公开(公告)号：US10378113B2

公开(公告)日：2019-08-13

申请号：US15614574

申请日：2017-06-05

Applicant: Huazhong University of Science and Technology

Inventor： Chunze Yan ,  Yusheng Shi ,  Wei Zhu

IPC: C23F4/04 ,  B33Y10/00 ,  C01B32/186 ,  C01B32/184 ,  C01B32/194

Abstract: A method for preparing a three-dimensional porous graphene material, including: a) constructing a CAD model corresponding to a required three-dimensional porous structure, and designing an external shape and internal structure parameters of the model; b) based on the CAD model, preparing a three-dimensional porous metal structure using a metal powder as material; c) heating the three-dimensional porous metal structure and preparing a metal template of the required three-dimensional porous structure; d) placing the metal template in a tube furnace and heating the metal template to a temperature of between 800 and 1000° C.; standing for 0.5-1 hr, introducing a carbon source to the tube furnace for continued reaction, cooling resulting products to room temperature to yield a three-dimensional graphene grown on the metal template; and e) preparing a corrosive solution, and immersing the three-dimensional graphene in the corrosive solution.

公开(公告)号：US11021402B2

公开(公告)日：2021-06-01

申请号：US16503613

申请日：2019-07-04

Applicant: Huazhong University of Science and Technology

Inventor： Chunze Yan ,  Wei Zhu ,  Hua Fu ,  Zhongfeng Xu ,  Yusheng Shi ,  Chenhui Li ,  Jiamin Wu ,  Shifeng Wen ,  Zhaoqing Li

IPC: C04B35/565 ,  C04B35/622 ,  C04B35/80

Abstract: A method of preparing a C/C-SiC composite part, including: preparing, using a solvent evaporation process, carbon fiber composite powders coated with a phenol resin; according to a three-dimensional model of a to-be-prepared part, forming a green part corresponding to the to-be-prepared part using the carbon fiber composite powders and a 3D printing technology; densifying the green part to yield a C/C porous body having a density of 0.7 to 1.1 g/cm3 and an open porosity of 30 to 50%; and siliconizing the C/C porous body under vacuum, removing excess silicon to yield a primary carbon fiber reinforced carbon-silicon carbide (C/C-SiC) body, densifying the primary C/C-SiC body, to obtain a final C/C-SiC composite part.