Experimental Validation of Mechanism of Pulsed Energy Effect on Structure, Chemical Properties and Microhardness of Rock-Forming Minerals of Kimberlites
I. ZH. BUNIN, V. A. CHANTURIA, N. E. ANASHKINA, M. V. RYAZANTSEVA
Research Institute of Comprehensive Exploitation of Mineral Resources-IPKON, Russian Academy of Sciences, Kryukovskii tupik 4, Moscow, 111020 Russia
Keywords: породообразующие минералы кимберлитов, высоковольтные наносекундные импульсы, ИК-фурье-спектроскопия, рентгеновская фотоэлектронная спектроскопия, микроскопия, поверхность, микротвердость, kimberlite rock-forming minerals, high-voltage nanosecond pulses, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, microscopy, surface, microhardness
Abstract
Using the Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), microscopy and microhardness test methods, the change in the crystalline and chemical properties and in microhardness of rock-forming minerals of kimberlites as a result of exposure to high-power nanosecond electromagnetic pulses (HPEM) has been studied. Based on the data of FTIR and XPS, non-thermal effect of HPEM results in damage of surface microstructure of dielectric minerals due to formation of microcracks, surface breakdowns and other defects, which ensures effective weakening of rock-forming minerals and reduction in their microhardness by 40-66%.
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