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Sintering for composite materials

Aluminium FluorideCeramic MaterialsMetal-Metal junctionsSintering

Introduction

Method for making massive moderators of aluminum fluoride containing lithium with a high relative density. The method is based on sintering and guarantees to the production of relatively large elements, in a short time and with an energy efficient process, thanks to the characteristics of the machine and the moulds.

Technical features

The process can create products with a relative density greater than 80% by sintering powders. An experimental device and an optimized sintering procedure have been developed: densification is obtained at high temperature, in the presence of uniaxial pressure and carried out in times sufficiently short to avoid significant material losses caused by the vapourization of the materials. Compared to commercial sintering machines, the proposed set-up is more compact, economical and energy efficient. In addition, the moulds are engineered so as to obtain a uniform temperature distribution in the sample, maximising the yield and speed of the process, and allowing the densification of samples up to 15 cm per side.

Possible Applications

  • Production of composites metal-metal, metal-ceramic, ceramic materials for applications in extreme temperature conditions, massive nano-structured materials;
  • Prototyping;
  • Scientific studies;
  • Target for radioisotopes production;
  • Industrial: automotive, aeronautics, construction.

Advantages

  • Significant reduction of time;
  • Flexibility of use;
  • Compactness of the system;
  • Reduced energy consumption;
  • Customizable;
  • Low cost.