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:
Nov. 15, 1994
Filed:
Sep. 13, 1993
Xingwu Wang, Alfred, NY (US);
Other;
Abstract
A process for preparing an insulating powder. In the first step of this process, a solution comprising a first compound (which preferably is an yttrium compound), a barium compound, and a copper compound subjected to ultrasonic sound waves at a frequency in excess of 20,000 hertz, and to a substantially atmospheric pressure of at least about 600 millimeters of mercury to cause such solution to form into an aerosol. Thereafter, a plasma is generated within a radio-frequency plasma reactor, and the aerosol is contacted with the plasma gas within the reactor while subjecting said aerosol to a substantially atmospheric pressure of at least about 600 millimeters of mercury and to a radio frequency alternating current at a frequency of from about 100 kilohertz to about to about 30 megahertz to form a vapor, which is thereafter flowed downwardly onto and collected on a collector.