Study on the Synthesis of Batches of the System Y-Ba-Cu-O Using Sol-Gel Method

Plamen Pashev; Rositsa Raykova; Yancho Hristov; Bogdan Bogdanov

doi:10.4028/www.scientific.net/AST.91.19

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Study on the Synthesis of Batches of the System Y-Ba-Cu-O Using Sol-Gel Method
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HomeAdvances in Science and TechnologyAdvances in Science and Technology Vol. 91Study on the Synthesis of Batches of the System...

Study on the Synthesis of Batches of the System Y-Ba-Cu-O Using Sol-Gel Method

Abstract:

The study presented deal with preparation of batches of the system Y-Ba-Cu-O using sol-gel method and citric acid as precursor. Batches with particle size of 100 nm containing each of the phases Y123 and Y211 were prepared. The stoichiometric amounts of Y, Ba and Cu oxides were dissolved in 65% HNO₃ until clear blue solution was observed under heating to 80 ̊С. The nitrate solutions obtained were neutralized to pH = 6 with 25% solution of NH₃ (p.a.), then С₆Н₈О₇ was added as the gels obtained were thermally treated. The transformation processes taking place under change of temperature were studied by IR, XRD, DTA and SEM.

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Periodical:

Advances in Science and Technology (Volume 91)

Pages:

19-23

DOI:

https://doi.org/10.4028/www.scientific.net/AST.91.19

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Online since:

October 2014

Authors:

Plamen Pashev, Rositsa Raykova*, Yancho Hristov, Bogdan Bogdanov

Keywords:

Batches, Sol-Gel Method, Y-Ba-Cu-O

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