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QIN Zhi-Cheng, LIU Yong, HUANG Xin-Ming, WANG Wen-Kui. Formation of the Metastable Phases in Pd-18 at.% Si Alloy Solidified under High Pressure[J]. Chinese Journal of High Pressure Physics, 1994, 8(2): 107-112 . doi: 10.11858/gywlxb.1994.02.004
Citation: QIN Zhi-Cheng, LIU Yong, HUANG Xin-Ming, WANG Wen-Kui. Formation of the Metastable Phases in Pd-18 at.% Si Alloy Solidified under High Pressure[J]. Chinese Journal of High Pressure Physics, 1994, 8(2): 107-112 . doi: 10.11858/gywlxb.1994.02.004

Formation of the Metastable Phases in Pd-18 at.% Si Alloy Solidified under High Pressure

doi: 10.11858/gywlxb.1994.02.004
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  • Corresponding author: QIN Zhi-Cheng
  • Received Date: 23 Feb 1993
  • Rev Recd Date: 28 Oct 1993
  • Publish Date: 05 Jun 1994
  • The solidification characteristic of liquid Pd-18 at.% Si alloy under high pressure was investigated by using X-ray diffraction, DTA, TEM, SEM and X-ray energy spectrum. The mixture of MS-Ⅰ and MS-Ⅱ metastable phases was obtained during the solidification of the alloy under 5.5 GPa with a cooling rate of 100 K/s. The former has a fee structure with the lattice parameter of a=0.388 3 nm. MS-Ⅰand MS-Ⅱ will transform into the equilibrium phase Pd and Pd3Si above 700 K.

     

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