Orientation Dependence of the Thermal Expansion Coefficients of Iron Borate FeBo3 Crystals
DOI:
https://doi.org/10.18502/keg.v3i4.2226Abstract
We present high-resolution X-ray diffraction measurements of the lattice parameters of iron borate FeBO3. These measurements were performed at room temperature and at various temperatures ranging from 400 up to 600∘C, enabling the determination of the coefficients of thermal expansion (CTE). The three-dimensional (3D) indicatory
surface of thermal expansion of FeBO3was constructed in MathCad. It is shown that the orientation dependence of CTE in FeBO3 is spheroid elongated on threefold axis.
References
Pérez S, Hilario D G, Sans O, Ortiz J A, Vegas H M, Errandonea A, Ruiz-Fuertes D, Martínez-García J et al 2014 Compressibility systematics of calcite-type borates : An experimental and theoretical structural study on ABO3 (A = Al, Sc, Fe and In) Journal of Physical Chemistry
Diehl R 1975 Crystal Struсture Refinement of Ferrite Borate, FeBO3. Sol. Stat. Com. 17
Joubert J C, Shirk T, White W B, Rustum Roy 1968 Stability, infrared spectrum and magnetic properties of FeBO3 Mat. Res. Bull.3 pp 671-676
Kalashnikova A M,Markovin P A, Pisarev R V, RasingTHM 2007 Optical Study of the Electronic Structure and Magnetic Ordering in a weak Ferromagnet FeBO3 Journal of Experimental and Theoretical Physics Letters 86 pp 712-717
Gerasimov V N, Dolivo-Dobrovol’skaya E M, Kamentsev I E, Kordat’eva V V, Kosoi A L, Lesyuk G I, Rozhdestvenskaya I V, Stroganov E V, Filatov S K, Frank-Kamenetskaya O V et al. 1975 A Manual on X-Ray Diffraction Investigations of Minerals edV A FrankKamenetskii (Leningrad: Nedra)
Holland T J B and RedfernS A T 1997 Unit cell refinement from powder diffraction data: the use of regression diagnostics Mineralogical Magazine
Zamkovskaya A and Maksimova E 2015 Anisotropic thermal expansion in crystals of different categories Journal of Physics: Conference Series 661 (2015) 012067 pp 1-6
