The preparation method of ceramic ice blades developed by Professor Zhang Guanglei’s team from Shijiazhuang Tiedao University was patented

2022-05-05 0 By

The 2022 Beijing Winter Olympics just ended, China’s ice and snow athletes made a new historic breakthrough.The Beijing Winter Olympic Games brings new glory to the Olympic movement, but also makes people enjoy the ice and snow, fitness upsurge, high-speed sliding and balance sports are becoming the new fashion of entertainment and fitness in the future, at the same time, the science and technology elements of ice and snow sports also become a new highlight.Recently, the invention patent of a high toughness and high lubrication silicon nitride ceramic ice blade preparation method (Patent No. 202110924895.8) has been published, which further reflects the scientific and technological content in ice and snow sports.The patent is hosted by professor guang-lei zhang shijiazhuang railway university of science and technology in hebei province games are special project “silicon nitride ceramics with high strength and high lubrication (round) the design and preparation technology of the ice skates” (project number: 20471101 d), one of the important achievements for skating and skidding of the wheels movement the core equipment research and development has laid a theoretical and material basis.Zhang guanglei said that China made a solemn promise to bring 300 million people to participate in ice and snow sports as early as Beijing’s bid for the Winter Olympics.As a material person, IT is my great honor to combine new materials with ice and snow sports, replace traditional metal skates (wheels) with high-performance ceramics, improve the competitive level of skating and promote skating for all people.This research is mainly a combination of theoretical simulation and experiment, along the path of “composition – structure – performance – application”, the development of key materials, breakthrough performance indicators.Firstly, the composition and atomic structure of si3N4 composite ceramics were designed by first-principles calculation method. The brittleness and strength of ceramics were modified by adding graphene and glass phase regulation, and the optimal formula was determined.Then, controlled preparation of high strength and toughness si3n4 ceramics was achieved by spark plasma sintering and hot isostatic pressing sintering. The fracture toughness and bending strength of si3n4 ceramics exceeded 10 MPa·m1/2 and 1000MPa.Finally using the physical model, numerical simulation technology for different shapes of ice skates under service condition of mechanical and friction and wear behavior of the simulation calculation and simulation analysis, alternative metal alloys with silicon nitride ceramics, weight, and greatly improve the wear resistance, thus developed a silicon nitride ceramics with high strength and high lubrication (round), ice skatesIt provides a new path for the upgrading of athletes’ ice and snow equipment, opens up a new field for China’s advanced ceramic industry, and plays a great role in promoting the performance of athletes and the promotion of national skating.Sample of silicon nitride ceramic ice blade (wheel).Professor Zhang Guanglei has been engaged in the preparation and application research of advanced ceramic materials for a long time. His main research direction is high-performance ceramic materials and thermal insulation and energy saving materials. He has presided over 15 research and teaching projects, published more than 70 papers, published 7 textbooks and monographs, and authorized 13 invention patents.It has won one third prize of Excellent teaching achievement in Hebei Province and two second prizes of science and technology progress in Shijiazhuang City.At present as materials science and engineering university of shijiazhuang railway institute, vice dean of super material and micro devices in hebei province engineering research center director, act as advisors to shijiazhuang city government think-tank experts, hebei province, deputy director of the architectural curtain wall decoration industry association branch of energy-efficient building and green building academic institution of civil construction in hebei province committee, etc.Professor Zhang Guanglei’s team.It is reported that the use of new materials and new technology is the breakthrough of domestic ice blade brand.Actually used in the current world of ice skates to all metal material or use a metal and other composite material is given priority to, in the taxi, to keep the sharp edge, is to prevent slippage maintain effective pedal ice ice skates power, the basic factors for long distance, because of increased wear and tear, will lead to obvious dull blade, athletes efficient skew support ability,Therefore, the effective strength of pushing ice is reduced and the sports performance is affected, which requires the metal blade to be used and sharpened. In this respect, the ceramic material is obviously better than the metal material.Silicon nitride ceramics is the most excellent comprehensive properties of structural ceramics family kind of material, development prospect of application is considered to be one of the most one of the high-temperature structural ceramics, has high bending strength and fracture toughness, and has good abrasion resistance and self-lubricating ability, is widely used in the field of cutting tools, bearings, etc.Declaration: The copyright of this article belongs to the original author, if there is a source error or infringement of your legitimate rights and interests, you can contact us through the mailbox, we will promptly deal with.Email address: jpbl@jp.jiupainews.com