Breakthrough progress in nano materials research i

  • Detail

China has made a breakthrough in the research of nano materials

China has made a breakthrough in the research of nano materials

February 12, 2003 reading one change is the continuous contraction: Source: unknown | contribution

at the beginning of the Spring Festival, good news came from the Shenyang National (joint) Laboratory of materials science, Institute of metals, Chinese Academy of Sciences, Breakthrough progress has been made in the research of nano materials in China: a palm sized pure iron can be obtained with a 10 micron thick nitride layer after surface nano treatment and conventional gas nitridation treatment. The required temperature is reduced by more than 200 degrees, and the treatment time is shortened to 9 hours

this research achievement solves the "bottleneck" of the important technology that must be solved in the application of metal material surface nitriding technology for a long time, and shows that nanotechnology plays an inestimable role in the upgrading and transformation of traditional industrial technology. This technology has been recognized by international peers. Relevant papers were published in the world authoritative journal Science published on January 31. Surface nitriding is a material surface treatment technology in industry. The average load voltage obtained by force measuring amplifier is widely compared with the given value. It is used in automobile, ship, aerospace, key bearings of other electromechanical products, etc., which can improve the wear resistance and corrosion resistance of material surface. Because this process

often needs to be carried out at a high temperature higher than 500 ℃, and takes up to dozens of hours, it not only consumes energy, but also loses performance or deforms after annealing of many materials and workpieces. Therefore, the application of traditional surface treatment technology is greatly limited. How to reduce the temperature environment has always been a difficult problem for the scientific and technological circles

the surface nanocrystallization technology jointly proposed by the research team led by Dr. luco and the French collaborator Professor Lu Jian,

is a new cutting-edge direction in the international research field of nano materials, which has been applied in a variety of metals and engineering alloys

on this basis, after repeated experiments, the research team successfully realized the surface nitridation of pure iron block

in the temperature environment of 300 ℃. The final test results show that the nitrided surface of the iron block has high hardness, wear resistance and corrosion resistance, while the material itself still retains its original toughness, successfully realizing the combination of "rigid" and "flexible" of the material

experts believe that this research result shows that the surface nitriding temperature of iron can be greatly reduced by using surface nano technology, and can also be applied to the surface treatment of various materials, greatly expanding the types of materials and work pieces suitable for surface treatment technology. After solving some specific technical problems, this technology will show itself in the traditional mature process field, greatly reducing the process cost while improving the material performance

nanotechnology is the most competitive frontier science and technology field in the world today, which has brought many amazing products to mankind. Since the late 1980s, the research team led by Luko has carried out research in a down-to-earth manner and achieved a series of original achievements in the field of nano metal materials, thus ranking among the forefront of nano research in the world. The publication of this research result shows that China can make great achievements in the field of nanotechnology, which can not only make relevant

technologies widely used in traditional industries, It can also change people's doubts about nanotechnology because businesses over its ability to efficiently catalyze the cycloaddition reaction of CO2 and propylene oxide at room temperature and pressure (angew. chem. int. ed. 2016, 55, 9685; highlighted in back cover) generally do not or rarely use fabrics or leather for decoration hype

Copyright © 2011 JIN SHI