Tuesday, March 13, 2018

China Creating Invisible 'Cutting-Edge Super Materials'







China has built an assembly line to mass produce cutting-edge 'super materials' that can perform the previously impossible, according to the Chinese state broadcaster.
So far, the assembly line located in a lab in Shenzhen has manufactured different types of materials, including one that renders objects invisible, reported China Central Television Station in a documentary released last week.  
Although the station didn't explain what the invisibility cloak 'metamaterial' would be used for, according to Chinese news portal Sina, it is likely to be used on the country's warplanes, particularly the J-20.

What the Chinese refer to as 'super materials' are generally known as metamaterials, which are a new class of finely-engineered surfaces that could have properties unachievable with conventional materials.
Some metamaterials can bend infrared radiation such as visible light, which means they could be used to create invisibility cloaks.
And according to the Chinese Central Television Station, the Chinese scientists have managed to make such invisibility materials in bulk.

The report took the viewers inside the mysterious lab where Jin Xi, a doctor of Materials Science, and his team were busy feeding pieces of material from one machine to another.
Each piece, 80cm long and 60cm wide, is said to be the plated with bronze and would be used as the base material for the Chinese 'super material'.
A layer of special film, which could show some 20,000 patterns once exposed to light, will be added to this base material.
The patterns, as tiny as 0.2 square millimetres, are said to contain thousands of micro-structures invisible to the human eye.
These micro-structures are used to control the properties of metamaterials.
The report didn't mention what type of 'super material' the workers were making, but it claimed that Chinese scientists have developed metamaterials to help develop the country's aviation industry. 
A report from Sina, one of China's largest news portals, claimed on March 11 that the lab in question is the State Key Laboratory of Metamaterial Electromagnetic Modulation Technology in Shenzhen, a state-funded lab established in 2011.
The Sina report also suggested that the metamaterials would be used for military purposes. 
It also indicated that the invisibility material is likely to be used on J-20 fighter jets because the jet's chief engineer Yang Wei is also a member on the laboratory's academic board. 
China's latest J-20 stealth fighter jets were commissioned into military service last year and are operated by the Chinese Air Force. 



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