• Proceedings of the Korean Institute of Surface Engineering Conference
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• 2015.11a
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• pp.234-234
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• 2015

Metallic microwires are a promising material for use as a filler in various conductive composite structures. Because of their high anisotropy in shape, a low percolation threshold could be achieved, which is beneficial to a low-cost fabrication and better electrical conductivity even under an extremely low solid content. Here we developed a facile method to fabricate the Cu (core)-Ni (shell) microwires.

• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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• 2002.04a
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• pp.76-78
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• 2002

The influence of laser annealing on gaint magnetoimpedance effect of glass-covered Co-based amorphous microwires is investigated by illuminating pulse Nd:YAG laser on the etched microwires. The maxium GMI ratio reaches maximum of around 85 % at the frequency of 5 MHz for the sample iluminated by the pulse with laser energy fo 132 mJ/pulse.

• Proceedings of the Korean Magnestics Society Conference
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• 2004.06a
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• pp.196-197
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• 2004

• Proceedings of the Korean Magnestics Society Conference
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• 2002.04a
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• pp.128-129
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• 2002

No Abstract, See Full Text

• Proceedings of the Korean Magnestics Society Conference
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• 2003.12a
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• pp.212-212
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• 2003

• Proceedings of the Korean Magnestics Society Conference
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• 2003.12a
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• pp.251-251
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• 2003

• Proceedings of the Korean Magnestics Society Conference
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• 2003.12a
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• pp.250-250
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• 2003

• Proceedings of the Korean Magnestics Society Conference
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• 2003.12a
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• pp.249-249
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• 2003

• Proceedings of the Korean Magnestics Society Conference
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• 2007.05a
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• pp.142.2-142.2
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• 2007

• Journal of the Microelectronics and Packaging Society
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• v.28 no.1
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• pp.67-71
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• 2021

In this study, graphene layer was grown on metal microwire using chemical vapor deposition. The difference of carbon solubility between copper and nickel resulted in the formation of mono-layer and multi-layer graphene were formed on the surfaces of copper and nickel microwires, respectively. During the growth of graphene at high temperature, copper and nickel were recrytallized and the grain size increased. The ampacity of graphene/copper microwire was improved by approximately 27%, 1.91×105 A/㎠, compared to pristine copper microwire. Similar to this behavior, the ampacity of multilayer graphene/nickel microwire was 4.41×104 A/㎠ which is about about 36% improved compared to the pure nickel microwire. The excellent electrical properties of graphene/metal composites are beneficial for supplying the electrical energy to the high-power electronic devices and equipment.