The spark plasma sintering (SPS) of two types of α-Al 2O 3 powders (600 nm, 50 nm), synthesized by supercritical fluid and electrochemical methods, was investigated. The evolution of microhardness was studied after sintering the specimens at temperatures ranging from 1300 to 1650 0C. The microhardness (HV) of obtained bulk samples at room temperature was evaluated by the Vickers indentation technique.
spark plasma sintering, electrochemical synthesis, supercritical fluid, alumina, microhardness, искровое плазменное спекание, электрохимический синтез, сверхкритические флюиды, алюминия оксид, микротвердость
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