Chem. J. Chinese Universities ›› 1998, Vol. 19 ›› Issue (8): 1296.

• Articles • Previous Articles     Next Articles

Phase Diagram, Structure and Fluorescence Spectra of CsxRb1-xYbI3System

XU Min, WANG Shi-Hua, WANG Mei-Tian, LIU Chun-Sheng   

  1. Department of Chemistry, Beijing Normal University, Beijing, 100875
  • Received:1997-06-13 Online:1998-08-24 Published:1998-08-24

Abstract: The CsxRb1-xYbI3system in the composition 0≤ x ≤1 was synthesized and the phase diagram of CsxRb1-xYbI3was measured by the different thermal analyses(DTA). This phase diagram was completed and certified by the X-ray powder diffraction and flourescent spectra. This system is a limited solid solution with peritectic reaction and eutectoid reaction. The temperature of peritectic point and eutectoid point are 627 ℃ and 371 ℃ respectively. There are three kinds of solid solution in the system: a RbYbI 3 type solid solution and a high temperature phase of RbYbI3type solid solution when 0≤ x ≤0.5 and a CsYbI3type solid solution when0.75≤ x ≤1.0.

Key words: Reduced rare earth iodides, One-step synthesis method, Phase diagram, Solid solution

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