Preparation of YBa2Cu3O7-δ powders by the thermal decomposition of a heteronuclear complex, CuY1/3Ba2/3(dhbaen)(NO3)1/3(H2O)3

Etsuko Hasegawa; Hiromichi Aono; Tetsuya Igoshi; Masatomi Sakamoto; Enrico Traversa; Yoshihiko Sadaoka

doi:10.1016/S0925-8388(99)00076-6

Preparation of YBa₂Cu₃O_7-δ powders by the thermal decomposition of a heteronuclear complex, CuY_1/3Ba_2/3(dhbaen)(NO₃)_1/3(H₂O)₃

Etsuko Hasegawa, Hiromichi Aono, Tetsuya Igoshi, Masatomi Sakamoto, Enrico Traversa, Yoshihiko Sadaoka

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

17 Scopus citations

Abstract

YBa₂Cu₃O_7-δ powders were prepared by the thermal decomposition of a heteronuclear complex, CuY_1/3Ba_2/3(dhbaen)(NO₃)_1/3(H₂O)₃. The products of the complex thermal decomposition were analyzed by TG-DTA, XRD, SEM-Auger and XPS. The decomposition of the CuY_1/3Ba_2/3-complex was obtained at about 500°C and the product was a mixture of oxides and carbonates. The formation of YBa₂Cu₃O_7-δ proceeded at 800°C, with a gradual decomposition of the carbonates. A homogeneous distribution of each element, Y, Ba, and Cu, was observed for the decomposed CuY_1/3Ba_2/3-complex by SEM-Auger analysis. The binding energy values of Ba3d_5/2 and O1s photolines from Ba and O in the superconductive lattice did not shift during the sputtering period. Furthermore, the formation of Ba rich regions on the surface was depressed by using the complex as a starting material for homogeneous 123-oxide, YBa₂Cu₃O_7-δ.

Original language	English (US)
Pages (from-to)	150-158
Number of pages	9
Journal	Journal of Alloys and Compounds
Volume	287
Issue number	1-2
DOIs	https://doi.org/10.1016/S0925-8388(99)00076-6
State	Published - Jun 1 1999
Externally published	Yes

Bibliographical note

Funding Information:
The present work was supported by Grant-in-Aids from The Ministry of Education, Science and Culture of Japan (Nos. 10650811 and 10045045), and by HOSOKAWA Powder Technology Foundation.

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.1016/S0925-8388(99)00076-6

Cite this

@article{6f6eea2c19f7499882321badcfa11443,

title = "Preparation of YBa2Cu3O7-δ powders by the thermal decomposition of a heteronuclear complex, CuY1/3Ba2/3(dhbaen)(NO3)1/3(H2O)3",

abstract = "YBa2Cu3O7-δ powders were prepared by the thermal decomposition of a heteronuclear complex, CuY1/3Ba2/3(dhbaen)(NO3)1/3(H2O)3. The products of the complex thermal decomposition were analyzed by TG-DTA, XRD, SEM-Auger and XPS. The decomposition of the CuY1/3Ba2/3-complex was obtained at about 500°C and the product was a mixture of oxides and carbonates. The formation of YBa2Cu3O7-δ proceeded at 800°C, with a gradual decomposition of the carbonates. A homogeneous distribution of each element, Y, Ba, and Cu, was observed for the decomposed CuY1/3Ba2/3-complex by SEM-Auger analysis. The binding energy values of Ba3d5/2 and O1s photolines from Ba and O in the superconductive lattice did not shift during the sputtering period. Furthermore, the formation of Ba rich regions on the surface was depressed by using the complex as a starting material for homogeneous 123-oxide, YBa2Cu3O7-δ.",

author = "Etsuko Hasegawa and Hiromichi Aono and Tetsuya Igoshi and Masatomi Sakamoto and Enrico Traversa and Yoshihiko Sadaoka",

note = "Funding Information: The present work was supported by Grant-in-Aids from The Ministry of Education, Science and Culture of Japan (Nos. 10650811 and 10045045), and by HOSOKAWA Powder Technology Foundation.",

year = "1999",

month = jun,

day = "1",

doi = "10.1016/S0925-8388(99)00076-6",

language = "English (US)",

volume = "287",

pages = "150--158",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier",

number = "1-2",

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TY - JOUR

T1 - Preparation of YBa2Cu3O7-δ powders by the thermal decomposition of a heteronuclear complex, CuY1/3Ba2/3(dhbaen)(NO3)1/3(H2O)3

AU - Hasegawa, Etsuko

AU - Aono, Hiromichi

AU - Igoshi, Tetsuya

AU - Sakamoto, Masatomi

AU - Traversa, Enrico

AU - Sadaoka, Yoshihiko

N1 - Funding Information: The present work was supported by Grant-in-Aids from The Ministry of Education, Science and Culture of Japan (Nos. 10650811 and 10045045), and by HOSOKAWA Powder Technology Foundation.

PY - 1999/6/1

Y1 - 1999/6/1

N2 - YBa2Cu3O7-δ powders were prepared by the thermal decomposition of a heteronuclear complex, CuY1/3Ba2/3(dhbaen)(NO3)1/3(H2O)3. The products of the complex thermal decomposition were analyzed by TG-DTA, XRD, SEM-Auger and XPS. The decomposition of the CuY1/3Ba2/3-complex was obtained at about 500°C and the product was a mixture of oxides and carbonates. The formation of YBa2Cu3O7-δ proceeded at 800°C, with a gradual decomposition of the carbonates. A homogeneous distribution of each element, Y, Ba, and Cu, was observed for the decomposed CuY1/3Ba2/3-complex by SEM-Auger analysis. The binding energy values of Ba3d5/2 and O1s photolines from Ba and O in the superconductive lattice did not shift during the sputtering period. Furthermore, the formation of Ba rich regions on the surface was depressed by using the complex as a starting material for homogeneous 123-oxide, YBa2Cu3O7-δ.

AB - YBa2Cu3O7-δ powders were prepared by the thermal decomposition of a heteronuclear complex, CuY1/3Ba2/3(dhbaen)(NO3)1/3(H2O)3. The products of the complex thermal decomposition were analyzed by TG-DTA, XRD, SEM-Auger and XPS. The decomposition of the CuY1/3Ba2/3-complex was obtained at about 500°C and the product was a mixture of oxides and carbonates. The formation of YBa2Cu3O7-δ proceeded at 800°C, with a gradual decomposition of the carbonates. A homogeneous distribution of each element, Y, Ba, and Cu, was observed for the decomposed CuY1/3Ba2/3-complex by SEM-Auger analysis. The binding energy values of Ba3d5/2 and O1s photolines from Ba and O in the superconductive lattice did not shift during the sputtering period. Furthermore, the formation of Ba rich regions on the surface was depressed by using the complex as a starting material for homogeneous 123-oxide, YBa2Cu3O7-δ.

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DO - 10.1016/S0925-8388(99)00076-6

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