Spark Plasma Sintering (SPS), also called Field Assisted Sintering Technology (FAST) or Direct Current Sintering (DCS), is a powder metallurgy hot-pressing technique capable of producing ultra dense materials in record time, with almost no limitation to the powder materials used.
The main difference between FAST / SPS and more conventional powder metallurgy technologies is its heating method and also the fast process time (<1h)
With this set-up it is possible to reach high heating and cooling rates of over 100°C/min. The Field Assisted Sintering Technology, Spark Plasma Sintering (FAST/SPS) process can reach high temperature in only a few minutes compared to several hours for other sintering techniques.
The main advantage of this powder metallurgy technology is the absence of organic binders during the process that can cause defects during sintering. The technology limits residual stress within the material. through the efficient control of the part’s thermal gradient during the sintering process.
This reduced processing cycle combined with the fast-heating rate result in a fine material microstructure and an increase in the mechanical properties of the sintered materials.
Thanks to these assets, this unique powder sintering process is used to easily manufacture high performance and innovative materials (composites, hard metals, metal alloys, refractory materials).
This process enables rapid single-step sintering of parts with complex geometries created in Additive Manufacturing. Thus, geometrically complex parts, with outstanding performance characteristics are now possible, quickly.
With a heating rate of more than 100°C/minute, the materials quickly reach their sintering temperature.
The Field Assisted Sintering Technology, Spark Plasma Sintering (FAST/SPS) process prevents grain growth within the materials. In addition to the pressure and temperature applied, the materials maintain a fine microstructure and can reach a density of 99.5%.
All the powder sintered in the process is densified, and there is virtually no powder waste, or any other waste.
The specificity of the Field Assisted Sintering Technology, Spark Plasma Sintering (FAST/SPS) process makes it possible to sinter the most innovative and refractory materials.
Norimat group offers you its unique know-how and capabilities, spanning from R&D to the serial production of your parts.
Our production team is at your service to industrialize and manufacture your most challenging and innovative tailor-made parts.
From the sintering of highly refractory powders to the sintering of alloy and composite materials, Norimat uses enhanced Field Assisted Sintering Technology, Spark Plasma Sintering (FAST/SPS) technology to help support our customer’s innovation.