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Phase transition in Pd40Ni10Cu30P20 bulk metallic glass under HP & HT |
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| Authors: | Sun Liling Wu Tianjiao Wang Wenkui Zhang Jun Utsumi Wataru and Okada Taku |
| Institution: | (1) Institute of Physics, Chinese Academy of Sciences, 100080 Beijing, China;(2) College of Chemistry and Molecular Engineering, Peking University, 100871 Beijing, China;(3) College of Material Science and Chemical Engineering, Yanshan University, 066004 Qinhuangdao, China;(4) Synchrotron Radiation Research Center, Japan Atomic Energy Research Institute, 1-1-1 Kout, Mikasuki, Sayo, 679-5148 Hyogo, Japan |
| Abstract: | The phase transitions in Pd40Ni10Cu30P20 bulk metallic glass (BMG) have been studied under high pressure and high temperature (HP & HT) by X-ray diffaction measurements with synchrotron radiation source. We found that the BMG underwent a phase transitions of amorphous-crystalline-amorphous at 10 GPa upon heating. The parallel experiments were carried out at 7 GPa, while we did not observe the amorphous-crystalline-amorphous transitions by increasing temperature. Quenching the melted BMG at 7 GPa, it was found that the phase crystallized from the melt differed from the primary phase crystallized from the starting amorphous solid upon heating suggesting there existed a distinct mechanism in two cases. |
| Keywords: | phase transition Pd40Ni10Cu30P20 high pressure and high temperature |
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