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ULTRAHARD NANOTWINNED BORON NITRIDE BULK MATERIALS AND SYNTHETIC METHOD THEREOF
The invention relates to an ultrahard nanotwinned boron nitride bulk material and synthetic method thereof. Particularly, the invention discloses a nanocrystalline cubic boron nitride bulk material containing high density of twins and synthetic method thereof, in which a nanotwinned boron nitride bulk are synthesized from nanospherical boron nitride particles (preferably with a size of 5-70 nm) with onion-like structure as raw materials by using high temperature and high pressure synthesis. As compared with the prior arts, the nanotwinned boron nitride bulk obtained according to the invention has a much higher hardness than that of a normal cubic boron nitride single crystal. The nanotwinned boron nitride bulk has great prospects in applications, such as precision and ultra-precision machining, abrasives, drawing dies, and special optics as well as other fields.
ULTRAHARD NANOTWINNED BORON NITRIDE BULK MATERIALS AND SYNTHETIC METHOD THEREOF
The invention relates to an ultrahard nanotwinned boron nitride bulk material and synthetic method thereof. Particularly, the invention discloses a nanocrystalline cubic boron nitride bulk material containing high density of twins and synthetic method thereof, in which a nanotwinned boron nitride bulk are synthesized from nanospherical boron nitride particles (preferably with a size of 5-70 nm) with onion-like structure as raw materials by using high temperature and high pressure synthesis. As compared with the prior arts, the nanotwinned boron nitride bulk obtained according to the invention has a much higher hardness than that of a normal cubic boron nitride single crystal. The nanotwinned boron nitride bulk has great prospects in applications, such as precision and ultra-precision machining, abrasives, drawing dies, and special optics as well as other fields.
ULTRAHARD NANOTWINNED BORON NITRIDE BULK MATERIALS AND SYNTHETIC METHOD THEREOF
ULTRAHARTE NANOTWIN-BORNITRIDSCHÜTTGÜTER UND SYNTHESEVERFAHREN DAFÜR
MATÉRIAUX MASSIFS EN NITRURE DE BORE MACLÉS À L'ÉCHELLE NANOMÉTRIQUE ULTRA-DURS ET LEUR PROCÉDÉ DE SYNTHÈSE
TIAN YONGJUN (author) / YU DONGLI (author) / XU BO (author) / HE JULONG (author) / LIU ZHONGYUAN (author) / HU WENTAO (author) / LUO KUN (author) / GAO YUFEI (author) / ZHAO ZHISHENG (author)
2019-05-08
Patent
Electronic Resource
English
Ultrahard nanotwinned boron nitride bulk materials and synthetic method thereof
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