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首页> 外文期刊>Scripta materialia >Two-step heating in the formation of nanosized alumina particles by a pulsed wire discharge method
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Two-step heating in the formation of nanosized alumina particles by a pulsed wire discharge method

机译：通过脉冲丝放电法分两步加热形成纳米氧化铝颗粒

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摘要

Oxidation phenomena in pulsed wire discharge of Al wires to synthesize nanosized Al_2O_3 powders were analyzed by using a highspeed infrared thermometer during experiments in atmospheres of Ar and O_2. An abrupt increase in temperature caused by the electric heating and a subsequent decrease were observed under all conditions. A second temperature increase, which was considered to be caused by heat from the oxidation of residual metallic Al, was found in the O_2 atmosphere, but was not detected in Ar.
机译：在Ar和O_2气氛下，通过高速红外测温仪分析了铝丝脉冲放电中氧化生成纳米Al_2O_3粉体的氧化现象。在所有条件下均观察到由电加热引起的温度突然升高和随后的降低。在O_2气氛中发现了第二次温度升高，这被认为是由于残留金属Al氧化产生的热量所致，但在Ar中未检测到。

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