Sol-Gel preparation and characterization of fluorine substituted Bi(Pb)SCCO-2223 HTSC

Lina Ben-Dor; J. H. Greenberg; V. Beilin; D. Shafranek

doi:10.1016/0921-4534(94)91690-X

Sol-Gel preparation and characterization of fluorine substituted Bi(Pb)SCCO-2223 HTSC

Lina Ben-Dor^*
, J. H. Greenberg
, V. Beilin
, D. Shafranek

^*Corresponding author for this work

Institute of Chemistry

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

Bi_2-xPb_xSr₂Ca₂Cu₃O_yF_0.7 was prepared by sol-gel using citric acid and ethylene glycol. Thermodynamic calculations showed that a considerable loss of fluorine is to be expected. The samples were characterized by structural, thermal and physical methods. AAS showed that no appreciable amount of lead was lost during sintering. For x=0.35 the height Tc was observed, viz. 116K (onset). Using a selective fluoride electrode it was found that only up to 10% of the initial fluorine remained. The EPMA results showed that up to 90% of the sample contained (BiPb)SCCO-2223 the rest being (SrCa)₂Cu₃O_y. Fluorine could not be detected by this method. Fluorine lead to significant enhancement of the phase formation.

Original language	English
Pages (from-to)	931-932
Number of pages	2
Journal	Physica C: Superconductivity and its Applications
Volume	235-240
Issue number	PART 2
DOIs	https://doi.org/10.1016/0921-4534(94)91690-X
State	Published - Dec 1994

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title = "Sol-Gel preparation and characterization of fluorine substituted Bi(Pb)SCCO-2223 HTSC",

abstract = "Bi2-xPbxSr2Ca2Cu3OyF0.7 was prepared by sol-gel using citric acid and ethylene glycol. Thermodynamic calculations showed that a considerable loss of fluorine is to be expected. The samples were characterized by structural, thermal and physical methods. AAS showed that no appreciable amount of lead was lost during sintering. For x=0.35 the height Tc was observed, viz. 116K (onset). Using a selective fluoride electrode it was found that only up to 10\% of the initial fluorine remained. The EPMA results showed that up to 90\% of the sample contained (BiPb)SCCO-2223 the rest being (SrCa)2Cu3Oy. Fluorine could not be detected by this method. Fluorine lead to significant enhancement of the phase formation.",

author = "Lina Ben-Dor and Greenberg, \{J. H.\} and V. Beilin and D. Shafranek",

year = "1994",

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doi = "10.1016/0921-4534(94)91690-X",

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T1 - Sol-Gel preparation and characterization of fluorine substituted Bi(Pb)SCCO-2223 HTSC

AU - Ben-Dor, Lina

AU - Greenberg, J. H.

AU - Beilin, V.

AU - Shafranek, D.

PY - 1994/12

Y1 - 1994/12

N2 - Bi2-xPbxSr2Ca2Cu3OyF0.7 was prepared by sol-gel using citric acid and ethylene glycol. Thermodynamic calculations showed that a considerable loss of fluorine is to be expected. The samples were characterized by structural, thermal and physical methods. AAS showed that no appreciable amount of lead was lost during sintering. For x=0.35 the height Tc was observed, viz. 116K (onset). Using a selective fluoride electrode it was found that only up to 10% of the initial fluorine remained. The EPMA results showed that up to 90% of the sample contained (BiPb)SCCO-2223 the rest being (SrCa)2Cu3Oy. Fluorine could not be detected by this method. Fluorine lead to significant enhancement of the phase formation.

AB - Bi2-xPbxSr2Ca2Cu3OyF0.7 was prepared by sol-gel using citric acid and ethylene glycol. Thermodynamic calculations showed that a considerable loss of fluorine is to be expected. The samples were characterized by structural, thermal and physical methods. AAS showed that no appreciable amount of lead was lost during sintering. For x=0.35 the height Tc was observed, viz. 116K (onset). Using a selective fluoride electrode it was found that only up to 10% of the initial fluorine remained. The EPMA results showed that up to 90% of the sample contained (BiPb)SCCO-2223 the rest being (SrCa)2Cu3Oy. Fluorine could not be detected by this method. Fluorine lead to significant enhancement of the phase formation.

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SN - 0921-4534

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JO - Physica C: Superconductivity and its Applications

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IS - PART 2

ER -

Sol-Gel preparation and characterization of fluorine substituted Bi(Pb)SCCO-2223 HTSC

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