AN INVESTIGATION ON AGING OF MULTIFILAMENTARY 2223-BSCCO SPECIMENS UNDER MECHANICAL AND ENVIRONMENTAL STRESSES

The effect of mechanical, thermal, and environmental stresses on speci mens of multifilamentary 2223-BSCCO tapes, fabricated by the powder-in -tube technology, is discussed in this paper, Short-term and long-term (aging) tests were performed for the purpose of evaluating the streng th and endurance of the specimens under compression, tensile, and vibr ation stresses and in combinations of temperature and humidity, The di agnostic properties employed to evaluate material behavior and degrada tion are critical current and quantities associated with hysteresis lo ops, It is shown how mechanical stresses can affect specimen performan ce in light of application to cables for energy transport, In particul ar, the endurance lines under tensile and vibration stresses are drawn , achieving indexes useful for evaluation of superconducting tapes and cable design.