Ali Saidi
,
Kamran Azari
材料科学技术（英文）
Industrial application of microwave, as a heating source for material processing, was reviewed. The feasibility of carbothermic reduction of zinc oxide concentrate, as well as the effect of operating parameters was investigated, using a home style microwave oven at 2.45 GHz. Zinc oxide concentrate does not effectively absorb microwave energy, while any source of carbon, which is used as the reduction agent, absorbs microwave energy very well. In this respect coke breeze was found to be the best, and thus, coke was used both as the reducing agent and the absorbent of microwave energy. It was also found that any increase in the carbon content and size, increases the reduction rate. Increasing the microwave power and the size of the sample could also increase the reduction rate. Further investigation shows that when zinc oxide is exposed to the microwave for some time, the rate of the reduction by conventional method increases.
关键词:
Microwave
,
null
,
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李宁利
,
李铁虎
,
陈华鑫
,
张争奇
材料导报
改性沥青混合料拌和与压实温度对沥青路面的设计和施工质量有很大影响,进而影响沥青路面的使用性能.介绍了4种具有代表性的确定改性沥青混合料拌和与压实温度的方法,分别为Yildirim法(Y法)、Bahia法(B法)、Shenoy法(S法)和Azari法(A法),阐明并论述了这4种方法的优缺点及适用范围.
关键词:
改性沥青混合料
,
拌和温度
,
压实温度
,
粘度
