// Blog August 4, 2020

Thermal Conductivity Testing of Laser Powder Bed Fusion Aluminum Alloys from Elementum 3D

Elementum 3D is a developer and commercial supplier of additive manufacturing materials and processes, specializing in the creation of previously unprintable advanced metals, composites, and ceramics. Elementum 3DElementum3D’s A6061-RAM2 T6 heat-treated aluminum material is produced by laser powder bed fusion additive manufacturing.  This material is based on a 6061 aluminum alloy matrix with 2 volume percent ceramic to make the material printable and improve mechanical properties.  As this material is a composite, it is expected that the thermal conductivity will be slightly below a wrought alloy without the ceramic reinforcement. 

It has been determined a transient thermal conductivity test provides more accurate measurements for real usage cases for composite materials compared with the laser flash method.

Figure 1. Example Test Setup for Copper being tested with Trident TPS

The aluminum blocks (182 W/mK) are a commercial wrought 6061 T6 heat-treated material.

The copper cylinders (375 W/mK) are Elementum 3D’s AMCopper-100 (commercially pure copper) specimens printed by laser powder bed fusion additive manufacturing and annealed.

Figure 2. Thermal Conductivity of 3D Elementum materials, measured via Trident TPS Instrument

3 tests of each sample set were completed to check the relative standard deviation (repeatability/precision) of the data.

Table 1. Test results and Relative Standard Deviation of data.

About Elementum 3D:

Elementum 3D is an additive manufacturing research and development company that specializes in the creation of advanced metals, composites, and ceramics. Our innovative materials help meet the 3D printing industries ever-growing demand for greater selection and expand on the capabilities of additive manufacturing. Our goal is to lead the industry in high-performance materials technology.  Learn more about Elementum 3D

About C-Therm Technologies Ltd.:

C-Therm is the global leader in transient-based thermal conductivity characterization – providing the highest sensitivity thermal conductivity instrumentation available for R&D, manufacturing and quality control environments.  C-Therm’s new Trident™ Thermal Conductivity instrument is used by the top battery, electric vehicle and electronics manufacturers in the world.  Learn more about C-Therm Trident


Request a Quote