To improve the tenacity of fragile materials produced by the techniques of the metallurgy of the powders and pieces obtained by this

摘要

The present invention relates to a process in order to increase the toughness of a brittle material made by a technique of the powder metallurgy. / p & & p & this process is characterized in that it incorporates, in the matrix, a quantity ranging from about 5% to approximately 30% by volume of particles resistant compatible, having a mean diameter ranging from about 50 to about 300 micrometers, so that the toughness of the resulting part exceeds which would have been provided by applying a rule of the calculation of the mixtures.