Fabrication and Crystal Structure of Sol-Gel Deposited BST thin Films with Compositional Gradient

• Autorzy: Czekaj D. , Lisińska-Czekaj A. , Plewa J.

Identyfikatory

DOI

10.1515/amm-2017-0095

• Języki publikacji: EN

Abstrakty

EN

In the present research technology of compositionally graded barium strontium titanate Ba_1-xSr_xTiO₃ thin films deposited on stainless steel substrates by sol-gel spin coating followed with thermal annealing at T = 650°C is reported. Results of thermal behavior of the sol-gel derived powders with compositions used for fabrication of graded structure (i.e. with Sr mole fraction x =0.5, 0.4 and 0.3) are described. X-ray diffraction studies of the phase composition and crystal structure of such complex thin film configuration are given. It was found that gel powders exhibited a large total weight loss of about Δm ≈ 44-47%. Three stages of weight loss took place at temperature ranges: below T ≈ 300°C, at ΔT ≈ 300-500°C and between T = 600°C and T = 800°C. Phase analysis has shown that the dominating phase is Ba_0.67Sr_0.33TiO₃ compound while the second phase is Ba_0.7Sr_0.3TiO₃ or Ba_0.5Sr_0.5TiO₃ for “up-graded” and “down-graded” structure, respectively.

Słowa kluczowe

EN

Ba1-xSrxTiO3 thin films; compositionally graded structure; sol-gel method; simultaneous thermal analysis; X-ray diffraction

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2017
• Tom: Vol. 62, iss. 2A
• Strony: 673--678
• Opis fizyczny: Bibliogr. 16 poz., rys., tab.

Twórcy

autor

Czekaj D.

• University of Silesia in Katowice, Institute of Technology and Mechatronics, 12 Żytnia Str., 41-200 Sosnowiec, Poland

autor

Lisińska-Czekaj A.

• University of Silesia in Katowice, Institute of Technology and Mechatronics, 12 Żytnia Str., 41-200 Sosnowiec, Poland

autor

Plewa J.

• University of Applied Sciences Münster, Department of Chemical Engineering, Stegerwaldstrasse 39, D-48565, Steinfurt, Germany

Bibliografia

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• [12] ISCD Database, FIZ Karlsruhe, (URL: http://www.fiz-karlsruhe.de).
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Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).