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[Solar_Express]

3D Printing Article..another characteristic of 3D printing – the ease with which one can change details in the design – is also one of the risks, and the US Department of Defense (DoD) is thinking about the danger of sabotage, either deliberate or accidental, involving the use of faulty faked parts. “Some faked electronic parts have already been sold to the DoD,” says Thomas A. Campbell of Virginia Tech, co-author of a paper on Additive Manufacturing for the National Defense University, “so they are concerned”.

Campbell and his colleagues at Virginia Tech have been working on certifying the authenticity of products by embedding quantum dots in 3D printed materials. Quantum dots are nanocrystals produced from semiconductor materials. They glow under infra-red light and can be deposited inside 3D printed objects in unique randomised patterns. Virginia Tech’s work to create anti-counterfeiting systems with quantum dots has been licensed by Quantum Materials Corporation to bring it to commercialization.

http://futurelab.assaabloy.com/en/3d-printing/