Concepts and Technology Development of Hinge Joints Operated Up To 1600°C in Air

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Abstract
The development of hot hinge joints requires suitable substrates and solid lubricant coatings. Promising coatings were selected based on an assessment of lubrication mechanisms. As a substrate, C/-SiC material is applied. Lack of literature data and test equipment make it necessary to investigate the selected materials experimentally with test rigs that have, in part, been specially developed for these purposes. The test program covers tests for material preselection, lubrication material characterization and feasibility tests on a hinge joint prototype. Regarding the operation conditions, the development of such hot hinge joints seems to be possible from the tribological point of view.