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Thermal resistance measurement of 3D graphene foam by Laser Flash Analysis (CAT#: STEM-PPA-0052-WXH)

Introduction

3D Graphene Foam is a porous, high-surface area form of graphene that is synthesized via chemical vapor deposition (CVD) techniques. Graphene foam combines the unique mechanical and electrical properties of two-dimensional graphene with the properties of a metallic foam, yielding an ultra-light, highly conductive material with excellent strength and flexibility.




Principle

The laser flash analysis or laser flash method is used to measure thermal diffusivity of a variety of different materials. An energy pulse heats one side of a plane-parallel sample and the resulting time dependent temperature rise on the backside due to the energy input is detected. The higher the thermal diffusivity of the sample, the faster the energy reaches the backside.

Applications

Used to measure thermal diffusivity of a variety of different materials.

Procedure

The front surface of a plane-parallel sample is heated by a light pulse and the resulting temperature rise at the sample’s rear face is recorded as a function of time. The higher the thermal diffusivity, the faster the temperature rise reaches the rear face.

Materials

Light/Laser Flash Analyzers
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