Abstract
We have studied the subgrain structures in large single-grain RE-Ba-Cu-O (RE = Y, Nd, Sm) bulk superconductors with polarized optical microscopic observations and micro-area X-ray pole figure measurements. Subgrains were formed in the early stage of grain growth, and were elongated along the growth direction with increasing their misalignment. Based on the comparative study of misorientation angles with the geometry of the second-phase particles, as well as microstructural defect studies using transmission electron microscope, the subgrains are created by the particle incorporation and their related lattice defects through the instability at the solidification front.
| Original language | English |
|---|---|
| Pages (from-to) | 685-689 |
| Number of pages | 5 |
| 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
- Microscopy
- Misorientation
- Pole figure
- REBCO
- Subgrain
ASJC Scopus subject areas
- Condensed Matter Physics
Cite this
Structure and formation mechanism of subgrains in large single-grain RE-Ba-Cu-O (RE = Y, Sm, Nd) bulk superconductors. / Ogasawara, K.; Sakai, Naomichi; Murakami, Masato.
In: Physica C: Superconductivity and its Applications, Vol. 357-360, No. SUPPL. 2, 08.2001, p. 685-689.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Structure and formation mechanism of subgrains in large single-grain RE-Ba-Cu-O (RE = Y, Sm, Nd) bulk superconductors
AU - Ogasawara, K.
AU - Sakai, Naomichi
AU - Murakami, Masato
PY - 2001/8
Y1 - 2001/8
N2 - We have studied the subgrain structures in large single-grain RE-Ba-Cu-O (RE = Y, Nd, Sm) bulk superconductors with polarized optical microscopic observations and micro-area X-ray pole figure measurements. Subgrains were formed in the early stage of grain growth, and were elongated along the growth direction with increasing their misalignment. Based on the comparative study of misorientation angles with the geometry of the second-phase particles, as well as microstructural defect studies using transmission electron microscope, the subgrains are created by the particle incorporation and their related lattice defects through the instability at the solidification front.
AB - We have studied the subgrain structures in large single-grain RE-Ba-Cu-O (RE = Y, Nd, Sm) bulk superconductors with polarized optical microscopic observations and micro-area X-ray pole figure measurements. Subgrains were formed in the early stage of grain growth, and were elongated along the growth direction with increasing their misalignment. Based on the comparative study of misorientation angles with the geometry of the second-phase particles, as well as microstructural defect studies using transmission electron microscope, the subgrains are created by the particle incorporation and their related lattice defects through the instability at the solidification front.
KW - Microscopy
KW - Misorientation
KW - Pole figure
KW - REBCO
KW - Subgrain
UR - http://www.scopus.com/inward/record.url?scp=0035423379&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0035423379&partnerID=8YFLogxK
U2 - 10.1016/S0921-4534(01)00313-6
DO - 10.1016/S0921-4534(01)00313-6
M3 - Article
VL - 357-360
SP - 685
EP - 689
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
SN - 0921-4534
IS - SUPPL. 2
ER -