Preparation of CoMoPC bulk metallic glasses using fluxing treatment and J-quenching technique

ABSTRACT

A new series of Co_80-xMo_xP₁₄C₆ (x = 8, 9 and 10 at.%) bulky glassy rods have been prepared by combining fluxing treatment and J-quenching technique. The glass-forming ability, thermal stability, magnetic and mechanical properties of the present CoMoPC bulk metallic glasses (BMGs) have been investigated. For the present Co_80-xMo_xP₁₄C₆ (x = 8, 9 and 10 at.%) BMGs, the critical diameter for glass formation reaches the maximum value of 1.5 mm when x = 9, and the saturation magnetisation gradually decreases from 0.35 T (39 emu/g) to 0.17 T (19 emu/g) as increasing Mo content from x = 8 to x = 10. The present CoMoPC BMGs exhibit a fracture strength of 2.13–2.32 GPa and nearly zero plasticity.

KEYWORDS:

• Co-based bulk metallic glasses
• magnetic properties
• mechanical properties
• J-quenching technique

Acknowledgements

This research was supported by National Natural Science Foundation of China (Grant No. 51561028 and 51771161). The author (Hongxiang Li) appreciates the financial support from Beijing Municipal Natural Science Foundation (Grant No. 2202033).

Disclosure statement

No potential conflict of interest was reported by the author(s).

Declaration of interests

The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

Additional information

Funding

This research was supported by National Natural Science Foundation of China [Grant numbers 51561028 and 51771161]. The author (Hongxiang Li) appreciates the financial support from Beijing Municipal Natural Science Foundation [Grant number 2202033].