| abstract |
The invention relates to a powder of particles, more than 95% by number of said particles having a circularity greater than or equal to 0.85, said powder containing more than 98% of a stabilized oxide selected from stabilized zirconium oxides, oxides stabilized hafnium compounds and mixtures thereof, the stabilized oxide being stabilized with a stabilizer selected from oxides of Y, Ca, Ce, Sc, Mg, In, La, Gd, Nd, Sm, Dy, Er, Yb, Eu, Pr, and Ta, referred to as "stabilizing oxides", and the mixtures of these stabilizing oxides, in weight percent on the oxide basis, and having: - a median particle size D50 of less than 15 μm, a percentile 90 of the particle, D90, less than 30 μm, and a size dispersion index (D90 - D10) / D10 of less than 2; a relative density greater than 90%. |