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Flash Sintering using Controlled Current Ramp
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DOI：10.1016/j.jeurceramsoc.2018.04.003.png)
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摘要
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In conventional flash sintering, the current rises nonlinearly to a set current limit, accompanied by a spike in the power density. This sudden power spike may cause hot spot formation, in which current preferentially channels through a small area, causing localized melting while other areas remain unsintered. By using a controlled current ramp early on the sudden power spike can be avoided. In addition, by changing the ramp rate material properties such as porosity, grain size and conductivity can be tuned.
Keyword:
flash sintering
ZnO
current ramp
impedance spectroscopy
electric field
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6.2
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1.7W
被引数:
5.1W
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