公开(公告)号：US09422161B2

公开(公告)日：2016-08-23

申请号：US14407017

申请日：2013-08-02

Applicant: YANSHAN UNIVERSITY

Inventor： Yongjun Tian ,  Dongli Yu ,  Bo Xu ,  Julong He ,  Zhongyuan Liu ,  Wentao Hu ,  Kun Luo ,  Yufei Gao ,  Zhisheng Zhao

IPC: B01J3/06 ,  B82Y30/00 ,  C01B21/064 ,  C04B35/645 ,  C04B35/5831

CPC classification number: C01B21/0648 ,  B01J3/062 ,  B01J2203/0645 ,  B01J2203/066 ,  B82Y30/00 ,  C01P2002/60 ,  C01P2002/72 ,  C01P2004/02 ,  C01P2004/04 ,  C01P2004/64 ,  C04B35/5831 ,  C04B35/645 ,  C04B2235/52 ,  C04B2235/5409 ,  C04B2235/5454 ,  C04B2235/723 ,  C04B2235/781 ,  C04B2235/96

Abstract: 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.

Abstract translation: 本发明涉及一种超硬纳米结晶氮化硼体材料及其合成方法。 特别地，本发明公开了一种含有高密度双胞胎的纳米晶体立方氮化硼体材料及其合成方法，其中由纳米球形氮化硼体系由纳米球形氮化硼颗粒（优选尺寸为5-70nm）与洋葱 - 通过使用高温高压合成作为原料。 与现有技术相比，根据本发明获得的纳米结晶氮化硼体积具有比正常立方氮化硼单晶高得多的硬度。 纳米结晶氮化硼体积在精密和超精密加工，磨料，拉丝模，特殊光学以及其他领域的应用前景广阔。

公开(公告)号：US20150158727A1

公开(公告)日：2015-06-11

申请号：US14407017

申请日：2013-08-02

Applicant: YANSHAN UNIVERSITY

Inventor： Yongjun Tian ,  Dongli Yu ,  Bo Xu ,  Julong He ,  Zhongyuan Liu ,  Wentao Hu ,  Kun Luo ,  Yufei Gao ,  Zhisheng Zhao

IPC: C01B21/064 ,  B01J3/06

CPC classification number: C01B21/0648 ,  B01J3/062 ,  B01J2203/0645 ,  B01J2203/066 ,  B82Y30/00 ,  C01P2002/60 ,  C01P2002/72 ,  C01P2004/02 ,  C01P2004/04 ,  C01P2004/64 ,  C04B35/5831 ,  C04B35/645 ,  C04B2235/52 ,  C04B2235/5409 ,  C04B2235/5454 ,  C04B2235/723 ,  C04B2235/781 ,  C04B2235/96

Abstract: 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.

Abstract translation: 本发明涉及一种超硬纳米结晶氮化硼体材料及其合成方法。 特别地，本发明公开了一种含有高密度双胞胎的纳米晶体立方氮化硼体材料及其合成方法，其中由纳米球形氮化硼体系由纳米球形氮化硼颗粒（优选尺寸为5-70nm）与洋葱 - 通过使用高温高压合成作为原料。 与现有技术相比，根据本发明获得的纳米结晶氮化硼体积具有比正常立方氮化硼单晶高得多的硬度。 纳米结晶氮化硼体积在精密和超精密加工，磨料，拉丝模，特殊光学以及其他领域的应用前景广阔。