan Huang, Yinping Zhang -1

机译：校正：一种测量建筑材料中甲醛和VOC扩散分配和对流传质系数的新方法
7. Coefficients of thermal expansion of single crystalline β-Ga2O3 and in-plane thermal strain calculations of various materials combinations with β-Ga2O3 [O] . Michael E. Liao, Chao Li, Hsuan Ming Yu, 2019

机译：单晶β-GA2O3的热膨胀系数和各种材料与β-GA2O3组合的面内热应变计算
8. A Dilatometer for Measuring Transition Temperatures and Thermal Cubic Coefficients of Expansion in Polymers [R] . Ezell, R. 1972

机译：用于测量聚合物中转变温度和热立方系数的膨胀计

High-resolution methods for measuring the thermal expansion coefficient of aerospace materials

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