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Wire explosion technique has been widely studied in recent years to produce nanoparticles of different materials due to the enormous outstanding characteristics of nanomaterials as well as the advantages of wire explosion technique1. In the wire explosion process for preparation of nanoparticles, the wire firstly melts, vaporizes and then generates a mixture of metal vapor and liquid droplets. The...
Microsecond explosion of metallic wires has drawn attention of many researchers due to its complicated physical process and various applications, such as production of metal nanoparticles1. When a high density pulsed current passes through a thin wire, it quickly melts, vaporizes and ionizes. The medium pressure and charging voltage have significant effect on the development of the generated plasma2...
The impressive experimental result at Sandia National Laboratory has proven the wire-array Z pinch an effective way to form extremely high density X-ray sources. The X-ray yield is greatly influenced by the uniformity of the exploding product of each wire in the initial stage, which gives a strong impetus to the research on single-wire explosion. When the current flows through a thin metal wire in...
The fast electrical explosion of a metal wire is a common method to study the behavior of wires during the prepulse in wire array Z-pinch. The experimental results of the electrical explosion of aluminum (Al) wires using negative nanosecond-pulsed current with magnitude of 1∼2 kA are presented in this paper. The Al wires with different diameter are exploded with current rate of 90–170 A/ns. A laser...
The fast electrical explosion of a single metal wire has important applications in many fields, e.g., wire-array Z-pinch, x-rays source, and material property in extreme conditions, etc. The experimental and numerical investigations on nanosecond electrical explosion of single thin aluminum wire are presented in this paper. The experiments are conducted under a negative-polarity current with current...
The electrical explosion of single wire is widely used to understand the physics of the early stage of wire-array Z pinch. When the current pulse passes through the thin metallic wire, the wire heats, melts, vaporizes and ionizes. The metallic wire is exploded to two-object structure, the dense cold core surrounded by a conductive corona. Initially, the voltage across and the current through the wire...
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