logo

For the Inventor, By the Inventor

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 12508650 B1

PDFFull Text
Date of Patent:
Dec. 30, 2025

Filed:

Mar. 13, 2024

Polycrystalline diamond composite sheet having continuous gradient transition layer and preparation method thereof

Applicants:

Central South University, Changsha, CN;

Sf Diamond Co., Ltd., Zhengzhou, CN;

Inventors:

Shaohe Zhang, Changsha, CN;

Xiangwang Kong, Changsha, CN;

Dongpeng Zhao, Zhengzhou, CN;

Yulu Li, Changsha, CN;

Linglong Rong, Changsha, CN;

Haoyang Zhang, Changsha, CN;

Qingyuan Fang, Zhengzhou, CN;

Hua Gao, Zhengzhou, CN;

Jincheng Li, Zhengzhou, CN;

Jingjing Wu, Changsha, CN;

Mengyao Shao, Zhengzhou, CN;

Changjian Geng, Zhengzhou, CN;

Assignees:

CENTRAL SOUTH UNIVERSITY, Changsha, CN;

SF DIAMOND CO., LTD., Zhengzhou, CN;

Attorney:

JCIPRNET

Primary Examiner:

Erin Snelting

Int. Cl.
CPC ...
B22F 7/02 (2006.01); B22F 10/32 (2021.01); B28B 1/00 (2006.01); C04B 35/52 (2006.01); C04B 35/56 (2006.01); C04B 35/645 (2006.01);
U.S. Cl.
CPC ...
B22F 7/02 (2013.01); B22F 10/32 (2021.01); B28B 1/001 (2013.01); C04B 35/52 (2013.01); C04B 35/56 (2013.01); C04B 35/645 (2013.01); B22F 2201/20 (2013.01); B22F 2203/11 (2013.01); B22F 2207/15 (2013.01); B22F 2302/10 (2013.01); B22F 2302/406 (2013.01); B22F 2303/40 (2013.01); C04B 2235/3847 (2013.01); C04B 2235/427 (2013.01);
Abstract

The disclosure discloses a polycrystalline diamond composite sheet having a continuous gradient transition layer and a 3D printing preparation method thereof. The polycrystalline diamond composite sheet consists of a polycrystalline diamond layer, a continuous gradient transition layer, and a cemented carbide substrate from top to bottom, in which the continuous gradient transition layer consists of diamond and cemented carbide. Along a direction from the cemented carbide substrate to the polycrystalline diamond layer, a content of the cemented carbide in the continuous gradient transition layer decreases from 100% to 0, and a content of the diamond increases from 0 to 100%. By designing and combining the continuous gradient transition layer with 3D printing technology, the disclosure realizes a continuous change in the two materials of diamond and cemented carbide, thereby eliminating the sudden change interface of the materials inside the diamond composite sheet.

Find Patent Forward Citations

Quick Actions:

Zhang, Shaohe. (2025). Polycrystalline diamond composite sheet having continuous gradient transition layer and preparation method thereof (U.S. Patent No. 12508650). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12508650

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

Loading…