MW-SPS-1400 Microwave Heated Spark Plasma Sintering Furnace with 1400°C Max Temperature and 100 MPa Pressing Pressure under Oxygen and Inert Gas Atmospheres
The MW-SPS-1400 is engineered for advanced laboratory sintering tasks requiring rapid heating and high-pressure pellet pressing. It is optimized for processing ceramic and metallic materials into dense pellets with diameters ranging from 10 to 12.7 mm. This system supports sintering under controlled atmospheres, including inert gases and oxygen, enabling tailored material properties and oxidation control.
The furnace utilizes microwave heating at 2.45 GHz via a water-cooled magnetron, achieving a maximum temperature of 1400°C with heating rates up to 100°C per minute. Pressing is performed by a precision servo motor applying loads up to 2000 kgf, corresponding to a maximum graphite die pressure of 100 MPa. Pressure is maintained with ±0.5 kg accuracy through PID control, ensuring consistent densification during sintering cycles.
Key Features
- Microwave heating at 2.45 GHz with up to 2500 kW power (manufacturer verification required).
- Maximum working temperature of 1400°C with programmable 30-segment temperature control and ±2°C accuracy.
- Pressing force up to 100 MPa using a Si3N4 pressing die (12 mm inner diameter) and SiC heating-assistance sleeve.
- Stainless steel vacuum chamber with quartz observation window and vacuum ports; supports vacuum levels down to 10⁻⁵ Torr and positive pressures up to 0.5 bar.
- Touchscreen interface with RS-485 communication for PC control and data logging of temperature and pressure profiles.
- Included KJ5300 digital temperature-controlled water chiller with 16 L/min flow and 6000 BTU/hr cooling capacity.
- Capability to form plasma under argon atmosphere at low pressure (1–10 Torr) to enhance sintering.
Technical Specifications
| Parameter | Specification |
|---|---|
| Power Supply | 208–240V AC, single-phase, 50/60 Hz |
| Microwave Frequency | 2.45 GHz ±25 MHz |
| Microwave Power | 2500 kW (manufacturer verification required) |
| Maximum Temperature | 1400°C |
| Heating Rate | Up to 100°C/min |
| Pressing Force | Up to 100 MPa (2000 kgf load) |
| Pressing Die | Si3N4 die, 12 mm inner diameter |
| Heating Element | Silicon carbide (SiC) foam |
| Vacuum Chamber Material | Stainless steel |
| Chamber Dimensions | Ø315 mm × 315 mm (H) |
| Vacuum Level | Down to 10⁻⁵ Torr |
| Positive Pressure Limit | 0.5 bar max |
| Temperature Controller | SCR controller with S-type thermocouple, 30-segment programmable |
| Pressure Control Accuracy | ±0.5 kg |
| User Interface | Touchscreen panel with RS-485 communication and PC software |
| Water Chiller | KJ5300 digital, 16 L/min flow, 6000 BTU/hr cooling |
Typical Applications
This furnace is ideal for rapid densification and sintering of advanced ceramics and metallic powders, especially where controlled atmosphere processing is required. It supports research and development in materials science, including pellet fabrication for electronic, structural, and functional materials.
Configuration & Operating Notes
The system includes one Si3N4 pressing die and a SiC heating-assistance sleeve. Vacuum pump is available optionally. Operators should ensure proper cooling water supply for the magnetron and water chiller. The system’s software enables precise control and data logging, facilitating reproducible sintering cycles. Safety precautions for handling high pressure and microwave radiation must be observed.
