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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.:

US 11312660 B1

PDFFull Text
Date of Patent:
Apr. 26, 2022

Filed:

Mar. 25, 2020

Dense boron nitride ceramic with high plasticity and high elasticity and preparation for the same

Applicant:

Yanshan University, Qinhuangdao, CN;

Inventors:

Zhisheng Zhao, Qinhuangdao, CN;

Yang Zhang, Qinhuangdao, CN;

Yingju Wu, Qinhuangdao, CN;

Shuangshuang Zhang, Qinhuangdao, CN;

Wentao Hu, Qinhuangdao, CN;

Dongli Yu, Qinhuangdao, CN;

Julong He, Qinhuangdao, CN;

Bo Xu, Qinhuangdao, CN;

Zhongyuan Liu, Qinhuangdao, CN;

Yongjun Tian, Qinhuangdao, CN;

Assignee:

YANSHAN UNIVERSITY, Qinhuangdao, CN;

Attorneys:

Maschoff Brennan

Brent A. Johnson

Yuefen Zhou

Primary Examiner:

Karl E Group

Assistant Examiner:

Cameron K Miller

Int. Cl.
CPC ...
C04B 35/583 (2006.01);
U.S. Cl.
CPC ...
C04B 35/583 (2013.01); C04B 2235/528 (2013.01); C04B 2235/5445 (2013.01); C04B 2235/5454 (2013.01); C04B 2235/6581 (2013.01); C04B 2235/666 (2013.01); C04B 2235/77 (2013.01); C04B 2235/96 (2013.01);
Abstract

The present disclosure relates to a dense boron nitride ceramic with high plasticity and high elasticity and the preparation process thereof. The preparation process includes the following steps: A) weighing a predetermined amount of spherical boron nitride nano-powders with onion-like structure, pre-pressing them into a pre-pressed body and putting the pre-pressed body into a sintering mold; B) putting the pre-pressed body obtained in step A) together with the sintering mold into a spark plasma sintering apparatus or a hot-pressing sintering apparatus for sintering; and C) taking out the mold after cooling, and removing the mold to obtain the boron nitride dense ceramic block with high plasticity and high elasticity. According to the present invention, a boron nitride ceramic with high strength and high plasticity is obtained via sintering spherical boron nitride nano-powders with onion-like structure.

Find Patent Forward Citations

Zhao, Zhisheng. (2022). Dense boron nitride ceramic with high plasticity and high elasticity and preparation for the same (U.S. Patent No. 11312660). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11312660

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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