50 Years of the Tomponsky Training Ground Named After V.I. Korostelev, a Geological Staff Forge

Abstract

Geological practical training is an integral part of the educational process of students. Such practices contribute to the quality of the training of geologists. The base of the Tomponsky training ground of North-Eastern Federal University was established under the leadership of Victor Ivanovich Korostelev in 1972 (at that time the university was called Yakutsk State University). It is located in the mountains of Southern Verkhoyansk Range at the 662 km of the Yakutsk-to-Magadan highway, in the territory of the resource reserve «Suntar-Khayata», at the confluence of the East Khandyga River and its tributary Kurbelyakh Stream. The polygon was named after its founder V.I. Korostelev in the anniversary year of 2002. The attractiveness of the geological structure of the territory and the transport scheme of students to arrive to the place of their training practice were considered when choosing the location of the training ground. The Tomponsky training ground was highly appreciated in the reviews of professors of the Geological Faculty of Moscow State University and the heads of the Crimean landfill, namely, I.V. Vysotsky, E.E. Milanovsky, A.M. Seregin, B.A. Sokolov, V.I. Slavin, V.E. Khain, A.A. Vercheba, who visited it in different years. Now, in the year of its 50th anniversary, the Tomponsky training ground meets its purpose, and the experience of its operation proves the effectiveness of practical field training of students of geological specialties and allows us to talk about the demand for the landfill in the future.

Joint Low-Temperature Carbothermic Synthesis of WC-Co Alloy in Vacuum

“…Before the synthesis of WC-Co powders, tungsten anhydride WO3 (α -oxide) was reduced to βoxide WO2.9 (blue tungsten oxide) at a temperature of 550 °C in a hydrogen medium. The use of WO2.9 makes it possible to obtain finely dispersed and submicron tungsten carbide powder, which is necessary for the production of hard alloy tools [6]. After the reduction of tungsten trioxide, it was mixed with carbon black, cobalt oxide and grain growth inhibitors in the mill in proportions calculated to obtain two variations of the final component ratio.…”