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:
Jan. 28, 2003
Filed:
Mar. 13, 2002
Adriana C. Serquis, Los Alamos, NM (US);
Yuntian T. Zhu, Los Alamos, NM (US);
Frederick M. Mueller, Los Alamos, NM (US);
Dean E. Peterson, Los Alamos, NM (US);
Xiao Zhou Liao, Los Alamos, NM (US);
The Regents of the University of California, Los Alamos, NM (US);
Abstract
A process of preparing superconducting magnesium diboride powder by heating an admixture of solid magnesium and amorphous boron powder or pellet under an inert atmosphere in a Mg:B ratio of greater than about 0.6:1 at temperatures and for time sufficient to form said superconducting magnesium diboride. The process can further include exposure to residual oxygen at high synthesis temperatures followed by slow cooling. In the cooling process oxygen atoms dissolved into MgB segregated to form nanometer-sized coherent Mg(B,O) precipitates in the MgB matrix, which can act as flux pinning centers.