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Acta Metall Sin  1992, Vol. 28 Issue (8): 49-54    DOI:
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PHASE DIAGRAM OF TERNARY SYSTEM PrCl_3-SrCl_2-CaCl_2
ZHENG Chaogui; BAO Chenglin (Peking University; Beijing); QIAO Zhiyu(University of Science and Technology Beijing); YE Yupu(Peking University; Beijing).
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ZHENG Chaogui; BAO Chenglin (Peking University; Beijing); QIAO Zhiyu(University of Science and Technology Beijing); YE Yupu(Peking University; Beijing).. PHASE DIAGRAM OF TERNARY SYSTEM PrCl_3-SrCl_2-CaCl_2. Acta Metall Sin, 1992, 28(8): 49-54.

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Abstract  Five fields corresponding to the primary crystallization of PrCl_3, Sr_3PrCl_9, α(SrCl_2, CaCl_2),α_1(CaCl2, SrCl_2) and β_2(SrC12, CaCl_2) respectively, six univariant lines related to the secondary crystallization, one ternary eutectic (48.0 wt-%PrCl_3, 23.5 wt-% SrCl_2; 590℃) and ternary peritectic point (45.5 wt-%PrCl_3, 24.5 wt-% SrCl_2; 614℃ ) were determined by DTA. Attempts were also made to explore the rule governing the alteration in the phase diagram containing rare earth chloride, formation of compound and its stability by means of the theory of polarization and counter-polarization.
Key words:  PrCl_3      PrCl_3-SrCl_2-CaCl_2      phase diagram      phase diagram rule     
Received:  18 August 1992     
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