Fabrication and Crystal Structure of Sol-Gel Deposited BST Thin Films with Compositional Gradient - Publikacja - MOST Wiedzy

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

Abstrakt

In the present research technology of compositionally graded barium strontium titanate Ba1-xSrxTiO3 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 Ba0.67Sr0.33TiO3 compound while the second phase is Ba0.7Sr0.3TiO3 or Ba0.5Sr0.5TiO3 for “up-graded” and “down-graded” structure, respectively.

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Informacje szczegółowe

Kategoria:
Publikacja w czasopiśmie
Typ:
artykuły w czasopismach
Opublikowano w:
ARCHIVES OF METALLURGY AND MATERIALS nr 62, strony 673 - 678,
ISSN: 1733-3490
Język:
angielski
Rok wydania:
2017
Opis bibliograficzny:
Czekaj D., Lisińska-Czekaj A., Plewa J.: Fabrication and Crystal Structure of Sol-Gel Deposited BST Thin Films with Compositional Gradient// ARCHIVES OF METALLURGY AND MATERIALS -Vol. 62,iss. 2 (2017), s.673-678
DOI:
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1515/amm-2017-0095
Weryfikacja:
Politechnika Gdańska

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