Thick films of yba2 cu3 o 7-y and preparation method thereof
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Oct 20, 2005
app pub date -
Oct 21, 2004
filing date -
Apr 25, 2002
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
The invention relates to a method of preparing thick films of YBa.sub.2Cu.sub.3O.sub.7-y(y=0.08) having a critical current density of the order of 10.sup.6 A/cm.sup.2. The inventive method comprises using an inert carrier gas to send an aerosol, obtained from an aqueous solution of precursors of yttrium nitrate, barium nitrate and copper nitrate (0.11=FY=0.28, 0.46=FBa=0.58, 0.2=FCu=0.37), having a concentration which is essentially equal to the concentration at saturation, to the surface of a heated substrate whereon it undergoes pyrolysis for between 1 and 5 nm at 800.degree. C. and 870.degree. C., followed by oxygen annealing at a temperature which is greater than the pyrolysis temperature by at least 10.degree. C. and between 850.degree. C. and 880.degree. C. for between 1 and 2 hours, and subsequently at 450.degree. C.-550.degree. C. for between 0.5 and 1.5 hours.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully