Growth and Characterization of LaFeO3 Crystals

Wei Liang Liu; Xiao Jun Zeng; Shuo Qi Liu; Yan Feng Zhu; An Hua Wu

doi:10.4028/www.scientific.net/KEM.602-603.27

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 602-603Growth and Characterization of LaFeO3 Crystals

Growth and Characterization of LaFeO₃ Crystals

Abstract:

The LaFeO₃ polycrystalline feed rod was prepared by sintering La₂O₃ and Fe₂O₃ powder at 1400 °C for 24 h. The LaFeO₃ crystal was grown by the floating zone method. The crystal preferred to crystallize along <100> direction. The X-ray rocking curve of the (100) crystal plane has a FWHM of 26 arcsec, confirming the high crystal quality of the sample. Some voids were observed on the polished surface. The thermal properties of LaFeO₃crystal during 298~773 K were tested. The specific heat of LaFeO₃crystal variation range was 0.58~0.76 J/(g·K), The thermal diffusivity of LaFeO₃crystal variation range was 3.47~0.85 mm²/s, The thermal conductivity of LaFeO₃crystal variation range was 13.10~4.21 W/(m·K).

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Periodical:

Key Engineering Materials (Volumes 602-603)

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27-31

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.602-603.27

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Online since:

March 2014

Authors:

Wei Liang Liu*, Xiao Jun Zeng, Shuo Qi Liu, Yan Feng Zhu, An Hua Wu

Keywords:

Floating Zone Method, LaFeO₃ Crystal, Thermal Property

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