Nickel with multimodal grain size distribution achieved by SPS: Microstructure and mechanical properties

摘要

Using spark plasma sintering, bulk polycrystalline nickel samples are created from high-purity multimodal nickel powder. The resulting compacts yield relative mass densities of 95-97 %, depending on the sintering temperature. Microstructural investigations of the processed samples show a composite-like microstructure made of the following elements: multicrystalline agglomerates (5