Patents by Inventor Detian WAN

Detian WAN 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).

  • High-strength prestressed composite ceramic and preparation method thereof
    Publication number: 20210130239
    Abstract: The present invention discloses a high-strength prestressed composite ceramic and a preparation method thereof, and belongs to a ceramic reinforcing technology in the field of high-performance structural ceramics. Firstly, more than two kinds of bondable ceramics need to be determined to form a composite ceramic of a matrix material and a surface layer material, the matrix material should have sufficient strength and a higher expansion coefficient, and the surface layer material should have a lower expansion coefficient and a higher elastic modulus, realizing the balance of the surface layer compressive stress and the matrix tensile stress are formed after high-temperature co-sintering; and the surface layer compressive stress can greatly improve the bending strength of the composite ceramic.
    Type: Application
    Filed: August 22, 2020
    Publication date: May 6, 2021
    Inventors: Yiwang BAO, Fenghua KUANG, Hongbo ZHANG, Detian WAN
  • Method and apparatus for testing residual stress in coatings
    Patent number: 10222343
    Abstract: Disclosed are a method and an apparatus for testing residual stress in coatings.
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: March 5, 2019
    Assignee: China Build Material Test & Certification Group Co., Ltd.
    Inventors: Yiwang Bao, Delong Ma, Detian Wan, Xiaogen Liu
  • METHOD AND APPARATUS FOR TESTING RESIDUAL STRESS IN COATINGS
    Publication number: 20170241925
    Abstract: Disclosed are a method and an apparatus for testing residual stress in coatings.
    Type: Application
    Filed: November 14, 2016
    Publication date: August 24, 2017
    Applicant: China Building Material Test & Certification Group Co., Ltd.
    Inventors: Yiwang BAO, Delong MA, Detian WAN, Xiaogen LIU