We have succeeded in developing a new material that is lighter than copper, stronger than aluminum, has a coefficient of thermal expansion similar to that of titanium, and has a well-balanced thermal conductivity.
May 19, 2023 Advance Composite Co., Ltd.
Advanced Composite Co., Ltd. (Headquarter: Obuchi, Fuji City, Shizuoka Prefecture; President: Takatoshi Shoji) has developed new graphite-derived materials of MMC: Metal Matrix Composite, ACM-H1 and ACM-H2. The new materials will start to be supplied as a new lineup of our aluminum-based MMC.
Using our unique core technology, the Squeeze Casting method (high pressure casting), we have successfully developped a new manufacturing method to design physical properties arbitrarily such as thermal conductivity, thermal expansion, strength, etc. according to the required needs.
The newly developed “ACM-H3” is a MMC made by combining and impregnating aluminum and graphite. It is a new material that improves the reliability of products as a substitute for aluminum and copper (heat sink), a high-rigidity heat dissipation structural member, and a material with high rigidity suitable for in-vehicle use.
Features that graphite does not have are (1) rigidity of 123 Gpa, (2) thermal expansion lower than that of copper and aluminum, and (3) thermal conductivity greater than that of copper and aluminum. Furthermore, (4) it is as light as aluminum, and (5) it has a high rigidity (Young’s modulus) as high as copper.
The characteristics of this unprecedented material are high thermal conductivity, low thermal expansion, and low anisotropy. Conventional materials have low thermal expansion in the horizontal direction and high thermal conductivity, but some have extremely poor thermal expansion in the stacking direction and low thermal conductivity. is a new material that is isotropic vertically and horizontally.
Product details are below.
1. Name: “ACM-H3”
2. Product features and technical overview:
Composite materials such as aluminum and graphite
① Rigidity is as high as 123 Gpa, and the coefficient of thermal expansion is about half that of conventional copper.
② Lightness is 1/3 of copper, equivalent to aluminum
③ Young’s modulus is 1.5 times that of aluminum
④ Thermal expansion is equivalent to titanium
⑤ Thermal conductivity is equivalent to pure aluminum
⑥ Thermal conductivity, low thermal expansion, and small anisotropy
⑦ By changing the composition with our compounding technology, it is possible to design characteristic values and add functions according to needs.
⑧ 400mm x 400mm is possible
3. We will start supplying the sample materials from June 2023, for practical use, and aim to establish a manufacturing method for mass production within 2023.
As the application development of the “ACM series”, we offer a wide range of items from heat countermeasures to structural members, mainly for applications such as heat sinks and semiconductor mounting substrates as substitutes for graphite, copper and Al-SiC, and propose them as sustainable new materials for the SDG’s era.
For details, please contact us from our website “Contact Us”.
Automotive Engineering Exposition 2023 in Yokohama
Advance Composite Co., Ltd. will exhibit at the Shizuoka Prefecture booth at the “Automotive Engineering Exposition 2023 Yokohama” to be held from May 24 (Wednesday) to May 26 (Friday). We will exhibit the new materials “ACM-H1”, “ACM-H2” and “ACM-H3” metal matrix composite materials, as well as our group’s metal matrix composite materials. Please come and visit us.
Exhibition name: Automotive Engineering Exposition 2023 Yokohama
Official website of the exhibition: https://aee.expo-info.jsae.or.jp/ja/
[Exhibition period] May 24th (Wednesday) to 26th (Friday), 2023
[Venue] Pacifico Yokohama
[Organizer] Society of Automotive Engineers of Japan