Spark Plasma Sintering Furnace

Spark Plasma Sintering Furnace can be used for sintering, sinter-bonding, surface treatment, and synthesis. The sample material can be metals, ceramics, nanostructured material, and amorphous material. This system perfectly fits solid electrolyte and electric thermal material research.

With this new sintering technique the tool and the component are directly heated by DC current pulses to reduce cycle times to a few minutes. The use of DC current pulses causes an additional increase in sintering activity in various materials due to the processes that occur at the points of contact of the powder particles (Joule heating, generation of plasma, electromigration, etc.). Therefore, a significantly lower temperature, as well as significantly lower mold pressure, is needed than is used for conventional hot pressing and sintering. 

Additionally, the furnaces can be equipped with a radial, inductive heating system to prevent radial temperature gradients with large-sized components or to facilitate the inductive heating of materials that are otherwise inadequately conductive at room temperature. Technology like this offers entirely new possibilities to manufacture numerous materials with extraordinary characteristics, e.g.:

Sintered nanomaterial without significant grain growth

FGM («Functionally Graded Materials»)

Composite materials

Innovative carbide metals

Aluminum and copper alloys as well as intermetallic compounds

Structural and functional ceramics

Spark Plasma Sintering Furnace

Spark Plasma Sintering Furnace Functions:

  1. Working temperature: up to 2400°C

  2. Vacuum: 5 x 10-2 bar(a)

  3. Working gases: Ar / N2 (further types of gases available upon request)

  4. Servo-hydraulic force control

  5. Precise, rigid portal frame with low deformation, accurate guiding of the heading tool

  6. Measuring device for compression stroke and compression speed

  7. Double-walled, water-cooled stainless steel vacuum chamber with a leakage rate of less than 1 x 10-3 mbar(a) l/s

  8. Easy accessibility

  9. Temperature measurement and control with either axial/radial pyrometer or flexible thermocouples

  10. Freely programmable sintering parameters with up to 40 segments per recipe

  11. Pulse on/off is freely programmable (1...999 ms) for each individual segment

  12. Heating rate: up to 1000 K/min (depending on tool size)

  13. Comprehensive software for data recording and evaluation of all sintering parameters

  14. User-friendly online process management system available

  15. Semi-continued furnaces for industrial applications are available

    Spark Plasma Sintering Furnace

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