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Title: Effect of electron irradiation exposure on phase formation, microstructure and mechanical strength of Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8} superconductor prepared via co-precipitation method

In this work the effect of electron irradiation on the mechanical properties of Bi2Sr2CaCu2O8 (Bi-2212) superconductor was studied by exposing the Bi-2212 superconductor with different doses of electron irradiation. Bi-2212 samples were prepared by using co-precipitation method. Irradiation was performed with irradiation dose of 100 kGray and 200 kGray, respectively. Characterization of the samples was performed by using X-Ray Diffraction (XRD) and Scanning Electron Microscopy (SEM). Instron Universal Testing machine was used to measure the strength of the samples. The XRD patterns for the non-irradiated and irradiated samples show well-defined peaks of which could be indexed on the basis of a Bi-2212 phase structure. XRD patterns also indicate that electron irradiation did not affect the Bi-2212 superconducting phase. SEM micrographs show disorientation in the texture of the microstructure for irradiated samples. Sample exposed to 200 kGray electron irradiation dose shows enhancement of grain size. Their grain growth and texture improved slightly compared to other sample. The results also show that enlargement of grain size resulted in higher mechanical strength.
Authors:
; ;  [1] ;  [2]
  1. Center for Nuclear Energy, College of Engineering, Universiti Tenaga Nasional, Jalan IKRAM-UNITEN, 43000 Kajang, Selangor (Malaysia)
  2. Materials Technology Group, Industrial Technology Division, Malaysian Nuclear Agency, Bangi, 43000 Kajang, Selangor (Malaysia)
Publication Date:
OSTI Identifier:
22391634
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1659; Journal Issue: 1; Conference: NuSTEC2014: Nuclear Science, Technology, and Engineering Conference 2014, Skudai, Johor (Malaysia), 11-13 Nov 2014; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; BISMUTH OXIDES; CALCIUM OXIDES; COMPARATIVE EVALUATIONS; COPPER OXIDES; COPRECIPITATION; ELECTRONS; GRAIN GROWTH; GRAIN SIZE; HIGH-TC SUPERCONDUCTORS; IRRADIATION; MATERIALS TESTING; MECHANICAL PROPERTIES; PHYSICAL RADIATION EFFECTS; RADIATION DOSES; SCANNING ELECTRON MICROSCOPY; STRONTIUM OXIDES; TEXTURE; X-RAY DIFFRACTION