Spark Plasma Sintering - SPS Technology THERMAL TECHNOLOGY introduces Spark Plasma Sintering

Spark Plasma Sintering Video

Follow link below to article and video featuring
Thermal Technology's SPS system at the University of Arizona
http://www.azbiz.com/articles/2010/05/14/news/the_next_generation/doc4beda0599458d459619189.txt

SPARK PLASMA SINTERING

THERMAL TECHNOLOGY introduces Spark Plasma Sintering - SPS Technology, a revolutionary high speed powder consolidation technology. Spark Plasma Sintering (SPS) utilizes high amperage DC pulse current to rapidly and evenly disperse spark plasma energy between particles. A Spark Plasma Sintering (SPS) system can process conductive, non-conductive and composite materials to any level of density, including full density, with high homogeneity and especially strong bonds between particles.

SPARK PLASMA SINTERING (SPS) BENEFITS

Equal, uniform heat throughout the sample
Full density and controllable porosity
Pre-forming and binders NOT necessary
Uniform sintering of like and dissimilar materials
Ease of use

Fast cycle times
Vaporization of pre-existing contamination
Powder-to-part net and near-net shapes
Minimal grain growth
Minimal affect on microstructure
Low operating costs

THE SPARK PLASMA SINTERING (SPS) PROCESS

The Spark Plasma Sintering (SPS) plasma theory is based on the electrical spark discharge phenomenon wherein a high energy pulse current momentarily generates spark plasma at high localized temperatures (up to 10,000°) between particles. The spark energy vaporizes contaminants and oxidation on the surface of the particles prior to neck formation. Joule heat is concentrated on particle surfaces producing plastic deformation which aids in high density applications. Spark Plasma Sintering (SPS) is a pressure-assisted process utilizing up to 300 tons of force. The atmosphere is vacuum with the ability to use inert gas. Heat feedback is provided via thermocouples or pyrometer. All Thermal Technology spark plasma sintering (SPS) systems will include programmable pressure, power settings and data acquisition.

Basic configuration of a
Spark Plasma Sintering (SPS) machine

ON-OFF pulsed current path through the
Spark Plasma Sintering (SPS) machine

SPARK PLASMA SINTERING (SPS) SYSTEMS

Thermal Technology's standard Spark Plasma Sintering (SPS)systems come in two sizes:
• SPS Model 10-3 with 10 tons of force and a 3000 amp power supply

•   SPS Model 25-10 with 25 tons of force and a 10,000 amp power supply (pictured below)

Thermal Technology also offers larger "purpose-built" Spark Plasma Sintering (SPS) systems in a range of sizes:
   • Machine force options of 50, 100, 150, or 250 tons of force
   • Power supply options of 20,000, 40,000 or 60,000 amp systems

Custom high-throughput commercial Spark Plasma Sintering (SPS) systems are also available. These are purpose-built for your specific high volume application.

All Thermal Technology Spark Plasma Sintering (SPS) systems include:
• Remote PC-based programming station
• Data acquisition
• State-of-the-art clean wave, high efficiency power supply
• Fully programmable power supply, including mid-process waveform adjustments
• Servo valve controlled hydraulics for ultra-fine force control
• Front load access -- entire front wall of chamber opens

Spark Plasma Sintering (SPS) Model SPS 10-3

Spark Plasma Sintering (SPS) Model SPS 25-10

Spark Plasma Sintering (SPS) Article appearing in Ceramic Industry, May 2008

All specifications are subject to change. Final quotation will be the governing document in all cases.
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