High-Temperature Heat Flow Meter (HFM)
High-Accuracy Thermal Conductivity Measurement Compliant with ASTM D5470, ASTM C1784 & ISO 8301
High-Accuracy Thermal Conductivity Measurement Compliant with ASTM D5470, ASTM C1784 & ISO 8301
Leading researchers trust the High-Temperature HFM for reliable thermal conductivity and resistance characterization of insulation and battery materials
High-Accuracy Thermal Conductivity Testing at High Temperatures
The High-Temperature HFM is a high-temperature thermal analysis system designed for the thermal characterization of insulation and battery materials. It enables precise measurement of thermal conductivity, thermal resistance, compression and force under controlled hot–cold side testing conditions.
High-Temperature Thermal Testing up to 850 °C
Engineered for demanding environments, the High-Temperature HFM operates across a wide temperature range up to 850 °C. It supports both gradual and rapid heating, allowing realistic simulation of material performance under operating and extreme thermal conditions. This makes it ideal for evaluating heat resistance and thermal stability in advanced insulation systems and battery components.
Testing and Core Measurement Capabilities
The High-Temperature HFM supports both soft and hard insulation materials and allows testing under different thermal loading conditions. Materials can be exposed to both gradual and rapid heating, enabling realistic simulation of operating and extreme temperature environments.
The GHFM-Tester measures:
- Thermal conductivity
- Thermal resistance
- Compression behavior
- Force under load
All measurements are performed using a hot–cold side heat flow method to ensure reliable material characterization.
Suitable Materials
The High-Temperature HFM is suitable for a broad range of insulation and battery-related materials, including:
- Insulation materials
- Battery cell spacers and thermal barriers
- Thermal insulation boards
- Thermal propagation and protection materials
- Ceramic-based nonwovens
- Polymer-based foams
- Fumed silica
- Aerogels
- Mica
- Other customer-specific materials
Applications
The High-Temperature HFM is used for:
- High-temperature testing up to 850 °C
- Thermal conductivity measurement
- Thermal resistance analysis
- Compression and mechanical behavior testing
- Heat resistance evaluation of advanced insulation materials
Technical Specifications
| Feature | Specification |
|---|---|
| Thermal Resistance at 25°C | 103 to 106 mm2K/W |
| Thermal Resistance at 850°C | 104 to 106 mm2K/W |
| Thermal Conductivity | 0.01 to 3 W/mK |
| Surface Pressure | up to 4 N/mm² (580 PSI) |
| Temperature Range | 25°C to 850°C |
| Sample Thickness | 0.1 to 25 mm |
Thermal Performance Overview Across Tested Materials
The results shown represent an overview of thermal performance across a range of tested materials. Each chart summarizes measured data for individual samples, enabling comparison of thermal behavior and demonstrating the High-Temperature HFM’s ability to deliver consistent and repeatable thermal characterization.
Discover how the High-Temperature HFM can optimize your material testing at high temperatures.
Common Applications
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High-Temperature Battery Separator
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Thermal Barriers
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Battery Packs
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Thermal Energy Storage (TES)
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Aerogels
About ZFW
The Zentrum für Wärmemanagement Stuttgart (ZFW) is a leading institute specializing in the thermal management of electronic systems. Founded in 2002 by Prof. Dr. Ing. A. Griesinger, ZFW operates independently within the Steinbeis Group while collaborating closely with the Faculty of Technology at DHBW Stuttgart.
With a team of experts, many with experience at companies such as Henkel and Robert Bosch GmbH, ZFW focuses on electromobility (battery thermal management), autonomous driving (driver assistance systems optimization), and LED technology, tackling over 100 industry and research funded projects each year.
