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Chameleon tanks

04.10.2016

In the Australian city of Adelaide, the annual exhibition Land Forces 2016 (Land Forces 2016), held by the Australian Department of Defense, took place. Particular attention at the exhibition was attracted by new technologies that allow tanks to change the color and structure of the camouflage pattern.

Despite the developments in the field of adaptive camouflage that have appeared in recent years, its use is limited to experiments related to the field uniform of fighters. And the camouflage of armored vehicles remains static, drawn on the object that it protects, with reference to the landscape and landscape of the theater of operations. To solve the problem, researchers at the University of South Australia, in collaboration with scientists from the Department of Defense Science and Technology Group, began developing adaptive camouflage for tanks using conductive polymers.

To do this, the armor would be coated with hermetically sealed electrochromic cells containing thin layers of polymer with an electrolyte between them. When an electric current is passed, the color of the polymer changes, and different shades can be achieved by changing the chemical structure of the polymers. The surface of the cells can be made from various materials, including glass, polycarbonate, or even polyethylene terephthalate (Dacron).

The main requirement for the application of this technology is the strength and low weight of electrochromic cells. Standard vehicle usage conditions assume normal operation in the temperature range of -40 to 80°C. In addition, the cells must withstand impact and scratches and withstand exposure to ultraviolet light. The work of Australian scientists is now focused on creating lightweight flexible cells up to 20 x 20 cm in size. They are attached to the surface of the tank with double-sided adhesive material and connected to the battery for power.

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