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Si3N4-doped Zr50Al15Ni10Cu25 glassy alloy by mechanical alloying and sintering process

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Abstract

Zr50Al15Ni10Cu25 amorphous powder was synthesized by mechanical alloying. The effect of Si3N4 addition on the crystallization behavior of the alloy during sintering process was studied. Thermal stability of the powders was performed by differential scanning calorimetry (DSC). The phase and microstructure of the powders and bulk specimens sintered were determined by X-ray diffractometry (XRD) and scanning electron microscopy (SEM). The results show that, introducing 0.05% (mass fraction) Si3N4 can enhance the crystallization activation energy of the Zr50Al15Ni10Cu25 amorphous powders, which indicates that Si3N4 addition has hindrance effect on forming crystals from Zr50Al15Ni10Cu25 amorphous powder. However, 0.10% Si3N4 results in the decrease of the crystallization activation energy, which makes its crystallization process easy to occur.

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Authors and Affiliations

  1. School of Materials Science and Engineering, Central South University, Changsha, 410083, China

    Xue-qiong Ouyang  (欧阳雪琼), Wo-yun Long  (龙卧云), Chao Gao  (高超) & An-xian Lu  (卢安贤)

  2. Department of Applied Physics, Hunan Agricultural University, Changsha, 410083, China

    Wo-yun Long  (龙卧云)

  3. Barun Mining Co. Ltd., Baotou, 014080, China

    Jian-ze Bian  (边建泽)

Authors
  1. Xue-qiong Ouyang  (欧阳雪琼)
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  2. Wo-yun Long  (龙卧云)
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  3. Jian-ze Bian  (边建泽)
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  4. Chao Gao  (高超)
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  5. An-xian Lu  (卢安贤)
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Corresponding author

Correspondence to An-xian Lu  (卢安贤).

Additional information

Foundation item: Project(50672134) supported by the National Natural Science Foundation of China

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Ouyang, Xq., Long, Wy., Bian, Jz. et al. Si3N4-doped Zr50Al15Ni10Cu25 glassy alloy by mechanical alloying and sintering process. J. Cent. South Univ. Technol. 17, 1125–1128 (2010). https://doi.org/10.1007/s11771-010-0606-1

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  • DOI: https://doi.org/10.1007/s11771-010-0606-1

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