High durability plastic metal glass



Scientists at the National University of Technology (MIT) have applied the cryothermal method to metallic glass and show how it can help to achieve the properties required for glass, in particular, to acquire plasticity without sacrificing the durability of glass. It is noteworthy that the article on this scientific study was published in the magazine “NPG Asia Materials”

Metallic glassĀ or (non-crystalline alloys) is used in many different fields, in magnetic materials, medical equipment, sports equipment and small motor equipment, as these lenses have great durability, wear resistance and corrosion.

However, all lenses made of metal have a large defect, they are slim plasticity (tend to be fragile). This defect can be eliminated by exposing the metal to “regeneration”, and the transfer of the material to a state of higher energy, which increases the resistance of plastic deformation without losing its strength.

Scientists from the University of Mississauga, along with Sergey Kitov, a graduate of the University, have studied how cryothermal affects the properties of metal lenses and this is a periodic method of freezing samples in liquid nitrogen.

“We have found that the application of cryothermal treatment can stimulate the renewal of some lenses and the relaxation of other lenses, depending on the components,” said Professor Dimitri Luzgin, head of the scientific team.

Scientists have found, thanks to an atomic force microscope, that cryothermal processing greatly enhances the ability of materials to resist tensile and stress when exposed to a flexible deformation on the surface of samples (in the thin layer tens of nano meters).

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But this effect disappears after placing the glass at room temperature. While the volumetric effect remains with time and allows for improvement of the alloy’s elasticity.

“Cryothermal treatment is a comprehensive and easy way to change the regeneration and relaxation properties of the metal glass,” said Dmitry Lozgen, “It is important that this treatment can both improve and degrade plasticity – this requires careful selection of the alloy components, Of the structure of atoms’ atomic bonding. ”

According to the researchers, scientists will continue to study the effect of this treatment on the structure and properties of different materials. The “taming” process will not only allow the metallic glass to gain high plasticity, but also other vehicles such as “crystal glass” which can be replenished more strongly due to uneven structure.


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