The paper presents the results of a study by the methods of mechanoluminescence (ML) and acoustic emission (AE) of the response of ceramic materials ZnS and ZnSe to impact damage to the surface. The experiment simulates the process of dust erosion of optical elements made of these materials, installed on high-speed mobile carriers. A comparison of the time series of light and sound emission showed that the ML exhibits two peaks approximately 50 - 100 and 150 - 200 ?s after the impact, while the AE generation occurs with a single maximum in the region of 200 ?s. The result is explained by the plastic deformation of the material at the first stage of fracture and the subsequent formation of microcracks.
Shcherbakov, I.P., Dunaev, A.A., Kadomtsev, A.G., and Chmel, A.E., Impact fracture of ZnSe ceramics, Phys. 2016.Vol. 58.S. 1969? 1972.
Jilbert GH, Field JE Synergistic effects of rain and sand erosion // Wear. 2000. V. 243. P. 6? 17.
Klein CA, Benedetto B. di, Pappis J. ZnS, ZnSe, and ZnS / ZnSe windows: Their impact on FLIR system performance // Opt. Eng. 1986. V. 25. P. 519? 531.
Hasan W. Rain erosion resistance coating for ZnS domes // Window and Dome Technologies and Materials II / Ed. P. Klocek. Proc. SPIE 1326. San Diego, 1990. P. 157? 165.doi: 10.1117 / 12.22495.
Chang CS, He JL, Lin ZP The grain size effect on the empirically determined erosion resistance of CVD-ZnS // Wear. 2003. V. 255. P. 115? 120.
Rozenburg KG, Urruti EH Polycrystalline chalcogenide ceramic material: Pat. USA 2013/0271610 A1.
Bredikhin, S.I. and Shmurak, S.Z., Luminescence and electrical characteristics of plastically deformed ZnS crystals, Zh. 1977.Vol. 73.P. 1460? 1469.
Bredikhin SI, Shmurak SZ Interaction of charged dislocations with luminescence centers in ZnS crystals // ZhETF. 1979.Vol. 76.P. 1027? 1037.
Tiwari R., Dubey M. V., Ramrakhiani M., Chandra BP Fracto-mechanoluminescence induced by impulsive deformation of II-VI semiconductors // Luminescence. 2015. V. 6.. 883.
Thaker S., Shukla VK, Baghel RN Fractomechan-oluminescence Produced During Impulsive Deformation of II-VI Semiconductor // J. Pure Appl. & Ind. Phys. 2015. V. 30. P. 883? 890.
The article can be purchased
electronic!
PDF format
700 руб
UDK 666:620.17
Article type:
Science for ceramic production
Make a request
