14.07.2021 у. Shodiev Khamza Ruzikulovich was defended on the topic: «Development of anti-corrosion composite materials and coatings based on them for equipment of the oil and gas industry and technology for their production», in the specialties: 05.02.01 – Materials science in mechanical engineering. Foundry. Heat treatment and processing of metals under pressure. Metallurgy of ferrous, non-ferrous and rare metals. Technology of radioactive, rare and noble elements (technical science), 02.00.07 – Chemistry and technology of composite, paint and varnish and rubber materials for the degree of Doctor of Philosophy in technical sciences (РhD).