Abstract

The work showed that a change in the length of the samples within 60–100 mm and a width within 12–25 mm, as well as the shape of the samples, did not have a significant effect on the change in the mechanical characteristics when tested in compression in both directions of the UPA-4 material obtained by deposition of pyrolytic carbon from the gas phase on the warp made of graphite viscose fabric URAL-T-22. The carbon matrix of this material was formed as a result of the gradual deposition of pyrolytic carbon from the gas phase at a temperature of 980°C for ~150 h and at 1070°C for ~100 h. The paper presents the results of tests at different temperatures. Tests of flat specimens for bending, compression, and stretching were performed at room temperature. To assess the heat resistance of the material, samples were tested for bending in a neutral argon medium at a speed of active capture of 5 mm/min in a temperature range of 20–2800°C. The tests have shown that the developed material is structural and heat-resistant, since in the temperature range up to 2200°C it retains its bending strength, and as the temperature rises to 2500°C, it deforms with plasticity without breaking.

中文翻译：

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织物经纱上高温致密碳碳材料的物理和力学性能

摘要

这项工作表明，在测试时，样品长度在60–100 mm之内和宽度在12–25 mm之内的变化以及样品的形状对机械特性的变化均无显着影响。通过将气相的热解碳沉积在石墨粘胶织物URAL-T-22制成的经线上而获得的UPA-4材料的双向压缩。这种材料的碳基体是在980°C的温度下约150 h和1070°C的温度下约100 h从气相中逐渐沉积热解碳而形成的。本文介绍了在不同温度下的测试结果。在室温下对扁平样品进行弯曲，压缩和拉伸测试。为了评估材料的耐热性，在20-2800°C的温度范围内，样品在中性氩气介质中以5 mm / min的主动捕获速度进行了弯曲测试。测试表明，所开发的材料具有结构性和耐热性，因为在高达2200°C的温度范围内，它仍保持其弯曲强度，并且当温度升高至2500°C时，其可塑性变形而不会破裂。