【摘 要】
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The 150 ℃ isothermal section of Li-Si-Ni ternary system has been experimentally established.The investigation is based on X-ray powder diffraction and scanning electron microscopy techniques on about
【机 构】
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School of Materials Science and Engineering, Xiangtan University, Xiangtan, 411105
【出 处】
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第十七届全国相图学术会议暨相图与材料设计国际研讨会
论文部分内容阅读
The 150 ℃ isothermal section of Li-Si-Ni ternary system has been experimentally established.The investigation is based on X-ray powder diffraction and scanning electron microscopy techniques on about 80 ternary alloys, prepared by argon-arc melting of proper elemental ingots.The existence of six ternary compounds is conformed.Fourteen three-phase regions have been detected.Furthermore,thermodynamic description of the Li-Ni and Li-Si-Ni systems is carried out with the CALPHAD approach on the basis of the present experimental results and the first-principle calculation of the formation enthalpies for τ1 and τ3 ternary compounds.Reasonable agreement of the phase equilibria in the Li-Si-Ni ternary system between the experiment and thermodynamic calculation is achieved.
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