A new material that compensates for the shortcomings of aluminum and copper: lighter than copper, stronger than aluminum, with a thermal expansion rate comparable to titanium, and successful development of a well-balanced new material including thermal conductivity - New graphite-based metal matrix composite material "ACM-H3".

We have realized a new manufacturing method using our core technology, the molten metal forging method (high-pressure casting). This allows us to design physical properties such as thermal conductivity, thermal expansion, and strength according to specific needs. The current lineup of graphite-based composites, "ACM-a/ACM-io," had limited physical properties.
The newly developed "ACM-H3" is a metal matrix composite made by combining and impregnating aluminum and graphite. It is a new material that enhances product reliability as an alternative to aluminum and copper (heat sinks), a high-rigidity heat dissipation structural component, and a material with high rigidity suitable for automotive applications.
As features not found in graphite, it has (1) a rigidity of 123 GPa, (2) lower thermal expansion than copper and aluminum, and (3) higher thermal conductivity than copper and aluminum. Furthermore, it has (4) a weight comparable to aluminum and (5) high rigidity (Young's modulus) comparable to copper.
As characteristics of a material unlike any before, it has high thermal conductivity, low thermal expansion, and low anisotropy. Previous materials had low lateral thermal expansion and high thermal conductivity, but the values for thermal expansion in the lamination direction were extremely poor, or there were materials with low thermal conductivity. However, this material achieves isotropy in both the longitudinal and transverse directions.

Inquiry about this news
Contact Us OnlineMore Details & Registration
Details & Registration