16 июля 2020  |  
9:04 PM  October 16, 2019

TSU scientists created a Russian analogue of "slippery ceramics"

© РИА Томск. Павел СтефанскийTSU scientists created a Russian analogue of slippery ceramics

TOMSK, Oct 16 – RIA Tomsk. Employees of TSU High-Energy and Special Materials Research Laboratory developed technology for "slippery ceramics” (aluminum-magnesium-boron alloy) synthesis, which was produced in the USA; new material can be used in mechanical engineering, aircraft manufacturing, household appliances production, the university’s press service said on Wednesday.

It is specified that "slippery ceramics" with an extremely low coefficient of friction are mainly obtained in the USA. By reducing friction, it can reduce the noise level of any pump. The material is used in mechanical engineering, aircraft manufacturing, domestic sphere. Refrigerators, air conditioners and other equipment become not only silent, but also more durable and energy efficient.

"At a scientific conference, I heard about the aluminum-magnesium-boron (AlMgB14) compound, which no one does in Russia. It has a unique property – it is self-lubricating, since its friction coefficient is 2 times less than that of Teflon. At the same time it has an abnormal hardness of 32 gigapascals ... We made samples with 97% of AlMgB14 and 3% of impurities", – the press service quotes the developer of the project Ilya Zhukov, Tomsk State University (TSU) postgraduate student.

According to him, Tomsk State University (TSU) materials scientists have developed their own methodology for the synthesis of "slippery ceramics” and unique powders that serve as sources for the synthesis of AlMgB14. At the next stage, supported by a grant from the Russian Science Foundation, researchers will seek maximum smoothness of the material.

© РИА Томск. Яков Андреев
"We will check the mechanical properties of the alloy, friction coefficient and reduce porosity. The problem of all ceramics is that it is porous. It is very difficult to make it non-porous, but it will help to increase the physicomechanical properties of ceramics (increase hardness and reduce the coefficient of friction). We need to work with the original powders", – explains Zhukov.

In addition, researchers intend to use spark plasma sintering methods. In theory, this should lead to the creation of a non-porous "slippery ceramic”. The co-executors of the project are the St. Saint Petersburg State Institute of Technology and Nizhny Novgorod Research Institute of Physics and Technology.

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