SPS Spark plasma sintering furnace introduction:

SPS Spark plasma sintering furnace is a pressure sintering method that uses an on-off DC pulse current to energize and sinter directly. The primary function of on-off DC pulse current is to generate discharge plasma, discharge impact pressure, Joule heat, and electric field diffusion. The SPS device mainly includes the following parts: axial pressure device; water-cooled punch electrode; vacuum chamber; atmosphere control system (vacuum, argon); DC pulse power supply and cooling water; displacement measurement, temperature measurement, and safety control units.

 

Application field:

Spark plasma sintering is suitable for almost all materials, such as metals, ceramics, and composite materials. It is significant for realizing high-quality, high-efficiency, low-cost, and low-cost material preparation. In addition, spark plasma sintering equipment is not limited to sintering applications of materials but can also be used for joining, forming, surface modification, etc.

intermetallic compound	Metal	Cermet	Ceramics					Other Materials
			Oxide Ceramics	Carbide Ceramics	Nitride Ceramics	Boride Ceramics	Fluoride Ceramics
TiAl, MoSi2, NbAl, NiAl, NbCo, Si3Zr5, etc.	Fe, Cu, Al, Au, Cr, Mo, Sn, Ti, W	Si3N4+Ni, Al2O3+TiC, WC+Co+Fe, Al2O3+Ni, ZrO2+Ni, etc.	Al2O3, ZrO2, MgO, SiO2, TiO2, etc.	SiC, B4C, TiC, WC, ZrC, VC, etc.	Si3N4, TaN, TiN, AlN, ZrN, VN, etc.	TiB2, HfB2, VB2, ZrB2, LaB6, etc.	LiF, MgF2, CaF2, etc.	Organic materials, composite materials, etc.

 

Features of SPS Spark plasma sintering furnace:

• Rapid sintering: the heating rate can reach above 500℃/min. The sintering time is significantly shorter than traditional methods such as hot pressing, HIP, and pressureless sintering.
• Purification & activation sintering: particle surface purification effect (removal of adsorbed gas & oxide film) and particle surface activation effect to achieve sintering of difficult-to-sinter materials
• Fine-grain sintering: rapid temperature rise inhibits grain growth, regulates the microstructure, and prepares the required sintered body (one of the best ways to prepare nanocrystalline materials)
• Wide range temperature sintering: the sintering temperature covers the high-temperature range from low temperature to 2300 °C
• Density control sintering: From porous body to dense sintered body, density control is free and easy
• Temperature gradient sintering: Create a temperature gradient (hundreds of ℃/mm) in the mold. It can achieve simultaneous sintering of materials with different melting points. (one of the best ways to prepare functionally graded materials)

 

Technical Parameters:

Model	CNEQPS-SPS-2T2KA	CNEQPS-SPS-3T3KA	CNEQPS-SPS-5T5KA	CNEQPS-SPS-10T6KA	CNEQPS-SPS-20T10KA	CNEQPS-SPS-50T30KA
Rated Pressure	20KN	30KN	50KN	100KN	200KN	500KN
Max. Output Current	2000A	3000A	5000A	6000A	10000A	30000A
Max. Output Voltage	10V	10V	10V	10V	10V	10V
Rated Power	20KW	30KW	50KW	60KW	100KW	300KW
Sample Size	Φ20mm	Φ30mm	Φ30mm	Φ50mm	Φ100mm	Φ200mm
Max. Temperature	2300℃	2300℃	2300℃	2300℃	2300℃	2300℃
Head stroke	60mm	60mm	100mm	100mm	100mm	200mm
Limited Vacuum	Low vacuum mode ≤10Pa (mechanical pump) High vacuum mode ≤6*10-3Pa (optional mechanical pump + molecular pump)
Temperature Measurement	Infrared temperature measurement (temperature measurement range 250°C-2500°C), thermocouple temperature measurement (temperature measurement range 0°C-1200°C)
Electronic Control System	Touch screen + PLC Equipped with a complete control system and data analysis system to realize the monitoring and analysis of pressure, temperature, current and other parameters

Note: The product can be customized and developed

 

You also might be interested in the following technical information:

• Application of spark plasma sintering technology in preparation of ceramic materials

          Existence and Function of Discharge/Plasma

          The Effect of Electric Field

          Temperature and Temperature Field Distribution 

          Heating System Application

          Pressure’s Affact and Application

          Design and Application of Mold

 

You also might be interested in the following CASES：

• In-Situ Synthesis of WC-6Co Cemented Carbide by SPS Spark Plasma Sintering Furnace
• SPS spark plasma sintering of W-Re High Specific Gravity Alloy