Microhardness of ceramics made of oxide nanopowders and fabricated by custom and SPS methods

Electrospark sintering (SPS) is used to create fine-grained ceramics based on nanosized powders of 14 different oxides (zinc, copper, chromium, cobalt, tungsten, magnesium, niobium, titanium, aluminum, yttrium, zirconium, etc.). A comparison is made of the microhardness of ceramics obtained both by the SPS method and by the traditional method. The microhardness of ceramics obtained by the SPS method is significantly higher than the microhardness of ceramics obtained by the traditional method.