Method Comparison

Thermal Conductivity Method Comparison

	Transient Plane Source TPS 2500 S & TPS 1500	Modified Transient Plane Source	Laser Flash	Heat-Flow Meter
ASTM/ISO/DIN Standardization	Yes	No	Yes	Yes
Direct Thermal Conductivity Measurement	Yes	No	No	Yes
Can Measure Isotropic & Non-Isotropic Materials	Yes	No	No	No
Requires - Interface Liquid Between Sensor & Sample	No	Yes	No	Yes
Requires - OEM Calibration	No	Yes	No	Yes
Test Time	0.005 - 1280 sec	0.8 - 5 sec	N/A	N/A
Speed & Flexibility
Sample Preparation	None	None	Moderate	Extensive
Time Results	Seconds	Seconds	Minutes	Hours
Training Time	One-day	One-day	One-day	One-day
Non-Destructive	Yes	No (liquid interface)	No ( interface coating)	No (liquid interface)
Easy to Export Results	Yes	Yes	Yes	Yes
Ranges
Thermal Conductivity	0.005 - 500 w/mk	0.1 - 100 w/mk	0.1 - 200 w/mk	0.01 - 2 w/mk
Thermal Diffusivity	0.1 - 100 mm2/s	Not capable	0.01 - 100 mm2/s	Not capable
Specific Heat	Up to 5 MJ/m3k	Not capable	Not capable	Not capable
Effusivity	Yes	Yes	No	No
Temperature	-100°C - 1000°C	-20°C - 200°C	-100°C - 500°C	0°C - 200°C
Penetration Thickness	0.01 - 30 mm	1-5 mm	0.05 - 5 mm	100 mm
Smallest Size	2 mm diameter or square	17 mm diameter	8 mm square	300 mm square
Dual + Single Sided Testing	Yes	No	No	No
Materials for Thermal Conductivity	Solids, Liquids, Pastes Powders	Solids, Liquids, Pastes	Solids, Liquids	Solids