Synthesis of Bi-Base High-T_c Oxide Superconductors through an Organic Acid Salt Thermal Decomposition Process

Abstract

High-T c Bi-Pb-Sr-Ca-Cu oxide superconductors have been successfully synthesized through a decomposition of organic acid salts. At the intermediate stage of this process, a gel state is obtained from a homogeneous solution. The gel shows a thermoplasticity which may facilitate its fabrication into a fiber form. The offset T c of the specimen made from this process is 102 K, which is appreciably improved by an intermediate pressing between sinterings. The highest T c and J c (77 K, 0 T) so far obtained are 109 K and 810 A/cm2, respectively.

Improvement of superconducting properties in Na-doped BSCCO superconductor

“…Besides chemical doping, the production techniques have also been widely studied by researchers to produce high quality and homogeneous samples. Among these preparation techniques, some of them can be underlined, as the classical solid state [27,28] melt quench [29][30][31], sol-gel [32][33][34][35] and the polymer matrix [36][37][38] methods.…”

Effect of Ce substitution on structural and superconducting properties of Bi-2212 system

“…Besides chemical doping, the synthetic methods have also been widely studied to produce high quality samples. Among these preparation techniques, some of them can be underlined, as the classical solid state [14,15] melt quench [16][17][18][19], sol-gel [20][21][22][23] and the polymer matrix [24][25][26] methods.…”

Bismuth(III) Complexes with Bis(dimethylphenyl) Dithiophosphates: Synthesis, Characterization and Crystal Structure of [{(3,5-CH3)2C6H3O}2PS2]3Bi

“…12,13 Due to its non-toxic and non-carcinogenic nature, the use of bismuth compounds in medicine can be traced back to the middle ages, 14 although less consideration has been paid to bismuth chemistry in comparison with that of rest of the members of group 15 elements. In addition, chemistry of bismuth compounds has advanced considerably due to its potential in applications as precursors in material sciences, [15][16][17][18][19][20][21][22][23][24][25][26][27] as X-ray imaging agents 28 and as catalysts. 29 Further interest in the study of these compounds lies in their significance in medicinal chemistry.…”