Patents by Inventor Jan SKAROHLID

Jan SKAROHLID 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).

  • Nuclear reactor having a layer protecting the surface of zirconium alloys
    Patent number: 10916352
    Abstract: A layer protecting the surface of zirconium alloys used as materials for nuclear reactors is formed by a homogenous polycrystalline diamond layer prepared by chemical vapor deposition method. This diamond layer is 100 nm to 50 ?m thick and the size of the crystalline cores in the layer ranges from 10 nm to 500 nm. Maximum content of non-diamond carbon is 25 mol %, total content of non-carbon impurities is maximum up to 0.5 mol %, RMS surface roughness of the polycrystalline diamond layer has a value less than 40 nm and thermal conductivity of the layer ranges from 1000 to 1900 W?m?1?K?1. Coating of the zirconium alloys surface with the described polycrystalline diamond layer serves as a zirconium alloys surface protection against undesirable changes and processes in the nuclear reactor environment.
    Type: Grant
    Filed: November 10, 2018
    Date of Patent: February 9, 2021
    Assignees: CZECH TECHNICAL UNIVERSITY IN PRAGUE, FACULTY OF MECHANICAL ENGINEERING, DEPARTMENT OF ENERGY ENGINEERING, INSTITUTE OF PHYSICS OF THE ACADEMY OF SCIENCE OF THE CZECH REPUBLIC, V.V.I.
    Inventors: Radek Skoda, Jan Skarohlid, Irena Kratochvilova, Frantisek Fendrych, Andrew James Taylor
  • LAYER PROTECTING THE SURFACE OF ZIRCONIUM ALLOYS USED IN NUCLEAR REACTORS AND NUCLEAR REACTOR COMPRISING SAME
    Publication number: 20190080806
    Abstract: A layer protecting the surface of zirconium alloys used as materials for nuclear reactors is formed by a homogenous polycrystalline diamond layer prepared by chemical vapor deposition method. This diamond layer is 100 nm to 50 ?m thick and the size of the crystalline cores in the layer ranges from 10 nm to 500 nm. Maximum content of non-diamond carbon is 25 mol %, total content of non-carbon impurities is maximum up to 0.5 mol %, RMS surface roughness of the polycrystalline diamond layer has a value less than 40 nm and thermal conductivity of the layer ranges from 1000 to 1900 W?m?1?K?1. Coating of the zirconium alloys surface with the described polycrystalline diamond layer serves as a zirconium alloys surface protection against undesirable changes and processes in the nuclear reactor environment.
    Type: Application
    Filed: November 10, 2018
    Publication date: March 14, 2019
    Applicants: Czech Technical University in Prague, Faculty of Mechanical Engineering, Depart, Institute of Physics of the Academy of Sciences of The Czech Republic,V.V.I.
    Inventors: Radek SKODA, Jan Skarohlid, Irena Kratochvilova, Frantisek Fendrych, Andrew James Taylor
  • LAYER PROTECTING THE SURFACE OF ZIRCONIUM ALLOYS USED IN NUCLEAR REACTORS
    Publication number: 20160232991
    Abstract: A layer protecting the surface of zirconium alloys used as materials for nuclear reactors is formed by a homogenous polycrystalline diamond layer prepared by chemical vapor deposition method. This diamond layer is 100 nm to 50 ?m thick and the size of the crystalline cores in the layer ranges from 10 nm to 500 nm. Maximum content of non-diamond carbon is 25 mol %, total content of non-carbon impurities is maximum up to 0.5 mol %, RMS surface roughness of the polycrystalline diamond layer has a value less than 40 nm and thermal conductivity of the layer ranges from 1000 to 1900 W?m?1??K?1. Coating of the zirconium alloys surface with the described polycrystalline diamond layer serves as a zirconium alloys surface protection against undesirable changes and processes in the nuclear reactor environment.
    Type: Application
    Filed: September 16, 2014
    Publication date: August 11, 2016
    Applicants: CZECH TECHNICAL UNIVERSITY IN PRAGUE, FACULTY OF M ECHANICAL ENGINEERING, DEPARTMENT OF ENERGY ENGIE, INSTITUTE OF PHYSICS OF THE ACADEMY OF SCIENCES OF THE CZECH REPUBLIC, V.V.I.
    Inventors: Radek SKODA, Jan SKAROHLID, Irena KRATOCHVILOVA, Frantisek FENDRYCH, Andrew James TAYLOR