ACOUSTIC-EMISSION FROM HIGH T(C) SUPERCONDUCTORS DURING CURRENT FLOW

Authors
WOZNY L LUBICKI P MAZUREK B
Citation
L. Wozny et al., ACOUSTIC-EMISSION FROM HIGH T(C) SUPERCONDUCTORS DURING CURRENT FLOW, Cryogenics, 33(8), 1993, pp. 825-827
Citations number
8
Categorie Soggetti
Physics, Applied
Journal title
Cryogenics → ACNP
ISSN journal
00112275
Volume
33
Issue
8
Year of publication
1993
Pages
825 - 827
Database
ISI
SICI code
0011-2275(1993)33:8<825:AFHTSD>2.0.ZU;2-C
Abstract
This paper presents the procedures followed in the preparation of and the main superconducting properties in polycrystalline bulk YBa2Cu3Ox samples. A method of measuring the acoustic emission from superconduct ing ceramics is described. The acoustic emission due to the temperatur e rise during the transition from the superconducting to the normal st ate was recorded. Investigations were carried out for the case of curr ent flow as well as for the non-current state. The acoustic signals ar e connected with the occurrence of voltage drops in the sample.