Exploring China's super new materials: or revolutionizing aerospace vehicles

Abstract Graphene is a new material, graphene, which was officially discovered in 2004. This name, which is unfamiliar to most of the public, is a topic that many scientists around the world are competing to study. This new material, which was officially discovered in 2004, not only allowed two British discoverers to obtain...

Graphene is a new material that was officially discovered in 2004.
Graphene, the name that is unfamiliar to most of the public, is a topic that many scientists around the world are racing to study. This new material, which was officially discovered in 2004, not only allowed two British discoverers to win the 2010 Nobel Prize in Physics, but also hopes to make "thin transparent paper-like mobile phones" and "one minute of charging" "Science and technology products" such as "batteries" and "body-like bullet-proof clothes like shirts" have become reality. Relevant persons of AVIC Aviation Materials Institute (hereinafter referred to as the Aviation Materials Institute) revealed to the Global Times on the 27th that they successfully used graphene and aluminum alloys to develop the â€œalkeny alloyâ€ in the world, and announced the new generation of series of materials with special properties. Perhaps it will revolutionize the future of aerospace vehicles.

Graphene is a new material of a single-layered sheet-like structure composed of carbon atoms. It is only one carbon atom thick and is the thinnest nano-scale material known and visible. This special structure allowed it to be the best in many worlds since its discovery: the strongest material ever, its strength is more than 100 times that of steel; the material with the fastest electron conductivity is 140 times faster than silicon. It is also the lightest solid material, the best conductive material at room temperature, with a light transmittance of 97.7%... Scientists from all over the world are competing to develop this new material, thinking it will "subvert the future of the world electronics industry ". In May of this year alone, Nanyang Technological University of Singapore announced the development of a graphene image sensor with a 1000-fold increase in light sensitivity; the new graphene material developed by the University of Liverpool in the UK is expected to replace the transistor made of silicon... Apple, Samsung and other companies are trying Using the conductive and transparent properties of graphene materials, a transparent cell phone as thin as a piece of paper is made, and it is not afraid of bending. It can be used to make a large-capacity battery, which is enough for a car to travel hundreds of thousands of kilometers.

Researchers from the Aviation Materials Institute told the Global Times that although the current research results of graphene are many, they are still mainly in the laboratory stage, and there is still a long way to go from industrial production. A big reason for this situation is that graphene is too expensive and is 15 times as heavy as gold, so it is also called "black gold." Aviation Materials has now mastered the technology of mass production of large-size, high-quality graphene films and high-performance graphene powders, laying the foundation for large-scale application of graphene.

In addition to the manufacture of electronic equipment, the high strength and toughness of graphene also bring new changes to materials science, which is especially important for the aircraft industry that â€œtry to reduce the weight per gramâ€. The â€œAlkeny Alloyâ€ produced by the Aviation Materials Institute using aluminum alloy powder and graphene powder in a certain proportion has a yield strength and tensile strength increased by 58% and 25%, respectively. It is the first in the world to manufacture high-end alloy materials using graphene. New way. According to reports, the research team will also use graphene to improve the performance of metals such as titanium alloys, which is expected to bring new changes to aircraft materials.

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