Glass forming ability and kinetic characters of paramagnetic Nd60Co40-(x)A1(x) (x = 5, 10, 15) bulk metallic glasses

作者：Xia L^*; Dong YD

来源：Modern Physics Letters B, 2004, 18(14): 679-685.

DOI：10.1142/S0217984904007220

• bulk metallic glass
• glass forming ability
• kinetics

Paramagnetic Nd60Co40-xAlx (x = 5, 10, 15) bulk metallic glasses (BMGs) were prepared in the shape of rods 2 mm in diameter by suction casting. The ternary alloys have shown distinct glass transitions in Differential Scanning Calorimetry (DSC) measurements and excellent glass-forming ability. The glass transition and crystallization behaviors as well as their kinetics have been studied. The reduced glass transition temperature and the supercooled liquid region of the alloys were found to increase with the increasing content of Al. The role of Al was discussed. The parameter gamma defined by Liu et al. was employed to discuss the glass-forming ability of the alloys and the critical cooling rates as well as the critical section thickness of the alloys were predicted accordingly.

• 出版日期2004-6-10
• 单位上海大学