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Chemical durability of a superconducting oxide YBa2Cu3Ox in aqueous solutions of varying pH values
- Source :
- Journal of Materials Science. 24:1889-1894
- Publication Year :
- 1989
- Publisher :
- Springer Science and Business Media LLC, 1989.
-
Abstract
- The chemical durability of a superconducting oxide YBa2Cu3Ox in the aqueous solution was investigated as a function of pH value by measuring the amount of leaching of the cations in the solution by inductively coupled plasma (ICP) analysis. The chemical durability of YBa2Cu3Ox was very low in highly acidic solutions of pH ca, 1, where the cations were dissolved in the same cation ratio as that of the compound. In an ion-exchanged water and NaOH solution, barium ions were leached out preferentially and almost no yttrium and copper ions were leached out. When NH4OH was used as a basic reagent, the amounts of barium ions leached out were higher than in the NaOH solution of the same pH value and the dissolution of copper ions was observed, unlike in the NaOH solution of the same pH value. These observations were explained in terms of the chemical stability of individual oxide components.
- Subjects :
- inorganic chemicals
Aqueous solution
Mechanical Engineering
Inorganic chemistry
technology, industry, and agriculture
Oxide
chemistry.chemical_element
Barium
Copper
chemistry.chemical_compound
chemistry
Mechanics of Materials
Reagent
General Materials Science
Chemical stability
Leaching (metallurgy)
Dissolution
Subjects
Details
- ISSN :
- 15734803 and 00222461
- Volume :
- 24
- Database :
- OpenAIRE
- Journal :
- Journal of Materials Science
- Accession number :
- edsair.doi...........35aabc15c42a1f4606819ce22184c714
- Full Text :
- https://doi.org/10.1007/bf01105719