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航空发动机部件典型非金属材料热分解温度与热膨胀系数的实验研究

Experimental Study on Thermal Decomposition Temperature and Thermal Expansion Coefficient of Typical Nonmetallic Materials in Aeroengine Components.

作者信息

Wu Bin, Wang Kai, Zeng Tai, Weng Wenguo, Xia Zuxi, Su Zhengliang, Xie Fei

机构信息

The Second Research Institute of CAAC, Chengdu 610041, China.

Key Laboratory of Aviation Fuel Airworthiness and Green Development of Civil Aviation, Chengdu 610041, China.

出版信息

Materials (Basel). 2025 Mar 12;18(6):1250. doi: 10.3390/ma18061250.

DOI:10.3390/ma18061250
PMID:40141533
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11943802/
Abstract

This paper aims to evaluate the thermal decomposition temperature and linear thermal expansion coefficient of typical non-metallic materials in aero-engine components. Thermogravimetric analysis and thermomechanical analysis were employed to systematically investigate the thermal and dimensional stability of these materials at varying heating rates, and their performance was validated through fireproof experiments. It was found that the high-strength graphite gasket exhibited the highest thermal decomposition temperature, while the polytetrafluoroethylene and fluorosilicone rubber showed excellent dimensional stability. Fluorine-based materials, such as fluorine rubber, showed higher thermal decomposition temperatures but relatively poor dimensional stability. This paper provides a scientific basis for the selection and design of sealing materials in aero-engines, contributing to the improvement of equipment safety and reliability.

摘要

本文旨在评估航空发动机部件中典型非金属材料的热分解温度和线性热膨胀系数。采用热重分析和热机械分析方法，系统研究了这些材料在不同加热速率下的热稳定性和尺寸稳定性，并通过防火实验验证了它们的性能。结果发现，高强度石墨垫片具有最高的热分解温度，而聚四氟乙烯和氟硅橡胶表现出优异的尺寸稳定性。氟橡胶等氟基材料具有较高的热分解温度，但尺寸稳定性相对较差。本文为航空发动机密封材料的选择和设计提供了科学依据，有助于提高设备的安全性和可靠性。

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Non-Linearity of Thermosetting Polymers' and GRPs' Thermal Expanding: Experimental Study and Modeling.热固性聚合物和玻璃纤维增强塑料热膨胀的非线性：实验研究与建模
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Thermal Decomposition of Brominated Butyl Rubber.溴化丁基橡胶的热分解
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The Toxicological Testing and Thermal Decomposition of Drive and Transport Belts Made of Thermoplastic Multilayer Polymer Materials.热塑性多层聚合物材料制成的传动带和输送带的毒理学测试与热分解
Polymers (Basel). 2020 Sep 28;12(10):2232. doi: 10.3390/polym12102232.
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Thermolysis of fluorinated single-walled carbon nanotubes: identification of gaseous decomposition products by matrix isolation infrared spectroscopy.氟化单壁碳纳米管的热解：通过基质隔离红外光谱法鉴定气态分解产物
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