Sample-free measurement of linear thermal expansion coefficient of aluminum-matrix composites using speckle-interferometry method

Авторы: Popov A.L., Mironenko V.N., Kozintsev V.M., Chelyubeev D.A., Murashkin E.V., Chentsov A.V., Vasenev V.V., Chervonobrodov S.P.
Сборник: Proceedings of The World Congress on Engineering 2018, 4-6 July, 2018, London, U.K
Серия: Lecture Notes in Engineering and Computer Science
Год издания: 2018
Место издания: IAENG London, U.K
Первая страница: 767
Последняя страница: 772
Аннотация: A sample-free method for determination of the linear thermal expansion coefficient (LTEC) and the speckleinterferometer setup are developed. The method and setup were evaluated using samples from a material with known LTEC value. The method is applied to LTEC measurement for AM fabricated aluminum-matrix composite materials of the Al-Si-Ni system directly on the hot-pressed cylindrical briquettes. The measurement left the material suitable for further use. The method enables LTEC measurements in three mutually perpendicular directions to estimate LTEC anisotropy. Aluminum-matrix composite materials manufacturing techniques are discussed. Conclusions are drawn on influence of disperse nanocarbon additives on LTEC of the considered AM fabricated composites.
Добавил в систему: Казаков Кирилл Евгеньевич

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