YBA2CU3O7-X STABILITY AGAINST ULTRADILUTE HNO3

Authors
BHALLA GL KUMAR B MALIK A AGRAWAL VK TRIGUNAYAT GC NARLIKAR AV
Citation
Gl. Bhalla et al., YBA2CU3O7-X STABILITY AGAINST ULTRADILUTE HNO3, Physica status solidi. a, Applied research, 143(1), 1994, pp. 131-136
Citations number
15
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physica status solidi. a, Applied research → ACNP
ISSN journal
00318965
Volume
143
Issue
1
Year of publication
1994
Pages
131 - 136
Database
ISI
SICI code
0031-8965(1994)143:1<131:YSAUH>2.0.ZU;2-C
Abstract
Effect of ultradilute HNO3 on the stability of YBa2Cu3O7-x is studied. Uncoated and Polymethylmeth acrylate (PMMA) capsulated by plasma poly merization of monomer (MMA) YBCO samples are treated with 50 and 100 m umol HNO3 acid for 6, 12, and 24 h. The stability of high-T(c) cuprate s is examined by XRD, TGA, SEM, and measurements of T(c) and oxygen co ntent. Results indicate that polymer encapsulation by plasma polymeriz ation is quite effective in retaining the stability of the high-T(c) c uprates.