Porous nickel sheet may be produced by the direct roll compaction of nickel powder. An experimental mill used for the production of thin strip is described, and a review of the process is given. Methods of controlling the porosity of the product and the maximum pore size are discussed and some of the problems associated with the production of highly porous material indicated. The air permeability, maximum pore size, and tensile properties of porous nickel strip of a variety of porosities are reported upon, as is the reproducibility of the process.
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