Parts can be made by hot pressing from four commercial grades of h BN


Parts can be made by hot pressing from four commercial grades of h-BN. Grade HBN contains a boron oxide binder; it is usable up to 550–850 °C in an oxidizing atmosphere and up to 1600 °C in a vacuum, but due to the boron oxide content is sensitive to water. Grade HBR uses a calcium borate binder and is usable at 1600 °C. Grades HBC and HBT contain no binder and can be used up to 3000 °C. Boron nitride nanosheets (h-BN) can be deposited by catalytic decomposition of borazine at a temperature of ~1100 °C in a chemical vapor deposition setup over areas up to about 10 cm2. Owing to their hexagonal atomic structure, small lattice mismatch with graphene (~2%), and high uniformity, they are used as substrates for graphene-based devices.[53] BN nanosheets are also excellent proton conductors. Their high proton transport rate and high electrical resistance may lead to applications in fuel cells and water electrolysis. h-BN has been used since the mid-2000s as a bullet and bore lubricant in precision target rifle applications as an alternative to molybdenum disulfide coating, commonly called "moly." It is claimed to increase effective barrel life, increase intervals between bore cleaning and decrease the deviation in point of impact between clean bore first shots and subsequent shots. If you are looking for high quality, high purity, and cost-effective Boron nitride, or if you require the latest price of Boron nitride, please feel free to email contact mis-asia.

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