Deposition of La2Zr2O7 Film by Chemical Solution Deposition

Details Deposition of La2Zr2O7 Film by Chemical Solution Deposition Deposition of La2Zr2O7 Film by Chemical Solution Deposition

2010-03-25

arxiv.org/abs/1003.4859v1

Journal of Sol-Gel Science and Technology 54, 3 (2010) 363

Physics

Condensed Matter

Materials Science

Scientific paper

10.1007/s10971-010-2204-y

La2Zr2O7 (LZO) formation of bulk powders and of films by Chemical Solution Deposition (CSD) process have been studied using propionates. The treatment involved a one step cycle in the reducing forming gas (Ar-5%H2) to be compatible with Ni-5at%W RABITS. Large amount of residual carbon was found in LZO powders formed in these conditions (10 wt %). The volume fraction of the cube texture in LZO films on Ni-5at%w RABITS was found to be a function of the speed of the gas flown above sample. This phenomenon is discussed in considering the C deposited from the carbon-containing gases emitted during the pyrolysis of the precursor. Using proper conditions (950 ^\circC and the speed of gas of 6.8\times10^{-2} m/s), LZO films with good surface crystallinity could be obtained on Ni-5at%W RABITS as demonstrated by X-ray diffraction, electron backscattered diffraction and RHEED. The existence of residual carbon in oxide films is a common question to films deposited by CSD processes under reducing condition.

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