Patents by Inventor Changguang Deng

Changguang Deng has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 12091731
    Abstract: Disclosed is a biomedical ? titanium alloy and a preparation method thereof. Its composition includes: Mo: 9.20-13.50%; Fe: 1.00-3.20%; Zr: 3.50-8.20%; Ta: 0-1.00%; the balance is Ti. The ? titanium alloy is suitable for the laser additive manufacturing technology, and the prepared parts have a dense equiaxed grain structure with ultra-low grain size and a small number of columnar grain structures, which produces a fine-grain strengthening effect, and greatly improve the hardness and tribocorrosion performance of the alloy material. Also provided is a method for preparing a non-toxic, low-elasticity, and tribocorrosion resistant biomedical ? titanium alloy material. A powder prepared from the above alloy components is subjected to a laser additive manufacturing technology to prepare a corresponding ? titanium alloy with high-hardness, good tribocorrosion resistance and extremely low cytotoxicity.
    Type: Grant
    Filed: July 26, 2022
    Date of Patent: September 17, 2024
    Assignee: Institute of New Materials, Guangdong Academy of Sciences
    Inventors: Xingchen Yan, Cheng Chang, Qingkun Chu, Changguang Deng, Min Liu
  • Publication number: 20240254599
    Abstract: Disclosed are a high-entropy alloy (HEA) coating and a preparation method and use thereof. Laser cladding is conducted with an HEA powder to obtain the HEA coating, where the HEA is a FeCoCrNiAl0.5Ti0.5 alloy, and the HEA includes the following chemical components in atomic percentage: Al: 10.01% to 12.30%, Co: 18.1% to 22.5%, Cr: 18.05% to 20.12%, Fe: 18.77% to 21.02%, Ni: 19.21% to 20.99%, and Ti: 8.43% to 11.5%. The HEA material with high hardness and wear resistance provided by the present disclosure is suitable for laser cladding of a surface of a precision mold, an offshore component, or a drilling rod. A powder is prepared from the above alloy components and then prepared into a corresponding HEA coating with high strength, high hardness, and prominent wear resistance through laser cladding. The material has prominent weldability and is a special nickel-based HEA material suitable for laser additive manufacturing.
    Type: Application
    Filed: September 30, 2022
    Publication date: August 1, 2024
    Inventors: Xingchen Yan, Cheng Chang, Bingwen Lu, Changguang Deng, Min Liu
  • Patent number: 12000497
    Abstract: Disclosed are a GM type cryogenic refrigerator rotary valve and a preparation method therefor. The GM type cryogenic refrigerator rotary valve comprises an aluminum alloy rotating valve and an alumina ceramic membrane. A valve body of the aluminum alloy rotating valve is provided with a first surface for arranging a working boss and a second surface opposite to the first surface; and a high-pressure hole and a low-pressure groove are both provided in the working boss, and a vent hole is provided in the first surface; the high-pressure hole and the vent hole both penetrate the valve body, and an air chamber is formed on the second surface. The alumina ceramic membrane is plated on surface of the aluminum alloy rotating valve. The preparation method comprises: plating an alumina ceramic membrane on surface of an aluminum alloy rotating valve by means of a micro-arc oxidation process.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: June 4, 2024
    Assignee: Institute of New Materials, Guangdong Academy of Sciences
    Inventors: Jifu Zhang, Xingchi Chen, Min Liu, Mingjiang Dai, Chunming Deng, Changguang Deng
  • Publication number: 20230023628
    Abstract: Disclosed is a biomedical ? titanium alloy and a preparation method thereof. Its composition includes: Mo: 9.20-13.50%; Fe: 1.00-3.20%; Zr: 3.50-8.20%; Ta: 0-1.00%; the balance is Ti. The ? titanium alloy is suitable for the laser additive manufacturing technology, and the prepared parts have a dense equiaxed grain structure with ultra-low grain size and a small number of columnar grain structures, which produces a fine-grain strengthening effect, and greatly improve the hardness and tribocorrosion performance of the alloy material. Also provided is a method for preparing a non-toxic, low-elasticity, and tribocorrosion resistant biomedical ? titanium alloy material. A powder prepared from the above alloy components is subjected to a laser additive manufacturing technology to prepare a corresponding ? titanium alloy with high-hardness, good tribocorrosion resistance and extremely low cytotoxicity.
    Type: Application
    Filed: July 26, 2022
    Publication date: January 26, 2023
    Inventors: Xingchen Yan, Cheng Chang, Qingkun Chu, Changguang Deng, Min Liu
  • Patent number: 11502320
    Abstract: Provided are a solid oxide fuel cell/electrolytic cell and electric stack, which relate to the field of cells. A metal support frame is molded in one step or more steps through the additive manufacturing technology. And then a fuel/electrolytic cell functional layer is formed on the metal support frame by means of thermal spraying, tape casting, screen printing or chemical vapor deposition method, and self-sealing of the solid oxide fuel cell/electrolytic cell is realized through a dense structure of electrolyte.
    Type: Grant
    Filed: December 3, 2020
    Date of Patent: November 15, 2022
    Assignee: INSTITUTE OF NEW MATERIALS, GUANGDONG ACADEMY OF SCIENCES
    Inventors: Min Liu, Chen Song, Taikai Liu, Dongdong Dong, Chunming Deng, Kesong Zhou, Yapeng Zhang, Kui Wen, Changguang Deng, Wenyou Ma
  • Publication number: 20220271317
    Abstract: Provided are a solid oxide fuel cell/electrolytic cell and electric stack, which relate to the field of cells. A metal support frame is molded in one step or more steps through the additive manufacturing technology. And then a fuel/electrolytic cell functional layer is formed on the metal support frame by means of thermal spraying, tape casting, screen printing or chemical vapor deposition method, and self-sealing of the solid oxide fuel cell/electrolytic cell is realized through a dense structure of electrolyte.
    Type: Application
    Filed: December 3, 2020
    Publication date: August 25, 2022
    Applicant: INSTITUTE OF NEW MATERIALS, GUANGDONG ACADEMY OF SCIENCES
    Inventors: Min LIU, Chen SONG, Taikai LIU, Dongdong DONG, Chunming DENG, Kesong ZHOU, Yapeng ZHANG, Kui WEN, Changguang DENG, Wenyou MA
  • Publication number: 20210270380
    Abstract: Disclosed are a GM type cryogenic refrigerator rotary valve and a preparation method therefor. The GM type cryogenic refrigerator rotary valve comprises an aluminum alloy rotating valve and an alumina ceramic membrane. A valve body of the aluminum alloy rotating valve is provided with a first surface for arranging a working boss and a second surface opposite to the first surface; and a high-pressure hole and a low-pressure groove are both provided in the working boss, and a vent hole is provided in the first surface; the high-pressure hole and the vent hole both penetrate the valve body, and an air chamber is formed on the second surface. The alumina ceramic membrane is plated on surface of the aluminum alloy rotating valve. The preparation method comprises: plating an alumina ceramic membrane on surface of an aluminum alloy rotating valve by means of a micro-arc oxidation process.
    Type: Application
    Filed: December 6, 2018
    Publication date: September 2, 2021
    Inventors: Jifu Zhang, Xingchi Chen, Min Liu, Mingjiang Dai, Chunming Deng, Changguang Deng
  • Publication number: 20210047722
    Abstract: The present disclosure discloses a method for coating an environmental barrier coating, comprising: coating an aluminum film layer on a surface of a rare earth silicate ceramic layer, and heat treating the aluminum film layer to form a rare earth aluminate phase at least in pores of a side of the rare earth silicate ceramic layer facing the aluminum film layer. An environmental barrier coating prepared by the above method is also disclosed.
    Type: Application
    Filed: January 6, 2020
    Publication date: February 18, 2021
    Inventors: Xiaofeng Zhang, Chao Wang, Chunming Deng, Min Liu, Ziqian Deng, Shaopeng Niu, Jie Mao, Changguang Deng, Kesong Zhou