GSL2800XGRF is a high-temperature graphitization furnace up to 2800°C using graphite heating elements. It comes with multiple layers of graphite felt thermal insulation and a water-cooled stainless steel chamber. The equipment also features a bottom-loading sample stage for easy sample loading and retrieval. The chamber has a vacuum pressure rating <5e-3 torr with a mechanical pump.
SPECIFICATIONS
| Power |
- 480VAC, 3 phase, 50/60Hz, ,50 A, 40kVA
- Other working voltage is also available upon request.
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| Vacuum Chamber |
- Water-cooled stainless steel 304 vacuum chamber.
- Inner dimensions: Ø360 x 480 mm
- Water-cooled graphite electrode feedthrough
- 3-5 layers of graphite felt thermal insulation
- Water flow, water pressure, and overtemperature interlocks
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Heating Element
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- Effective heating area: Ø100 × 260 mm
- Sample size: <Ø80 × 200 mm
- Cylindrical graphite heater, up to 2800°C
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Temperature Control
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- Eurotherm 3000 series temperature controller with dual inputs
- 28-segment programmable PID loop
- Dual temperature probes
RT - 1300°C C-type thermocouple
1300<T<2800°C Dual color Pyrometer
- Estimated temperature uniformity <±8°C in Ø80×120 mm
- Temperature stability: <±1°C
- Heating Rate:
- RT - 300°C ≤ 5°C/min
- 300 - 1000°C ≤ 15°C/min
- 1000 - 1600°C ≤ 10°C/min
- 1600 - 2000°C ≤ 8°C/min
- 2000 - 2400°C ≤ 5°C/min
- 2400 - 2600°C ≤ 3°C/min
- 2600 - 2800°C ≤ 1°C/min
- 2800°C dwelling time < 60 min
- Cooling Rate:
- 2800 - 2600°C ≤ 3°C/min
- 2600 - 2400°C ≤ 5°C/min
- 2400 - 2000°C ≤ 8°C/min
- 2000 - 1600°C ≤ 10°C/min
- 1600 - 1300°C ≤ 15°C/min
- Passive cooling at T <1300°C
- Remote temperature control and monitoring via an RS485 port and iTools.
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| Sample Stage |
- Motorized bottom-loading sample stage for easy sample loading and retrieval.
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| Pressure Gauge |
- Inficon PGC554 Pirani capacitance diaphragm pressure gauge
- Measurement range 3.8E-5 to 1125 Torr.
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| Vacuum |
- <5e-3 torr after bakeout
- Vacuum pump is required but not included.
- MTI recommends getting a vacuum pump along with the furnace.
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| Chilled Water |
- Water inlet and outlet: 1" barbed fitting
- Cooling capacity >15 kW
- Water pressure: 0.1 - 0.2 MPa
- Water flow rate > 40L/min
- MTI recommends getting a water chiller together with the equipment.
- Backup lab water supply (>7 L/min) is required if a water chiller is used.
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| Gas Compliance |
- Argon gas RT - 2800°C
- 3% hydrogen / 97% Ar gas, for temperature < 1500 °C
- 4% methane / 96% Ar gas, for temperature < 2400 °C
- 5% ammonia / 95% Ar gas, for temperature < 2400 °C
- Vacuum
- <100 torr, <2000°C
- 100<P<760 torr, <2800°C
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| Compliance |
CE Certified
NRTL certification is available upon request at an extra cost |
