| || Superconductor Materials : A revolutionary value addition to space electronics
Author : Biswas, Rathindra Nath
Source : Defence Science Journal ; Vol:54(2) ; 2004 ; pp 235-247
Subject : 53 Applied Physics;620.1 Material Science and Technology
Keywords : Superconductors;Critical temperature;Substrate materials;HTS materials;Quality factor Q;Antenna efficiency;YBaCuO infrared detector;Superconductor materials
Abstract : An early success in low temperature superconductor technology has led to the development of a number of high temperature superconductors (HTS) materials, which have critical temperature above 77K. When the temperature of a solid is lowered below critical temperature, the materials loses its electrical resistivity. Because resistance is almost zero, superconductors can carry very high current, generating very large homogeneous magnetic fields. Due to these features, it is possible to design electronic devices with extremely thin profile, offering less weight and low manufacturing cost. Such exceptional properties have made HTS materials useful in military and space sectors, where airborne systems have already provided with cryogenic infrastructure which can be used for cooling a superconductor at no extra cost.