Skip to Content
Find More Like This
Return to Search

Synthesis of magnesium diboride by magnesium vapor infiltration process (MVIP)

United States Patent

January 28, 2003
View the Complete Patent at the US Patent & Trademark Office
Los Alamos National Laboratory - Visit the Technology Transfer Division Website
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.sub.2 segregated to form nanometer-sized coherent Mg(B,O) precipitates in the MgB.sub.2 matrix, which can act as flux pinning centers.
Serquis; Adriana C. (Los Alamos, NM), Zhu; Yuntian T. (Los Alamos, NM), Mueller; Frederick M. (Los Alamos, NM), Peterson; Dean E. (Los Alamos, NM), Liao; Xiao Zhou (Los Alamos, NM)
The Regents of the University of California (Los Alamos, NM)
10/ 096,774
March 13, 2002
STATEMENT REGARDING FEDERAL RIGHTS This invention was made with government support under Contract No. W-7405-ENG-36 awarded by the U.S. Department of Energy. The government has certain rights in the invention.