TY - JOUR
T1 - Properties of HTS for successful U/n processing
AU - Weinstein, R.
AU - Ren, Y.
AU - Sawh, R.
AU - Gandini, A.
AU - Hennig, W.
AU - Murakami, M.
AU - Mochida, T.
AU - Chikumoto, N.
AU - Sakai, N.
AU - Krabbes, G.
AU - Bieger, W.
AU - Milliken, D.
AU - Dou, S. X.
AU - Tönies, S.
AU - Eisterer, M.
AU - Weber, H. W.
N1 - Funding Information:
* Work was supported in part by the State of Texas via the ATP Program and TCSUH, the U.S. Army Research Office, the Welch Foundation, ISTEC, IFW Dresden, the Australian Research Council and Australian Inst. of Nucl. Science and Engineering. the Austrian Science Foundation and the Austrian Research Council. Irradiations were done at the reactors of Texas A&M University, and the Atominstitut, Vienna.
PY - 2000
Y1 - 2000
N2 - Insertion of uranium into HTS precursor powders prior to texturing, and irradiation with thermal neutrons after texturing is called U/n processing. Damage caused by uranium fission fragments has been extensively studied for pinning center behavior in Y123, and Ag-BiSCCO tape. In both HTS systems results for Jc, anisotropy, etc. are excellent. We consider the chemical and physical conditions under which U/n processing is successful, including spacing, S, and size of deposits of U compounds, and neutron absorption by the HTS. If δ=length of the quasi-columnar fission fragment defects, we find S<25 ∼5.4μm is needed for the best U/n results and, thus, if deposits of U compounds exist, sub-micron size is desirable. Application of these conditions is considered to Y123, Ag-BiSCCO tape, Nd123, Sm123 and Gd123. Studies in progress of Nd123 and Sm123 are reported.
AB - Insertion of uranium into HTS precursor powders prior to texturing, and irradiation with thermal neutrons after texturing is called U/n processing. Damage caused by uranium fission fragments has been extensively studied for pinning center behavior in Y123, and Ag-BiSCCO tape. In both HTS systems results for Jc, anisotropy, etc. are excellent. We consider the chemical and physical conditions under which U/n processing is successful, including spacing, S, and size of deposits of U compounds, and neutron absorption by the HTS. If δ=length of the quasi-columnar fission fragment defects, we find S<25 ∼5.4μm is needed for the best U/n results and, thus, if deposits of U compounds exist, sub-micron size is desirable. Application of these conditions is considered to Y123, Ag-BiSCCO tape, Nd123, Sm123 and Gd123. Studies in progress of Nd123 and Sm123 are reported.
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U2 - 10.1016/S0921-4534(00)00960-6
DO - 10.1016/S0921-4534(00)00960-6
M3 - Article
AN - SCOPUS:0343397303
VL - 341-348
SP - 1415
EP - 1418
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
SN - 0921-4534
IS - PART 2
ER -