Characterization of microwave-induced electric discharge phenomena in metal-solvent mixtures.
Characterization of microwave-induced electric discharge phenomena in metal-solvent mixtures.
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DOI：
10.1002/open.201100013
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发表时间：
2012-02
期刊：
影响因子：
2.3
通讯作者：
Kappe, C. Oliver
中科院分区：
文献类型：
--
作者：
Chen, Wen;Gutmann, Bernhard;Kappe, C. Oliver
使用高场密度，密封量，单模2.45 GHz微波反应器，使用内置摄像头进行了较高的电源混合物，并研究了特定的重点。 ，在不同的电场强度下，有机溶液（例如苯）中不同粒径和形态的不同粒径和形态磁性金属（MG，Zn，Cu）强烈取决于使用小颗粒的尺寸。然而，经历了明亮的火花和弧形，通常是通过溶剂分解和考虑石墨化材料的考虑的。 μm在苯悬浮液中非常迅速地加热，并开始在微波场中发光，而较大的颗粒也暴露于极强的排放时，当Cu金属或其他导电材料（例如碳化物）暴露于微波炉中时。在氩气或氮气中没有溶液。
Electric discharge phenomena in metal–solvent mixtures are investigated utilizing a high field density, sealed-vessel, single-mode 2.45 GHz microwave reactor with a built-in camera. Particular emphasis is placed on studying the discharges exhibited by different metals (Mg, Zn, Cu, Fe, Ni) of varying particle sizes and morphologies in organic solvents (e.g., benzene) at different electric field strengths. Discharge phenomena for diamagnetic and paramagnetic metals (Mg, Zn, Cu) depend strongly on the size of the used particles. With small particles, short-lived corona discharges are observed that do not lead to a complete breakdown. Under high microwave power conditions or with large particles, however, bright sparks and arcs are experienced, often accompanied by solvent decomposition and formation of considerable amounts of graphitized material. Small ferromagnetic Fe and Ni powders (<40 μm) are heated very rapidly in benzene suspensions and start to glow in the microwave field, whereas larger particles exhibit extremely strong discharges. Electric discharges were also observed when Cu metal or other conductive materials such as silicon carbide were exposed to the microwave field in the absence of a solvent in an argon or nitrogen atmosphere.
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影响因子：
19
作者：
Druzhinina, Tamara;Weltjens, Wim;Schubert, Ulrich S.
通讯作者：
Schubert, Ulrich S.
影响因子：
4.3
作者：
Gutmann, Bernhard;Obermayer, David;Kappe, C. Oliver
通讯作者：
Kappe, C. Oliver
影响因子：
19
作者：
Hsin, Yu-Lin;Lin, Chia-Fen;Hwu, Jih Ru
通讯作者：
Hwu, Jih Ru
DOI：
10.1023/a:1017900214477
发表时间：
2001-01-01
期刊：
JOURNAL OF MATERIALS SCIENCE LETTERS
影响因子：
--
作者：
Cheng, JP;Roy, R;Agrawal, D
通讯作者：
Agrawal, D
影响因子：
--
作者：
Cheng, JP;Roy, R;Agrawal, D
通讯作者：
Agrawal, D