Copper-containing nanoparticles in a high-pressure polyethylene matrix were prepared by thermal decomposition of copper acetate. An electron microscopic study of the morphology and an X-ray diffraction analysis of the phase composition of a nanocomposite were carried out. It was shown that the dispersed phase essentially consisted of metallic copper nanoparticles with a size of 33.94 nm.
Studying the dependence of the degree (α) and rate (ϑ) of the phase transformation of graphite into diamond on the synthesis time at different temperatures of the developed synthetic diamonds using the technology of high-pressure high-temperature synthesis in a metal melt (HPHT), we determined the critical mass of diamonds, which indicates the entry of the system into the stability region of graphite, where the graphitization of diamonds occurs. The role of implanted metals and hydrogen in the formation of synthetic diamonds and on its properties was also investigated.
In this paper, the results of scientific research work are carried out to study the role of the interfacial layer in filled polymer materials using infrared and electron-paramagnetic resonance spectroscopy using the fundamentals of solid-state physics. At the same time, the authors of this work used all the rich experience of both experimenters and theoreticians working in this field of science and their own developments regarding methods for controlling the structure of these materials. It is noteworthy that the material interpreted in this work concerns composites subjected to special technological preparation, including the stage of ultrasonic dispersion of filler particles in a binder medium.
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