Table 1 Thickness of the Ti33Cu67 ribbon samples, electrical pulsing parameters, calculated current density and Joule heat evolved during the pulses
From: Crystallization of Ti33Cu67 metallic glass under high-current density electrical pulses
Sample | Thickness of the ribbon, μm | Pulse duration, μs | Maximum current, A | Maximum current densitya, A · m-2 | Q/m, J kg-1 | Possible processes in the sample caused by Joule heating |
|---|---|---|---|---|---|---|
N1 | 100 | 140 | 145 | 9.7 · 108 | 5.3 · 104 | Heating up to approximately 480 K |
N2 | 30 | 230 | 110 | 2.2 · 109 | 3.4 · 105 | Heating up to the solidus temperature, partial melting |
N3 | 40 | 100 | 284 | 4.7 · 109 | 4.4 · 105 | Heating up to the solidus temperature, partial melting |
N4 | 25 | 140 | 190 | 5.1 · 109 | 1.0 · 106 | Heating up the liquidus temperature, complete melting |