TY - JOUR
T1 - Microstructural and magnetic analysis of a superconducting foam and comparison with IG-processed bulk samples
AU - Koblischka-Veneva, A.
AU - Koblischka, M. R.
AU - Ide, N.
AU - Inoue, Kazuo
AU - Muralidhar, M.
AU - Hauet, T.
AU - Murakami, Masato
N1 - Publisher Copyright:
© Published under licence by IOP Publishing Ltd.
PY - 2016/3/17
Y1 - 2016/3/17
N2 - YBa2Cu3Oy (YBCO) foam samples show an open, porous foam structure, which may have benefits for many applications of high-T c superconductors. As the basic material of these foams is a pseudo-single crystalline material with the directional growth initiated by a seed crystal similar to standard melt-textured samples, the achieved texture of the YBCO is a very important parameter. We analyzed the local texture and grain orientation of the individual struts forming the foam by means of atomic force microscopy and electron backscatter diffraction (EBSD). Furthermore, the magnetic properties of a foam strut are evaluated by means of SQUID measurements, from which the flux pinning forces were determined. A scaling of the pinning forces in the temperature range between 60 K and 85 K was performed. These data and the details of the microstructure are compared to IG-processed, bulk material.
AB - YBa2Cu3Oy (YBCO) foam samples show an open, porous foam structure, which may have benefits for many applications of high-T c superconductors. As the basic material of these foams is a pseudo-single crystalline material with the directional growth initiated by a seed crystal similar to standard melt-textured samples, the achieved texture of the YBCO is a very important parameter. We analyzed the local texture and grain orientation of the individual struts forming the foam by means of atomic force microscopy and electron backscatter diffraction (EBSD). Furthermore, the magnetic properties of a foam strut are evaluated by means of SQUID measurements, from which the flux pinning forces were determined. A scaling of the pinning forces in the temperature range between 60 K and 85 K was performed. These data and the details of the microstructure are compared to IG-processed, bulk material.
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U2 - 10.1088/1742-6596/695/1/012002
DO - 10.1088/1742-6596/695/1/012002
M3 - Conference article
AN - SCOPUS:84964703595
SN - 1742-6588
VL - 695
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
IS - 1
M1 - 012002
T2 - 9th International Workshop on Processing and Applications of Superconducting (RE)BCO Large Grain Materials, PASREG 2015
Y2 - 2 September 2015 through 4 September 2015
ER -