Radically different effects on materials by separated microwave electric and magnetic fields
Radically different effects on materials by separated microwave electric and magnetic fields
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DOI：
10.1007/s10019-002-8642-6
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发表时间：
2002-02-01
影响因子：
--
通讯作者：
Agrawal, D
中科院分区：
文献类型：
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作者：
Cheng, JP;Roy, R;Agrawal, D
使用2.45 GHz波导腔，在单模TE 103激发下，我们能够在H（磁）节点（其中E场接近零）或E（电）节点（其中H场接近零）分别物理定位样品的压实5 mm颗粒。各种金属的初步调查，（铜，铁，钴。）陶瓷（ZnO等），复合材料（WC-Co，ZnO-Co）的热行为有显著差异。结果最终确定，磁场相互作用大大有助于微波加热的方式，以前被忽略的微波加热的大多数理论，虽然仍有待理解的普通材料。
Using a 2.45 GHz wave-guided cavity, in a single mode TE103 excitation, we were able to physically locate compacted 5 mm pellets of samples separately at the H (magnetic) node (where the E field is nearly zero), or the E (electric) node (where H field is nearly zero). A preliminary survey of a variety of metals, (Cu, Fe, Co..) ceramics (ZnO, etc.), and composites, (WC-Co, ZnO-Co) showed remarkable differences in their heating behaviors. The results establish conclusively that the magnetic field interaction contributes greatly to microwave heating of common materials in a manner, previously neglected in most theories of microwave heating, albeit still to be understood.