NOVELTY - The method comprises: combining a metal powder with a first homogenizing aid to form metal granules; blending the metal granules and an extractable particulate to form a composite; forming the composite into a green article; removing the extractable particulate from the green article to form a metal matrix and pore structure; sintering the metal matrix and pore structure; sieving the metal granules to a size below -70 mesh; and combining the extractable particulate with a second homogenizing aid.    USE - The method is useful for making a porous biocompatible metal article such as an orthopedic implant (claimed), which is useful in bone growth media, filters, sound suppression materials, fuel cells, catalyst supports, and magnetic shielding.    ADVANTAGE - The method is capable of easily, rapidly and economically making the porous biocompatible metal article with controllable pore structure, high strength and structural integrity, and without contamination.    DETAILED DESCRIPTION - The method comprises: combining a metal powder with a first homogenizing aid to form metal granules; blending the metal granules and an extractable particulate to form a composite; forming the composite into a green article; removing the extractable particulate from the green article to form a metal matrix and pore structure; sintering the metal matrix and pore structure; sieving the metal granules to a size below -70 mesh; and combining the extractable particulate with a second homogenizing aid. The extractable particulate is: salts, carbonates and sorbates; removed by dissolving the extractable particulates in a fluid; and has a diameter of 50-1000 microns. The green article is formed by one of slip casting, compaction, compression, extrusion, or injection molding. The fluid is water or gas. The compaction deforms the metal powder, and provides a shape to the metal matrix and pore structure. The first homogenizing aid provides the shape to the metal matrix and pore structure by binding the metal powder. The method further: comprises removing the first homogenizing aid and the extractable particulate to form the metal matrix and pore structure; removing the first and second homogenizing aids through dissolution in water; and combining the green article with a substrate. The metal powder is 1-150 microns. The step of combining the metal powder comprises: emulsifying the first homogenizing aid in water to form an emulsion; spraying the emulsion onto a fluidized bed of the metal powder to form the metal granules; drying the metal granules at 30-80 degrees C; dissolving the first homogenizing aid in water to form a solution; and spraying the solution onto a fluidized bed of the metal powder to form the metal granules. The extractable particulate is coated with a second homogenizing aid. The step of forming comprises subjecting the composite to a pressure of less than 20,000 pounds-per-square inch so as to deform the metal particles. An INDEPENDENT CLAIM is included for an orthopedic implant.    DESCRIPTION OF DRAWING(S) - The diagram shows a schematic view of a compacted mixture with the extractable particles.    Extractable phase (20)    Matrix powder (21)    Pores. (22)