A super-strong aluminum alloy has been created. Free Technical Library News

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Ultra-strong aluminum alloy created

21.01.2018

Specialists from Purdue University (USA) have created a new aluminum-based alloy, which is as strong as steel and can be used as an anti-corrosion coating. To do this, aluminum changed the crystal structure.

The fact is that any metal consists of layers of crystals. But if there is a “laying defect”, due to which several layers are missing, the material is stronger. University specialists tested this in practice by creating aluminum with missing layers in the crystal lattice. True, it was not easy, because aluminum has a high stacking defect energy, that is, it is able to repair defects on its own.

To solve the problem, a laser was used to bombard ultrathin aluminum films with silicon dioxide particles. The second method is magnetron sputtering, which makes it possible to introduce iron atoms into the aluminum crystal structure.

The results showed how to make aluminum alloys that are comparable or even stronger than stainless steel. This discovery has great commercial potential.

Thus, the resulting material may be one of the strongest ever made by man. But, more importantly, the technology can be mass-produced.

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The watch is equipped with a touchscreen 1,3-inch display with a resolution of 240 x 240 pixels. Applied Nordic NRF52832 processor. Bluetooth 4.2 wireless connection is used to exchange data with a smartphone.

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