Dehydration and solid solution formation for the LaBr3-CeBr3 binary system

Pin Yang; Christopher B. DiAntonio; Timothy J. Boyle; Mark A. Rodriguez; Margaret R. Sanchez

doi:10.1117/12.740827

22 September 2007 Dehydration and solid solution formation for the LaBr₃-CeBr₃ binary system

Pin Yang, Christopher B. DiAntonio, Timothy J. Boyle, Mark A. Rodriguez, Margaret R. Sanchez

Proceedings Volume 6707, Penetrating Radiation Systems and Applications VIII; 670709 (2007) https://doi.org/10.1117/12.740827
Event: Optical Engineering + Applications, 2007, San Diego, California, United States

Abstract

Anhydrous cerium bromide (CeBr₃) and cerium doped lanthanum bromide (Ce+³-LaBr₃) were obtained by the dehydration of hydrates synthesized by a direct acidification process. The dehydration process involves heating in vacuum through three phase changes - hydrate, amorphous, and crystalline LaBr₃. Incomplete removal of the bound water leads to the formation of oxybromides and the partial reduction of the lanthanum at high temperatures. It was found that upon the completion of dehydration (< 200 °C) a complete solid solution can be formed between LaBr₃ and CeBr₃. These two compounds form a simple binary phase diagram. Challenges associated with the dehydration process are discussed.

Citation Download Citation

Pin Yang, Christopher B. DiAntonio, Timothy J. Boyle, Mark A. Rodriguez, and Margaret R. Sanchez "Dehydration and solid solution formation for the LaBr₃-CeBr₃ binary system", Proc. SPIE 6707, Penetrating Radiation Systems and Applications VIII, 670709 (22 September 2007); https://doi.org/10.1117/12.740827

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