Vladimir Andreevich Kotrekhov

Title: Vladimir Andreevich Kotrekhov: Innovator in Zirconium-Based Alloys

Introduction

Vladimir Andreevich Kotrekhov is a notable inventor based in Glazov, Russia. He has made significant contributions to the field of materials science, particularly in the development of zirconium-based alloys. With a total of 5 patents to his name, his work has implications in nuclear power engineering.

Latest Patents

Kotrekhov's latest patents include a zirconium-niobium oxygen-containing alloy and a method for producing this alloy. This invention addresses the need for improved engineering and operational properties in fuel rods for nuclear reactor cores. The alloy is composed of niobium (0.9-1.1%), oxygen (0.05-0.09%), and zirconium as the balance. The structure features alpha-zirconium with oxygen irregularity zones not exceeding 30 nanometers, along with zirconium sub-oxide and beta-niobium. The manufacturing method involves creating a stock of zirconium-containing material and niobium pentoxide, followed by treatment to produce an ingot with the specified composition.

Another significant patent involves a zirconium-based alloy designed for components of the active core of nuclear reactors. This alloy comprises niobium (0.5-3.0%), iron (0.005-0.5%), oxygen (0.03-0.2%), carbon (0.001-0.04%), silicon (0.002-0.1%), nickel (0.003-0.02%), with zirconium as the balance. The alloy's structure is characterized by an alpha-solid solution and beta-Nb-phase particles sized below 0.1 µm, with a niobium content ranging from 60 to 95%.

Career Highlights

Throughout his career, Kotrekhov has worked at the A.A. Bochvar All-Russian Inorganic Materials Research Institute. His research has focused on enhancing the properties of materials used in critical applications, particularly in the nuclear sector.

Collaborations

Kotrekhov has collaborated with notable colleagues, including Antonina Vasilievna Nikulina and Anatoly Frantsevich Lositsky. Their joint efforts have contributed to advancements in the field of inorganic materials.

Conclusion

Vladimir Andreevich Kotrek