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[en] The effects of sintering time on the orthorhombic structure and positron lifetime parameter in YBa2Cu3O7-δ have been studied by XRD, SEM and the positron experiments. It is found that on the condition of 950 degree C/12-72 h, the positron experiment has good stability and reliability. This experiment indicates that the longer sintering time is needed to prepare Y-123 samples
Journal
Nuclear Techniques; ISSN 0253-3219; 
; v. 25(6); p. 471-475
; v. 25(6); p. 471-475