Patents by Inventor Julian C. Mason-Flucke

Julian C. Mason-Flucke 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).

  • Method for assessing degradation of a coating on a component by measuring its surface roughness
    Patent number: 8056407
    Abstract: A method of assessing the degradation of an oxide-forming coating on a component after a period of operational use of the component, said degradation of the coating being caused by depletion of the oxide-forming element within a remnant coating layer due to inter-diffusion of said element between the remnant coating and both an outer oxide layer and an inner, secondary diffusion layer, wherein a depletion parameter indicative of the depletion of the oxide-forming element in the remnant coating layer varies as a function of the surface roughness of the coated component, the method comprising the steps of: carrying out a non-destructive, quantitative measurement of the surface roughness of the component after said period of operational use; and, based on an estimation of the functional relationship between the surface roughness and the depletion parameter, using the result of said measurement of surface roughness to quantitatively assess the degradation of the coating.
    Type: Grant
    Filed: September 16, 2008
    Date of Patent: November 15, 2011
    Assignee: Rolls-Royce PLC
    Inventors: Stephen M. Bagnall, Julian C. Mason-Flucke, Catherine M. F. Rae, Siavash Pahlavanyali
  • Method for assessing degradation of a coating on a component by measuring its surface roughness
    Publication number: 20090078032
    Abstract: A method of assessing the degradation of an oxide-forming coating on a component after a period of operational use of the component, said degradation of the coating being caused by depletion of the oxide-forming element within a remnant coating layer due to inter-diffusion of said element between the remnant coating and both an outer oxide layer and an inner, secondary diffusion layer, wherein a depletion parameter indicative of the depletion of the oxide-forming element in the remnant coating layer varies as a function of the surface roughness of the coated component, the method comprising the steps of: carrying out a non-destructive, quantitative measurement of the surface roughness of the component after said period of operational use; and, based on an estimation of the functional relationship between the surface roughness and the depletion parameter, using the result of said measurement of surface roughness to quantitatively assess the degradation of the coating.
    Type: Application
    Filed: September 16, 2008
    Publication date: March 26, 2009
    Applicant: ROLLS-ROYCE PLC
    Inventors: Stephen M. Bagnall, Julian C. Mason-Flucke, Catherine M.F. Rae, Siavash Pahlavanyali