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Preparation of YBa2Cu3O6 + x by a Formic Acid Method

Otamiri, JC and Andersson, Arne LU (1990) In Journal of Materials Research 5(7). p.1388-1391
Abstract
Synthesis of YBa2Cu3O6+x from formic acid solutions of stoichiometric amounts of the initial materials has been investigated in the temperature range 750–950°C. The reaction is strongly influenced by the concentration of formic acid. Dilute solutions favor synthesis of purer samples under moderate conditions of temperature and sintering time. At lower temperature the same effect can be achieved if sintering time is longer, while at higher temperature, multiple grinding and heating at very short intervals are necessary to avoid formation of Y2BaCuO5. The observed effect of HCOOH concentration is explained by the different mechanisms involved in the decomposition of the formates obtained.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Materials Research
volume
5
issue
7
pages
1388 - 1391
publisher
Materials Research Society
external identifiers
  • wos:A1990DP72600005
  • scopus:0025463230
ISSN
0884-2914
DOI
10.1557/JMR.1990.1388
language
English
LU publication?
yes
id
aa67cf40-9529-4c95-8c82-03042cae26f6 (old id 3914622)
date added to LUP
2013-07-01 13:56:48
date last changed
2017-01-01 07:17:53
@article{aa67cf40-9529-4c95-8c82-03042cae26f6,
  abstract     = {Synthesis of YBa2Cu3O6+x from formic acid solutions of stoichiometric amounts of the initial materials has been investigated in the temperature range 750–950°C. The reaction is strongly influenced by the concentration of formic acid. Dilute solutions favor synthesis of purer samples under moderate conditions of temperature and sintering time. At lower temperature the same effect can be achieved if sintering time is longer, while at higher temperature, multiple grinding and heating at very short intervals are necessary to avoid formation of Y2BaCuO5. The observed effect of HCOOH concentration is explained by the different mechanisms involved in the decomposition of the formates obtained.},
  author       = {Otamiri, JC and Andersson, Arne},
  issn         = {0884-2914},
  language     = {eng},
  number       = {7},
  pages        = {1388--1391},
  publisher    = {Materials Research Society},
  series       = {Journal of Materials Research},
  title        = {Preparation of YBa2Cu3O6 + x by a Formic Acid Method},
  url          = {http://dx.doi.org/10.1557/JMR.1990.1388},
  volume       = {5},
  year         = {1990},
}