Twice the density of stainless steel, Tungsten Carbide grinding balls provide a good alternative to stainless for grinding very resilient samples. Our 3/8" Tungsten Carbide grinding balls should be used with 4 ml or 15 ml polycarbonate vials in the standard vial set format. Balls can be cleaned and re-used. Sold in packages of 25 balls.
Lou, T. Microstructure and Properties of Spark Plasma Sintered MoAlB Ceramics. Mechanical (and Materials) Engineering -- Dissertations, Theses, and Student Research 2016.