HEAT-RESISTANT COATINGS AND PROSPECTS OF THEIR USE FOR PROLONGATION OF THE RESOURCE OF POWER EQUIPMENT (Review).

S. Kharchenko, S. Kovtun
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Abstract

An analysis of modern heat-resistant materials has been carried out, which contain refractory compounds of borides, nitrides, carbides with a limiting melting point of about 2000 °C. New approaches to obtaining heat-resistant materials and the results of studying their structure, phase composition, physical and mechanical properties are shown. For elements of power equipment, an effective and economically sound approach that has a significant effect is the use of heat-resistant coatings. Each heat-resistant covering and technology of its drawing is developed depending on conditions of its use, temperature modes of operation, ergonomic efficiency. The main method of increasing the operating temperature of the ceramic coating layer is to change the chemical composition of the ceramic by introducing an additional number of alloying rare earth elements. An important method of improving the quality of heat-resistant coatings is to optimize the thickness of the ceramic layer and the formation of a barrier microlayer at the interface.
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耐热涂料及其在延长电力设备资源中的应用前景(综述)。
对现代耐热材料进行了分析,这些材料含有硼化物、氮化物和碳化物的耐火化合物,其极限熔点约为2000℃。介绍了制备耐热材料的新方法以及耐热材料的结构、相组成、物理力学性能等方面的研究成果。对于电力设备的元件,使用耐热涂层是一种有效且经济合理的方法,具有显著的效果。每一种耐热外壳及其拉伸技术都是根据其使用条件、温度操作模式、人体工程学效率而开发的。提高陶瓷涂层工作温度的主要方法是通过引入额外数量的合金化稀土元素来改变陶瓷的化学组成。优化陶瓷层厚度和在界面处形成阻挡微层是提高耐热涂层质量的重要方法。
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