
Production of composite based friction materials using waste GG25 casting material for safety clutches in aviation applications
Title:
Production of composite based friction materials using waste GG25 casting material for safety clutches in aviation applications
Author:
Çelik, Ceren, author.
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Physical Description:
xv, 75 leaves: charts;+ 1 computer laser optical disc
Abstract:
In the aviation sector, clutch linings, which provide efficient and safe transmission of power between aircraft engines and other components, have critical importance in terms of both performance and environment when produced using sustainable materials. The aim of this study is to develop composite clutch lining materials incorporating GG25 waste metal fibers, for use in aircraft clutch systems. Developed with a sustainable production approach, these linings support both material recycling and offer important advantages such as wear resistance. In this study, microstructure analyses, mineral phase analyses and thermal analyses were performed in order to obtain a detailed perspective on the raw materials used in commercial composite-based clutch linings. The components that constitute the composite friction material suitable for aviation applications were determined in line with the obtained characterization studies and the knowledge gained from the company R&D studies. Samples produced by powder metallurgy method were abraded with ball-on type abrasion tester and friction coefficient and abrasion resistance were determined. Optical microscope and SEM-EDS analysis images taken from the worn surfaces were evaluated. As a result of the evaluations, the samples using GG25 casting waste offer similar properties to steel in terms of friction coefficient and density but are behind in terms of hardness and wear resistance. These results reveal that recyclable casting waste can be successfully evaluated instead of expensive steel fibers. It is anticipated that the idle metal fibers can effectively provide the balance of friction, wear and cost and meet sufficient performance in standard applications.
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Thesis (Master)--İzmir Institute of Technology: Mechanical Engineering.
İzmir Institute of Technology: Mechanical Engineering--Thesis (Master).
Electronic Access:
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