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Chinese Physics C> 2009, Vol. 33> Issue(11) : 1028-1032 DOI: 10.1088/1674-1137/33/11/020

In situ X-ray diffraction investigation of compression behavior in Gd40Y16Al24Co20 bulk metallic glass under high pressure with synchrotronradiation

  • The compression behavior of the heavy RE-based BMG Gd40Y16Al24Co20 under high pressure has been investigated by in situ high pressure angle dispersive X-ray diffraction measurements using synchrotron radiation in the pressure range of 0~33.42 GPa at room temperature. By fitting the static equation of state at room temperature, we find the value of bulk modulus B is 61.27±4 GPa which is in good agreement with the experimental study by pulse-echo techniques of 58 GPa. The results show that the amorphous structure in the heavy RE-based BMG Gd40Y16Al24Co20 keeps quite stable up to 33.42 GPa although its compressibility is as large as about 33%. The coexistence of normal local structure similar to that of other BMGs and covalent bond structure similar to those of oxide glasses may be the reason for the anomalous property under high pressure of the Gd40Y16Al24Co20 BMG.

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    [1] . Greer A L, MA E. MRS Bull., 2007, 32: 611-619; WANGWei-Hua, DONG Chuang, Shek C H. Mater. Sci. Eng., R,2004, 44: 45-892 WANG Wei-Hua. J. Appl. Phys., 2006, 99: 0935063 LI Song, WANG Wei-Hua. Sci. Technol. Adv. Mater., 2005,6: 823-8274 XI Xue-Kui et al. J. Mater. Res., 2005, 20: 2243-22475 ZHANG Bo et al. Phys. Rev. Lett., 2005, 94: 2055026 LI Song, ZHAO De-Qian, WANG Wei-Hua. Scr. Mater.,2005, 53: 1489-14927 WEI Yu-Xin et al. Scr. Mater., 2006, 54: 599-6028 ZHAO Zuo-Feng et al. Appl. Phys. Lett., 2003, 82: 4699-47019 LUO Qiang, PAN Ming-Xiang, WANG Wei-Hua. Appl.Phys. Lett., 2007, 90: 21190310 Hammersley A P et al. High Press. Res., 1996, 14: 235-24811 Bridgman P W. The physics of high pressure, London: G.Bell and Sons, Ltd., 195812 Lambson E F et al. Phys. Rev. B, 1986, 33: 2380-238513 Makishima A, Mackenzie J D. J. Non-Cryst. Solids., 1973,12: 35-4514 Smyth T. J. Am. Ceram. Soc., 1959, 42: 277-28015 El-Mallawany R. Mater. Chem. Phys., 1998, 53: 93-12016 Amir Y H et al. J. Non-Cryst. Solids, 1998, 241: 200-20317 ZHANG Bo, WANG Ru-Ju, WANG Wei-Hua. Phys. Rev.B, 2005, 72: 10420518 WANG Wei-Hua, DONG Chuang, Shek C H. Mater. Sci.Eng. R, 2004, 44: 45-8919 YU Hai-Bin et al. Appl. Phys. Lett., 2008, 92: 14190620 Marc H, Frans S, Michael F. J. Appl. Phys., 2005, 97:03350621 WANG Wen-Kui. J. Mater. Sci., 1980, 15: 2701-2709

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XU Tao, HUANG Lei, DONG Yan-Guo, LI Gong, LI Yan-Chun, LIU Jing and LIU Ri-Ping. In situ X-ray diffraction investigation of compression behavior in Gd40Y16Al24Co20 bulk metallic glass under high pressure with synchrotronradiation[J]. Chinese Physics C, 2009, 33(11): 1028-1032. doi: 10.1088/1674-1137/33/11/020
XU Tao, HUANG Lei, DONG Yan-Guo, LI Gong, LI Yan-Chun, LIU Jing and LIU Ri-Ping. In situ X-ray diffraction investigation of compression behavior in Gd40Y16Al24Co20 bulk metallic glass under high pressure with synchrotronradiation[J]. Chinese Physics C, 2009, 33(11): 1028-1032.  doi: 10.1088/1674-1137/33/11/020 shu
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Received: 2008-12-18
Revised: 2009-04-21
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In situ X-ray diffraction investigation of compression behavior in Gd40Y16Al24Co20 bulk metallic glass under high pressure with synchrotronradiation

    Corresponding author: XU Tao,
  • Received Date: 2008-12-18
  • Accepted Date: 2009-04-21
  • Available Online: 2009-11-05

Abstract: 

The compression behavior of the heavy RE-based BMG Gd40Y16Al24Co20 under high pressure has been investigated by in situ high pressure angle dispersive X-ray diffraction measurements using synchrotron radiation in the pressure range of 0~33.42 GPa at room temperature. By fitting the static equation of state at room temperature, we find the value of bulk modulus B is 61.27±4 GPa which is in good agreement with the experimental study by pulse-echo techniques of 58 GPa. The results show that the amorphous structure in the heavy RE-based BMG Gd40Y16Al24Co20 keeps quite stable up to 33.42 GPa although its compressibility is as large as about 33%. The coexistence of normal local structure similar to that of other BMGs and covalent bond structure similar to those of oxide glasses may be the reason for the anomalous property under high pressure of the Gd40Y16Al24Co20 BMG.

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