Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Nano iron powder is an iron powder with granules' sizes ranging on the nanoscale. It is produced by first refining the iron until it is exceptionally pure. Next it is wound into wire. This wire is then exposed to an electric explosion, separating the iron particles. What results is an iron powder that must be measured at the nanoscale. Possible applications of nano iron powder are for example use for groundwater remediation, wastewater treatment, in powder metallurgy or as a fuel cell catalyst. Nano iron powder also has its uses in magnetorheological fluids (abbr. MR fluid). When an MR fluid containing only micrometre sized iron particles is compared to a fluid containing 5% nano sized particles and the rest micrometre sized, stress yield is significantly increased. This is an example of one of many possible uses of this nanomaterial.

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