High-Temperature Specific Heat Capacity Tester for Solid Materials
Published: 9/12/2017
The GHC-II measures the specific heat capacity of solid materials at elevated temperatures using a mixing (drop calorimetry) method with automated data acquisition. It is designed for research and teaching applications requiring accurate Cp determination across a wide temperature range.
Product Description
The GHC-II is a high-temperature specific heat capacity tester that employs the mixing method: a preheated sample is dropped from a vertical tube furnace into a calorimeter, and the resulting temperature changes are recorded to calculate Cp. The system integrates a vertical tube resistance furnace, thermostatic bath, temperature controller, high-precision thermometer, calorimeter, and a computer-based measurement system for fully automated acquisition and analysis.
Heating elements are configured according to target temperature: resistance wire up to 1000°C, molybdenum wire up to 1700°C, and a graphite furnace tube above 1700°C. For oxidation-prone samples, an inert atmosphere or vacuum configuration is used to protect the specimen during high-temperature exposure.
Technical Specifications
| Parameter | Specification |
|---|---|
| Temperature Range | Ambient to 1400°C |
| Specific Heat Capacity Range | >0.5 J/(g·K) |
| Specific Heat Accuracy | ≤1% |
| Temperature Control Accuracy | ±0.3 K per 30 minutes (dependent on settings) |
| Temperature Measurement Resolution | 0.01 K |
| Heating Method | Carbon rod (system furnace options include resistance wire to 1000°C, Mo wire to 1700°C, graphite tube above 1700°C) |
| Control | Intelligent PID, program control |
| Data Acquisition | Full-process computer data acquisition |
| Calorimeter Heat Capacity | ~1500 J/K |
| Calorimeter Temperature Resolution | 0.01°C |
| Adiabatic Shield | 3 pairs of thermocouples, resolution 0.01°C |
| Thermostatic Bath Range | −5.00 to 60.00°C |
| Sample Oxidation Protection | Argon (vacuum system recommended for easily oxidized samples) |
| Software Operation | Built-in touch-screen software; can connect to a computer for automated testing (Chinese UI noted in source) |
| Sample Size | Diameter 11 mm; height 30 mm; powder supported with standard sample cup |
| Standards Compliance | GJB 330A-2000; GJB 1715-93; GB/T 3140-2005 |
| Power Supply | 220 V / 50 Hz |
| Power Consumption | <6 kW |
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B6-101, Zhongnan High-Tech Intelligent Manufacturing Industrial Park, No. 10 Shuangma Street, Yuetang District, Xiangtan City, Hunan Province, China
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