Abstract
Morphology of Gd2BaCuO5 (Gd-211) secondary phase particles in an oxygen-controlled-melt-growth processed (Nd0.33Eu0.33Gd0.33)Ba2 Cu3Oy + 0.5 mol% of Pt (NEG-123) was studied as a function of varying amount (0-3 mol%) of CeO2. Optical and scanning electron microscopy revealed that sub-micron Gd-211 particles were distributed uniformly throughout the NEG-123 matrix for additions of up to 2 mol% of CeO2. With increasing CeO2 content the critical current density, Jc, increased particularly at low magnetic fields. The maximum value of Jc was achieved for 1 mol% CeO2 and reached 100 kA cm-2 at zero field and 77 K. The improved low-field critical current density is attributed to the refinement of Gd-211 particles.
| Original language | English |
|---|---|
| Pages (from-to) | 665-668 |
| Number of pages | 4 |
| Journal | Physica C: Superconductivity and its Applications |
| Volume | 357-360 |
| Issue number | SUPPL. 2 |
| DOIs | |
| Publication status | Published - 2001 Aug |
| Externally published | Yes |
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Keywords
- CeO
- Fine normal-conducting particles
- Gd-211
- High critical current density
- LRE-BaCuO
- Peak effect
ASJC Scopus subject areas
- Condensed Matter Physics
Cite this
Effect of CeO2 addition on microstructure and magnetic properties in (Nd,Eu,Gd)-Ba-Cu-O. / Miryala, Muralidhar; Jirsa, M.; Iida, K.; Murakami, Masato.
In: Physica C: Superconductivity and its Applications, Vol. 357-360, No. SUPPL. 2, 08.2001, p. 665-668.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Effect of CeO2 addition on microstructure and magnetic properties in (Nd,Eu,Gd)-Ba-Cu-O
AU - Miryala, Muralidhar
AU - Jirsa, M.
AU - Iida, K.
AU - Murakami, Masato
PY - 2001/8
Y1 - 2001/8
N2 - Morphology of Gd2BaCuO5 (Gd-211) secondary phase particles in an oxygen-controlled-melt-growth processed (Nd0.33Eu0.33Gd0.33)Ba2 Cu3Oy + 0.5 mol% of Pt (NEG-123) was studied as a function of varying amount (0-3 mol%) of CeO2. Optical and scanning electron microscopy revealed that sub-micron Gd-211 particles were distributed uniformly throughout the NEG-123 matrix for additions of up to 2 mol% of CeO2. With increasing CeO2 content the critical current density, Jc, increased particularly at low magnetic fields. The maximum value of Jc was achieved for 1 mol% CeO2 and reached 100 kA cm-2 at zero field and 77 K. The improved low-field critical current density is attributed to the refinement of Gd-211 particles.
AB - Morphology of Gd2BaCuO5 (Gd-211) secondary phase particles in an oxygen-controlled-melt-growth processed (Nd0.33Eu0.33Gd0.33)Ba2 Cu3Oy + 0.5 mol% of Pt (NEG-123) was studied as a function of varying amount (0-3 mol%) of CeO2. Optical and scanning electron microscopy revealed that sub-micron Gd-211 particles were distributed uniformly throughout the NEG-123 matrix for additions of up to 2 mol% of CeO2. With increasing CeO2 content the critical current density, Jc, increased particularly at low magnetic fields. The maximum value of Jc was achieved for 1 mol% CeO2 and reached 100 kA cm-2 at zero field and 77 K. The improved low-field critical current density is attributed to the refinement of Gd-211 particles.
KW - CeO
KW - Fine normal-conducting particles
KW - Gd-211
KW - High critical current density
KW - LRE-BaCuO
KW - Peak effect
UR - http://www.scopus.com/inward/record.url?scp=0035423378&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0035423378&partnerID=8YFLogxK
U2 - 10.1016/S0921-4534(01)00362-8
DO - 10.1016/S0921-4534(01)00362-8
M3 - Article
VL - 357-360
SP - 665
EP - 668
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
SN - 0921-4534
IS - SUPPL. 2
ER -