By Topic

The effect of platinum and excess 211 phase on the loss of the liquid phase in melt textured YBa/sub 2/Cu/sub 3/O/sub 7-x/

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

5 Author(s)
W. C. Hicks ; Dept. of Mater. Sci. & Eng., Washington Univ., Seattle, WA, USA ; F. Dogan ; M. Strasik ; A. C. Day
more authors

Platinum is an important additive in YBa/sub 2/Cu/sub 3/O/sub 7-x/ [123] powders for melt processing and growth of large oriented crystals, but its role in liquid loss during the growth cycle is poorly understood. A series of experiments were conducted to determine how platinum effects liquid loss, and to study the solubility limit of platinum in 123. Both atomically mixed and solid state platinum sources were compared. Crystals were grown on a nonreactive setter so that liquid loss could be clearly distinguished by weight from reaction products with the setter. Based on weight loss studies there was little difference between atomically added platinum and by adding platinum powder to the 123 powder. In samples with no excess Y/sub 2/BaCuO/sub 5/ (211), weight loss due to liquid loss was at a minimum of 3.8 percent with 0.3 weight percent platinum content. Examination with an electron microprobe reveals different microstructures for the two different methods of platinum additions.

Published in:

IEEE Transactions on Applied Superconductivity  (Volume:9 ,  Issue: 2 )