Thin La{sub 2}Zr{sub 2}O{sub 7} films made from a water-based solution

Journal Article · Thu Jan 15 00:00:00 EST 2009 · Journal of Solid State Chemistry

DOI:https://doi.org/10.1016/j.jssc.2008.08.031· OSTI ID:21212152

Feys, J ^[1]; Huehne, R ^[2]; Hoste, S; Van Driessche, I ^[1]

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1. Ghent University, Krijgslaan 281-S3, 9000 Gent (Belgium)
2. Institute for Metallic Materials, IFW Dresden, Helmholtzstrasse 20, 01069 Dresden (Germany)

Thin films of La{sub 2}Zr{sub 2}O{sub 7} (LZO) are highly regarded as possible buffer layers in the coated conductor configuration. This report describes a new synthesis for thin crystalline LZO films, based on a largely water-based solution, mainly containing metal acetates, acetic acid and an organic amine-base: triethanolamine. Initially, a thin layer of amorphous material is deposited on the textured Ni-5 at%W substrate by means of dip-coating. Only by careful control of the thermal treatment can the layer be transformed into a crystalline layer. Important parameters in this respect are the heating rate and the dwell time. The amorphous gel is analysed by HR-TGA/DTA and HR-TEM. The textured layers are analysed by XRD, pole figures, RHEED, AFM and SEM. - Grapical Abstract: Thin films of La2Zr2O7 (LZO) are produced via a water-based solution, containing metal acetates, acetic acid and triethanolamine. The thin layer is deposited on the textured Ni-5 at%W substrate by dip-coating. The amorphous gel is analysed by HR-TGA/DTA and HR-TEM. The textured layers are analysed by XRD, pole figures, RHEED analysis, AFM and SEM.

• OSTI ID: 21212152
• Journal Information: Journal of Solid State Chemistry, Vol. 182, Issue 1; Other Information: DOI: 10.1016/j.jssc.2008.08.031; PII: S0022-4596(08)00471-4; Copyright (c) 2008 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); ISSN 0022-4596
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ACETATES
ACETIC ACID
ATOMIC FORCE MICROSCOPY
DIFFERENTIAL THERMAL ANALYSIS
DIP COATING
ELECTRON DIFFRACTION
GELS
HEAT TREATMENTS
HEATING RATE
LANTHANUM COMPOUNDS
LAYERS
SCANNING ELECTRON MICROSCOPY
SOL-GEL PROCESS
SOLUTIONS
SYNTHESIS
THERMAL GRAVIMETRIC ANALYSIS
THIN FILMS
WATER
X-RAY DIFFRACTION
ZIRCONATES