Recently, there have been two consecutive technological breakthroughs in the domestic silicon carbide field, involving silicon carbide powder equipment and graphite coating equipment.
http://www.ic-bom.com/Liancheng CNC:
Breakthrough in SiC powder furnace
On April 13th, the official WeChat account of Liancheng CNC stated that the China Nonferrous Metals Industry Association recently organized an expert group to evaluate the technological achievements of the company‘s "silicon carbide vertical induction synthesis furnace". At the meeting, experts unanimously agreed that the silicon carbide powder synthesis equipment has improved the quality of silicon carbide synthesis powder, increased the weight of a single synthesis, reduced unit energy consumption, reduced manufacturing costs, and promoted the upgrading and upgrading of high-end silicon carbide equipment in China.
It is reported that the team of Liancheng CNC Semiconductor Crystal Division has developed the largest silicon carbide powder synthesis furnace in the industry, with powder purity reaching the first-class level in China. The large-sized synthesis furnace and its thermal field developed by its team can accurately control the axial temperature gradient and radial temperature uniformity, solving the problems of low loading capacity and low yield in traditional silicon carbide powder synthesis furnaces, making the reaction more sufficient and solving the problem of process stability.
At the same time, the unique crucible and coating designed by the company can reduce the pollution of impurities in the crucible, improve the lifespan of the crucible, and improve the purity of silicon carbide powder. Through process optimization, it can be compatible with both conductive and semi insulating silicon carbide powder synthesis.
In addition to the silicon carbide powder synthesis furnace, the liquid phase silicon carbide long crystal furnace of Liancheng CNC was also successfully launched in March this year, and its performance has been tested to meet the expected goals. Meanwhile, Liancheng CNC‘s silicon carbide induction furnace also received 190 orders from a key customer in the first quarter of this year.http://www.ic-bom.com/
Wuhan University of Technology:
Breakthrough in SiC coating equipment
On February 2nd, Changjiang Daily published a report on the development and research of chemical vapor deposition preparation technology by Professor Zhao Pei and his team from the School of Materials Science and Engineering, Wuhan University of Engineering. This technology has been widely applied by graphite coating enterprises.
According to the official website of the School of Materials Science and Engineering at Wuhan University of Engineering, in June 2020, the team developed an intelligent chemical vapor deposition equipment with independent intellectual property rights.http://www.ic-bom.com/
It is worth noting that this equipment innovatively solves the problem of the solid raw material evaporation tank supply system in current chemical vapor deposition methods that cannot provide accurate, continuous, and stable raw material steam for a long time in industrial applications. It can significantly improve the deposition rate of silicon carbide coatings, accurately control the composition proportion of raw materials, and achieve fully automated operation of the deposition process.
At present, this technology and device have been widely used in some enterprises and research institutes to prepare silicon carbide coatings. It is reported that the graphite mold of a certain enterprise can only be used 8 times. After using the technology of Zhao Pei‘s team, the service life of the graphite mold has increased to 42 times, greatly extending its service life and increasing it by more than 5 times, effectively reducing production costs.http://www.ic-bom.com/
