Author: B. S. Phillipsa, J. S. Zabinskib
Institute: Systran Federal Corp. 4027 Colonel Glenn Highway, Air Force Research Laboratories, Materials and Manufacturing Directorate, Nonmetallic Materials Division.
Temperature plays an important role in the friction process of quasicrystals, since it can change their structural and physical properties. Research shows that at high temperatures, friction of quasicrystals occurs mainly in two modes: amorphous and crystalline.
The amorphous friction mode is characterized by the absence of a clear and ordered structure of the quasicrystal surface. In this case, the molecules of the material are arranged in a random order, which contributes to high friction between the surfaces. As a result of this process, friction of quasicrystals at high temperatures can lead to their mechanical wear and destruction.
The crystalline friction mode, on the contrary, is characterized by the presence of a clear and ordered structure of the quasicrystal surface. In this mode, the molecules are arranged in a certain order, forming a crystal lattice. As a result of this process, the friction of quasicrystals at high temperatures is significantly reduced, which helps to increase the wear resistance of the material.
The main factor influencing the friction characteristics of quasicrystals at high temperatures is the temperature dependence of their physical properties, such as the coefficient of friction, hardness and strength. With increasing temperature, these properties can change, which affects the friction efficiency and wear of the material.
To more accurately determine the friction characteristics of quasicrystals at high temperatures, various experiments and studies are being carried out. One of them is to measure the coefficient of friction at different temperatures using special test benches. Studies of the friction surface are also carried out using scanning electron microscopy and X-ray diffraction analysis.
As a result of these studies, it becomes possible to determine the optimal conditions for friction of quasicrystals at high temperatures, as well as to develop new materials and coatings that have better friction and wear resistance characteristics. Such materials can be used in various industries, such as the aviation and automotive industries, where the friction of quasicrystals at high temperatures can play an important role in improving the efficiency and durability of mechanisms and parts.