Abstract

The antifriction properties have been determined experimentally for a carbon–carbon composite in the course of sliding friction against 40Kh13 steel in an environment of carbon dioxide. Changes in the friction coefficient upon heating to 800°C have been investigated in the velocity ranges from 0.05 to 0.25 m/s at a contact pressure ranging within 0.5–1 MPa. The novelty of the investigation consists in determining the tribotechnical properties of a little-studied friction pair that is promising for use in aerospace technology. Particular attention is paid to the tribotechnical properties of the friction pair at 500°C. Based on the studies, the friction coefficient is recommended for the design of plain bearings and hinges for spacecraft intended for operation in the atmosphere of Venus.

中文翻译：

---

温度对二氧化碳中碳-碳复合材料摩擦的影响

摘要

已经通过实验确定了碳-碳复合材料在二氧化碳环境下与40Kh13钢的滑动摩擦过程中的减摩性能。在接触压力为0.5-1 MPa的条件下，研究了加热至800°C时摩擦系数在0.05至0.25 m / s的速度范围内的变化。这项研究的新颖性在于确定了一个研究很少的摩擦副的摩擦技术特性，该摩擦副有望用于航空航天技术。特别要注意在500°C时摩擦副的摩擦学性能。基于这些研究，推荐摩擦系数用于打算在金星大气中运行的航天器的滑动轴承和铰链的设计。