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VHD Technology

Technology Built for Scalable Manufacturing

Shaping the future of Heat Management

VHD's high thermal conductivity, high thermal diffusivity and anisotropic heat-spreading characteristics enable the manufacture of lightweight thermal management products, designed to deliver low thermal resistance for high heat flux and high power density applications.

Thermal management solutions incorporating VHD products can deliver system-level impacts: reducing overheating events, increasing product performance, and extending battery performance.

Raw
Ingredients

Main ingredient is
graphite flake.

Raw<br>Ingredients

VHD
Technology Process

Simple multi-stage process to manufacture VHD blocks:

MixPressBake

Process designed for
mass production: scale
and cost.

VHD
Blocks

VHD Blocks with
Superior Properties.

Able to be produced in a variety of shapes and sizes.

VHD<br>Blocks

VHD
Products

VHD Blocks machined into the desired end user product.

Heat sinks, heat spreaders, cold plates.

VHD<br>Products
Background

Next-Generation Innovation

VHD Technology represents cutting-edge innovation — a technology that produces an advanced graphite-based material for mass market applications, with industry-leading material properties, some of which have never been achieved before in commercial mass market production.

GCM has full global ownership of the technology to produce VHD blocks, including all rights, titles, and interests in the intellectual property.

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VHD's Properties

Efficient and Customisable Production

VHD Blocks are highly customisable, and their rapid, moderate-temperature production process enables efficient and cost-effective manufacturing. This method enhances energy efficiency and supports sustainable production practices. VHD products can be custom-engineered, and products with fins as thin as 750 microns have been achieved.

Exceptional Properties

Independent testing has demonstrated that VHD (in-plane) outperforms conventional materials such as copper and aluminium, both of which are facing increasing supply constraints and competing demand pressures. With its low bulk density, VHD material not only exhibits exceptional thermal performance — it is significantly lighter than conventional metals.

During like-for-like testing:

  • VHD (in-plane)
    Thermal conductivity of 422 W/m·K and a thermal diffusivity of 286 mm²/s
  • Copper
    Thermal conductivity of 328 W/m·K and a thermal diffusivity of 98 mm²/s
  • Aluminium
    Thermal conductivity of 142 W/m·K and a thermal diffusivity of 63 mm²/s

Thermal Conductivity

422
W/m·K
328
W/m·K
142
W/m·K
VHD
Copper
Aluminium

Thermal Diffusivity

286
mm²/s
98
mm²/s
63
mm²/s
VHD
Copper
Aluminium

Density

2,000
kg/m³
8,960
kg/m³
2,700
kg/m³
VHD
Copper
Aluminium

Applications in Rapid Growth Markets

AI Servers and Data Centres

Computing

Consumer Electronics

Power Electronics and Industrial Applications

EV Infrastructure

Unmanned Vehicles