Abstract
We studied the Y-Ba-Cu-O/Ag equilibrium diagram in oxygen atmosphere around the composition YBa2Cu3Ox/Ag 35 mass%. We found a high thermal effect: the peritectic decomposition temperature of Y-123 phase is lowered from 1040 to 940°C. We demonstrate here that the nature of the phenomenon is not chemical. We explained it as the result of a mechanical segregation of Y-123 decomposition products from Y-123 phase, performed by silver.
| Original language | English |
|---|---|
| Pages (from-to) | 17-25 |
| Number of pages | 9 |
| Journal | Journal of Thermal Analysis and Calorimetry |
| Volume | 66 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2001 Dec 1 |
| Externally published | Yes |
| Event | 22nd Italian Congress on Calorimetry Thermal Analysis and Chemical Thermodynamics (AICAT-GICAT Meeting 2000) - Camogli, Italy Duration: 2001 Dec 15 → 2001 Dec 31 |
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Keywords
- Mechanical segregation
- Silver
- Superconductor
- Y-Ba-Cu-O equilibrium diagram
ASJC Scopus subject areas
- Condensed Matter Physics
- Physical and Theoretical Chemistry
Cite this
Thermal and microstructural analysis of the Y-Ba-Cu-O/Ag equilibrium around the critical composition YBa2Cu3Ox/Ag 35 mass%. / Costa, G. A.; Mele, Paolo.
In: Journal of Thermal Analysis and Calorimetry, Vol. 66, No. 1, 01.12.2001, p. 17-25.Research output: Contribution to journal › Conference article
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TY - JOUR
T1 - Thermal and microstructural analysis of the Y-Ba-Cu-O/Ag equilibrium around the critical composition YBa2Cu3Ox/Ag 35 mass%
AU - Costa, G. A.
AU - Mele, Paolo
PY - 2001/12/1
Y1 - 2001/12/1
N2 - We studied the Y-Ba-Cu-O/Ag equilibrium diagram in oxygen atmosphere around the composition YBa2Cu3Ox/Ag 35 mass%. We found a high thermal effect: the peritectic decomposition temperature of Y-123 phase is lowered from 1040 to 940°C. We demonstrate here that the nature of the phenomenon is not chemical. We explained it as the result of a mechanical segregation of Y-123 decomposition products from Y-123 phase, performed by silver.
AB - We studied the Y-Ba-Cu-O/Ag equilibrium diagram in oxygen atmosphere around the composition YBa2Cu3Ox/Ag 35 mass%. We found a high thermal effect: the peritectic decomposition temperature of Y-123 phase is lowered from 1040 to 940°C. We demonstrate here that the nature of the phenomenon is not chemical. We explained it as the result of a mechanical segregation of Y-123 decomposition products from Y-123 phase, performed by silver.
KW - Mechanical segregation
KW - Silver
KW - Superconductor
KW - Y-Ba-Cu-O equilibrium diagram
UR - http://www.scopus.com/inward/record.url?scp=0035174210&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0035174210&partnerID=8YFLogxK
U2 - 10.1023/A:1012462926678
DO - 10.1023/A:1012462926678
M3 - Conference article
VL - 66
SP - 17
EP - 25
JO - Journal of Thermal Analysis and Calorimetry
JF - Journal of Thermal Analysis and Calorimetry
SN - 1388-6150
IS - 1
ER -