TSU metallurgists have created the hardest example of slippery ceramic
TSU scientists have proposed a new method for producing composite “slippery” AlMgB14 ceramics (aluminum-magnesium-boron). The hardness of the composites is 40% higher than in samples without the additives, and the friction coefficient is almost twice as low as that of lubricated polished steel. Refrigerators, air conditioners, and other equipment with accessories made of slippery ceramics will make less noise and last longer, because the friction of parts will be less.At the first stage, the team of scientists received samples of the material, whose properties corresponded to foreign analogs - high hardness, 32 GPa, and low coefficient of friction, less than 0.07. At the same time, 97% AlMgB14 compound and 3% impurities were in the samples. Based on them, scientists developed composite material. They added titanium diboride to the "pure" AlMgB14 and the hardness of the material increased by 40%.
Read more: http://en.tsu.ru/news/tsu-metallurgists-have-created-the-hardest-example-of-slippery-ceramic/