boron nitride


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boron nitride

n
(Elements & Compounds) a white inert crystalline solid existing both in a graphite-like form and in an extremely hard diamond-like form (borazon). It is used as a refractory, high-temperature lubricant and insulator, and heat shield. Formula: BN
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Table 40: US Historic Review for Consumption of Cubic Boron Nitride Abrasives by End Use Segment - Automotive, Aerospace, Bearings, Tools and Dies, Gears, and Other Applications Independently Analyzed with Annual Sales Figures in US$ '000 for Years 1991 through 2000 (includes corresponding Graph/Chart) III-7
Boron nitride nanotubes have a structure very similar to the better known carbon nanotubes.
Based on the results, boron nitride nanosheet adsorbent is very good for the adsorption of cyanogen, and it can be used in designing gas-sensitive sensors to detect and separate the toxic gas from the environment.
of the typically maximum effective level of boron nitride (45%) with ND.
Graphene-based electronics require similar, compatible 2-D materials for other components, and researchers have found hexagonal boron nitride (h-BN) works nicely as an insulator.
You get a lot more boron atoms per volume in this solid boron nitride than you get in the helium-3 atoms per unit volume in a tube," said Wayne McGinnis, the scientist leading the research at the Navy's Space and Naval Warfare Systems Center in San Diego.
The total thickness of the boron nitride detector element is typically less than one millimeter.
Other subjects are synthesis of boron nitride nanotubes for engineering applications, characterization of chalcogenide nanocomposites, and preparation of mullite-based iron nanocomposites.
Duralor manufactures cubic boron nitride (cBN) coatings for cutting-tool applications currently in use with a global automotive manufacturer and in the heavy machinery industry under the product name TuffTek.
Using computer simulations, researchers have found two minerals that beat diamond as nature's hardest substance: wurtzite boron nitride and lonsdaleite.
Uniquely dispersed microscopic graphite, molybdenum disulfide, boron nitride or PTFE particles that are very slippery are said to create a durable, low friction lubricating film.
It also has been found that boron nitride, a coating normally used with aluminum, can be optimized for magnesium use.