Effect of sintering temperature on superconducting properties of Bi2Pb2Sr2Ca2Cu3-xCoxO10+δ system

Autor:	A A Hussien, M.M. Abbas, Amal K. Jassim
Rok vydání:	2020
Předmět:	Superconductivity Imagination Thesaurus (information retrieval) Search engine Chemical substance Materials science media_common.quotation_subject Sintering Engineering physics media_common
Zdroj:	IOP Conference Series: Materials Science and Engineering. 757:012066
ISSN:	1757-899X 1757-8981
DOI:	10.1088/1757-899x/757/1/012066
Popis:	Bi2Pb0.3Sr2Ca2Cu3-xCoxO10+δ high temperature superconductors with x=0, 0.2 and 0.4 were prepared by a solid state reaction method. The samples properties have been investigated structurally by X-ray diffraction and morphologically by scanning electron microscopy. Structural analysis showed that two superconducting phases coexist in the samples high temperature Bi-2223 and low-temperature phase 2212 with orthorhombic structure for all samples. Four point probe method was used to study the electrical properties of the samples and all of them showed superconductivity behavior. The transition temperature increases with the increasing Co concentration and sintering temperature. Bi2Pb0.3Sr2Ca2Cu3-xCoxO10+δ superconductor sintered at 130 0C shows highest critical temperature 114 K.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::740fc033eee64e56ad2f0ecf9cf145af https://doi.org/10.1088/1757-899x/757/1/012066 Zobrazit plný text záznamu