| 9 | Crystallization of Pd_40Cu_30Ni_10P_20 bulk metallic glass with and without pressure显示文摘The glass-transition behavior of Pd40Cu30Ni10P20 bulk metallic glass was investigated by differential scanning calorimetry (DSC) and X-ray powder diffraction (XRD). The effect of pressure on the crystallization behavior of Pd40Cu30Ni10P20 bulk glass was studied by in situ high-pressure and high-temperature X-ray powder diffraction using synchrotron radiation. Phase analyses show at least six crystalline phases in the crystallized sample, namely, monoclinic, tetragonal Cu3Pd-like, rhombohedral, fcc-Ni2Pd2P, fcc-(Ni, Pd) solid solution, and body-centered tetragonal (bct) Ni3P-like phases. The onset crystallization temperature increases with pressure having a slope of 11 K/GPa in the range of 0 to 4 GPa. The results are attributed to the competing process between the thermody-namic potential barrier and the diffusion activation energy under pressure. | Bin Yang Jianzhong Jiang Yanxin Zhuang Karel Saksl Guoliang Chen | 2007 | Journal of University of Science and Technology Beijing2007，14，4： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员