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Fedorchenko

Estimation of diamond-like protective coatings resistance to high-energy ion impact
Engineering Education # 08, August 2013
DOI: 10.7463/0813.0605449
This work deals with the possibility of using diamond-like coatings as protective layers applied to structural elements of a spacecraft. A technique for evaluation of thin coatings resistance to effects of ion radiation with the use of a focused ion beam was described. Results of stability studies of samples of diamond coatings on a substrate made of mono-crystalline silicon using the specified method are presented in this paper. The structure and mechanical properties of the coatings were investigated; the coefficient of diamond-likeness was also determined. It was shown that the resistance of coatings is greater than the resistance of a silicon substrate by not less than 2.5 times. A relation between the resistance of coatings to high-energy ion impact, the degree of diamond-likeness of a coating and its micro-hardness was established.
 
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