EFFECTS OF HIGH VALENCE CATIONS DOPED ON THE PHASE FORMATION AND THE   CRYSTAL STRUCTURE IN THE Bi SYSTEM (II)

doi:10.3866/PKU.WHXB19920303

CORC > 北京大学 > 化学与分子工程学院

	EFFECTS OF HIGH VALENCE CATIONS DOPED ON THE PHASE FORMATION AND THE CRYSTAL STRUCTURE IN THE Bi SYSTEM (II)
	Chen Fengxiang ; Li Neng ; Rao Jianghong ; Lin Bingxiong ; Tang Youqi ; He Jun ; Zhong Shanjin
刊名	物理化学学报
	1992
关键词	Superconductor Bi(Pb)SrCaCuO system High valence cation doping 2223 phase formation Structure
DOI	10.3866/PKU.WHXB19920303
英文摘要	In our previous work we have found that the 2223 phase is formed more rapidly and the structural stability can be enhanced by doping high valence cation(Sn4+, Sb5+, V5+, W6+, Mo6+ etc.) in the Bi(Pb)SrCaCuO system. In this paper the effects of high valence cations doped on the phase formation and the crystal structure are discussed further. The Aurivillus building and rocksalt building unit coexist in the Bi double layers. The structural variety strongly affects the structural stability. Owing to Pb2+ addition the probability of Aurivillus building is increased, the stability of 2223 phase can be promoted. However, the structure is still not stable, since the addition of Pb2+ has decreased the valence state of Bi site and the oxygen positions are not fully occupied. By doping high valence cation, especially, when the valence of Pbx2+Myn+ equals to + 3 the structure of the 2223 phase can be stabilized. This result has been observed with examining elemental content of 2223 phase. The melting point of the grain boundaries are much lower after doping high valence cations,therefore the ion diffusion is more rapid and acceleration of the 2223 phase formation is observed.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000207574300003&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Chemistry, Physical; SCI(E); 中文核心期刊要目总览(PKU); 中国科学引文数据库(CSCD); 0; 3; 296-300; 8
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/312852]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Chen Fengxiang,Li Neng,Rao Jianghong,et al. EFFECTS OF HIGH VALENCE CATIONS DOPED ON THE PHASE FORMATION AND THE CRYSTAL STRUCTURE IN THE Bi SYSTEM (II)[J]. 物理化学学报,1992.
APA	Chen Fengxiang.,Li Neng.,Rao Jianghong.,Lin Bingxiong.,Tang Youqi.,...&Zhong Shanjin.(1992).EFFECTS OF HIGH VALENCE CATIONS DOPED ON THE PHASE FORMATION AND THE CRYSTAL STRUCTURE IN THE Bi SYSTEM (II).物理化学学报.
MLA	Chen Fengxiang,et al."EFFECTS OF HIGH VALENCE CATIONS DOPED ON THE PHASE FORMATION AND THE CRYSTAL STRUCTURE IN THE Bi SYSTEM (II)".物理化学学报 (1992).