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首页> 外文期刊>Materials Science and Engineering. A, Structural Materials >Evaluation of electroless nickel surface treatment for iron powder used in MR fluids
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Evaluation of electroless nickel surface treatment for iron powder used in MR fluids

机译：MR流体中铁粉的化学镀镍表面处理的评估

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摘要

Iron powders, used in magnetorheological (MR) fluids, were coated with nickel by electroless deposition. The ability of the coating to reduce the oxidation rate of the iron powder was evaluated by thennogravimetric analysis (TGA). Nickel metal appears to be very effective in reducing oxidation of the iron as indicated by the TGA results. However, the electroless treatment process also produces an undesirable decrease in both the saturation magnetization and the density of the iron powder. There is also a significant material handling difficulty as the treatment is conducted in a large volume aqueous suspension at elevated temperature.
机译：磁流变（MR）流体中使用的铁粉通过化学沉积法涂覆了镍。通过热重分析（TGA）评估了涂层降低铁粉氧化速率的能力。如TGA结果所示，镍金属似乎对减少铁的氧化非常有效。但是，化学镀处理过程也会在饱和磁化强度和铁粉密度方面产生不希望的降低。由于在高温下在大量的水性悬浮液中进行处理，因此也存在很大的材料处理难度。

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