The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 25, 2018
Filed:
Nov. 13, 2014
Yanshan University, Qinhuangdao, CN;
Yongjun Tian, Qinhuangdao, CN;
Quan Huang, Qinhuangdao, CN;
Dongli Yu, Qinhuangdao, CN;
Bo Xu, Qinhuangdao, CN;
Julong He, Qinhuangdao, CN;
Zhongyuan Liu, Qinhuangdao, CN;
Wentao Hu, Qinhuangdao, CN;
Zhisheng Zhao, Qinhuangdao, CN;
Yanshan University, Qinhuangdao, CN;
Abstract
The present invention relates to ultrahard nanotwinned diamond bulk materials and synthetic method thereof. In particular, the present invention discloses a diamond bulk material containing high density of nanocrystalline twins and synthetic method thereof, in which a nanotwinned diamond bulk is synthesized from particles of nanospherical onion-like carbon without diamond core (preferably with a size of 5-70 nm) as raw materials by using high temperature and high pressure synthesis. As compared with the prior art, the nanotwinned diamond bulk obtained according to the present invention has a much higher hardness than that of single crystal diamond and that of ultrahard polycrystalline diamond. The nanotwinned diamond bulk has wide prospects in various applications, including geological drilling, machining fields such as high speed cutting and precision and ultra-precision machining, abrasives, drawing dies, and special optics as well as other fields.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile