The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 10, 2025
Filed:
Apr. 20, 2020
Joint-stock Company “tvel”, Moscow, RU;
Vladislav Konstantinovich Orlov, Moscow, RU;
Alexander Olegovich Titov, Moscow, RU;
Michail Yurjevich Kornienko, Moskovskaya oblast, RU;
Nikolay Nikolaevich Krasnobaev, Moscow, RU;
Alexander Alexandrovich Maslov, Moscow, RU;
Vladimir Vladimirovich Novikov, Moscow, RU;
Denis Sergeevich Saenko, Moscow, RU;
Joint-Stock Company “TVEL”, Moscow, RU;
Abstract
A method of ion-plasma application of corrosion-resistant film coatings on articles made from zirconium alloys includes placing articles in a planetary carousel mechanism, heating the articles, and ion-beam etching and surface activation of the articles using water-cooled unbalanced magnetrons. In addition, the surface of the articles is activated using an ion source which generates gas ions with an accelerating voltage of up to 5000 V and with feeding of a bias voltage to the articles. The coating is applied by using unbalanced and balanced magnetrons simultaneously with a residual induction of the magnetic field from 0.03 T to 0.1 T. The coating is applied to articles which are made from zirconium alloys and are placed vertically in a planetary carousel mechanism. The articles are heated in the coating application process to a temperature of 150-600° C., wherein the heaters are accommodated along the entire length of the articles. This produces corrosion-resistant film coatings of uniform thickness along the outer surface of articles made from zirconium alloys and raises productivity due to an increase in the discharge power density of magnetrons.