Abstract—

This paper presents the results of tests of EPAN coatings, a composite material based on carbon–carbon fibers. It uses fine molybdenum disulfide as the main lubricant and for binders, phenol, peroxide, and silicone resins. The tests were carried out on microarc oxidation (MAO) coatings. For comparison, the tribological characteristics of EPAN under friction on steels, as well as molybdenum disulfide composites are given. The friction coefficients of EPAN coatings on MAO coatings according to the “shaft–bushing” scheme do not exceed 0.05 at pressures of 10–20 kg/cm² and shaft rotation speeds from 130 to 600 rpm. The advantage of such combinations of materials is the use of a light alloy, aluminum with MAO coating, for the counterbody to the EPAN coatings, which is important for space products. The creation and testing of solid lubricating coatings for modern space technology is a task of extreme importance, because in many developments of space products, low-temperature plastic lubricants continue to be used, which are operable up to subzero temperatures of –90 to –110°C. Such solutions require the use of thermal insulation and heating for mobile interfaces and friction units of machines, mechanisms, and devices. The result is a serious complication of structures and an increase in their weight. The tests of EPAN coatings on MAO coatings carried out in the work open new possibilities in the combination of materials for space technology. Having a coefficient of friction of 0.05 and high wear resistance, they allow you to create movable joints, first of all, sliding bearings, for operation on Earth sensing satellites, as well as mechanisms on the Moon.

中文翻译：

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适用于开放空间的摩擦涂层

摘要-

本文介绍了 EPAN 涂层（一种基于碳-碳纤维的复合材料）的测试结果。它使用细二硫化钼作为主要润滑剂，并用于粘合剂、苯酚、过氧化物和硅树脂。测试是在微弧氧化（MAO）涂层上进行的。为了进行比较，给出了 EPAN 与钢以及二硫化钼复合材料在摩擦下的摩擦学特性。^{根据“轴-衬套”方案，EPAN 涂层在 MAO 涂层上的摩擦系数在 10-20 kg/cm 2}压力和 130 至 600 rpm 轴转速下不超过 0.05 。这种材料组合的优点是使用轻合金，即带有 MAO 涂层的铝，作为 EPAN 涂层的反面，这对于航天产品非常重要。为现代航天技术创建和测试固体润滑涂层是一项极其重要的任务，因为在许多航天产品的开发中，继续使用低温塑料润滑剂，其工作温度可达–90至–110的零下温度。 °C。此类解决方案需要对机器、机构和设备的移动接口和摩擦单元使用隔热和加热。其结果是结构严重复杂化并且重量增加。这项工作中进行的 EPAN 涂层与 MAO 涂层的测试为空间技术材料的组合开辟了新的可能性。它们具有 0.05 的摩擦系数和高耐磨性，可让您创建可移动关节，首先是滑动轴承，用于地球传感卫星以及月球上的机构。