According to research published in the journal Nature on 23/12, materials scientists at the University of California – Los Angeles (UCLA), USA, successfully created an alloy super hard and super light. The ratio of hardness to mass of the alloy far exceeds that of most alloys currently in use.
The researchers emphasized that the introduction of this special alloy is only the beginning of a series of other innovative inventions on new materials. After they mastered the technique of evenly dispersing nanoparticles in metal.
“Theoretically, nanoparticles can enhance the strength of metals without reducing their elasticity, especially for light metals like magnesium. However, this is the first time that ceramic nanoparticles have been developed. Successful dispersion in molten metal, “said Professor Xiaochun Li at UCLA.
“Using the principle of doping and material handling techniques, our research results open up a new way to improve the performance of many different metals, meeting energy challenges.” and the sustainable development of society today, “Li said.
After treatment, the researchers tried to blend a large amount of nanoparticles into magnesium. The material obtained showed a significant improvement in durability, rigidity, elasticity, and heat resistance.
Previous research has shown that ceramic nanoparticles after being put into metal tend to gather together instead of dispersing evenly, making the metal harder but elasticity decreases. The team solves this problem by dispersing nanoparticles in the molten alloy of magnesium and zinc.
Magnesium is abundant in nature, enabling large-scale technology applications. Scientists hope to be able to quickly develop industrial applications for new metals. “The results we have obtained so far are just the outer shell of the treasure that hides a new generation of metals with breakthroughs in properties and functions,” Li said.