Patents by Inventor Guocai Li

Guocai Li 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: 9061943
    Abstract: A process for metalizing a ceramic surface or attaching a ceramic to a metal is provided. The process may comprise: immersing the ceramic into an aluminum or aluminum alloy melt, making the ceramic move or stay still relative to the melt to adhere the melt to the ceramic; and then removing the ceramic from the melt to unaffectedly cool the film adhered thereto. The process can attach an aluminum or aluminum alloy thin film having a thickness of several to tens of micrometers on a ceramic surface. The thin film is formed by solidification, and does not have microscopic faults such as oxide film inclusions or pores, therefore having proper physical of mechanical properties of aluminum. Ceramics or a ceramic and a metal can be brazed via the surface metalizing film, the bonding strength of their interface can over the strength of aluminum itself.
    Type: Grant
    Filed: April 30, 2010
    Date of Patent: June 23, 2015
    Assignee: TSINGHUA UNIVERSITY
    Inventors: Xiaoshan Ning, Bo Wang, Sha Li, Guocai Li
  • Publication number: 20120121896
    Abstract: A process for metalizing a ceramic surface or attaching a ceramic to a metal is provided. The process may comprise: immersing the ceramic into an aluminum or aluminum alloy melt, making the ceramic move or stay still relative to the melt to adhere the melt to the ceramic; and then removing the ceramic from the melt to unaffectedly cool the film adhered thereto. The process can attach an aluminum or aluminum alloy thin film having a thickness of several to tens of micrometers on a ceramic surface. The thin film is formed by solidification, and does not have microscopic faults such as oxide film inclusions or pores, therefore having proper physical of mechanical properties of aluminum. Ceramics or a ceramic and a metal can be brazed via the surface metalizing film, the bonding strength of their interface can over the strength of aluminum itself. This invention discloses a process for metalizing the surface of a ceramic and a process for attaching a ceramic to a metal.
    Type: Application
    Filed: April 30, 2010
    Publication date: May 17, 2012
    Applicant: TSINGHUA UNIVERSITY
    Inventors: Xiaoshan Ning, Bo Wang, Sha Li, Guocai Li