Evaluation of the Corrosivity of CaF2 in Hot Water and 10mol%HF Solution

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Evaluation the corrosivity of CaF2 in hot water and 10mol%HF solution was studies.Theprepared powder and sintered ceramic was characterized by XRD and SEM technologies. we could conclude that impurities (such as CaO and CaCO3) effected the porperties of CaF2, the grain size is smaller, the corrosion resistance is lower. The CaF2 of corrosion resistance was stronger in HF solution than hot water.

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244-247

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February 2016

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© 2016 Trans Tech Publications Ltd. All Rights Reserved

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[1] J.P.A. Godinho, S. Piazolo, L.Z. Evins, Effect of surface orientation on dissolution rates and topography of CaF2, Geochimica et Cosmochimica Acta , 86 (2012): 392–403.

DOI: 10.1016/j.gca.2012.02.032

Google Scholar

[2] A. Puchina, V. Puchin, H. Huisinga, R. Bennewitz, M. Reichling, Ultraviolet photoelectron spectroscopy and electron stimulated desorption from CaF2, Surf. Sci. 402–404 (1998): 687–691.

DOI: 10.1016/s0039-6028(97)00950-3

Google Scholar

[3] Y. Namba, T. Yoshida, S. Yoshida, Surfaces of Calcium Fluoride Single Crystals Ground with an Ultra-Precision Surface Grinder, CIRP Annala-Manufacturing Technology, (54)2005: 503-506.

DOI: 10.1016/s0007-8506(07)60155-3

Google Scholar

[4] S. Banijamali, B.E. Yekta, R.H. Rezaie, V.K. Marghussian, Crystallization and sintering characteristics of CaO–Al2O3–SiO2glasses in the presence of TiO2, CaF2 and ZrO2, Thermochim Acta, 488(2009): 60–65.

DOI: 10.1016/j.tca.2008.12.031

Google Scholar

[5] S. Banijamali H.R. Rezaei,B. Eftekhari Yekta, Sinterability, crystallization and properties of glass–ceramic tiles belonging to CaF2–CaO–MgO–Al2O3–SiO2 system, Ceramica International, 33(2007): 1557-1561.

DOI: 10.1016/j.ceramint.2006.06.004

Google Scholar

[6] O. Dominguez, A. Torres-Castillo, L.V. Flores-Veleza, R. Torres, Characterization using thermomechanical and differential thermal analysis of the sinterization of Portland clinker doped with CaF2 , Mater Charact, 61 (2010) : 459–466.

DOI: 10.1016/j.matchar.2010.02.002

Google Scholar

[7] Larbi Kacimi, Angelique Simon-Masseron, Abdelhamid Ghomari, Influence of NaF, KF and CaF2 addition on the clinker burning temperature and its properties , Comptes Rendus Chimie, 9 (2006): 154-163.

DOI: 10.1016/j.crci.2005.10.001

Google Scholar