The world's leading of composite material technologies-China
Writer： admin Source： MDM Date：2016-04-14
The world's leading of composite material technologies-China
Metamaterials (Metamaterial) is a kind of new material of the 21st century, it has special properties that natural
materials do not have, which mainly come from the artificial special structure. At present these materials mainly used in
the field of electromagnetic and acoustics.
Recently, the British media said, Xi'an, China and the defense technology company has set up a metamaterial national
defence research and development center. The company mainly engaged in the continuous wave radar, photoelectric, sonar
detection system research, the production of "hunt shadow" short-range air defense information systems and other
equipment appearanced at the Zhuhai airshow.
British media reported that China Xi'an and defense technology company is one of the fastest growing private companies
in China, the company recently announced it will set up a metamaterial defence research and development center
The company announced on June 24, the new facility will focus on the application of metamaterials to research in the
field of military and aerospace, the so-called metamaterials is a kind of artificial composite materials, has the structure not
found in nature materials.
Xi'an Tianhe company headquarters is located in the Xi'an center, they announced their new development center will
have environment simulation facilities, a dark room and other laboratory, its purpose is to develop super material used in
high-performance products, such as related sensors, stealth and electromagnetic fields.
In essence, metamaterial is a novel material design thought, this thought basis is the design through a variety of
physical structure to breakthrough the limitation of some superficial nature, thus material with exceptional functions.
So far the developed "metamaterials" includes "left-handed materials, photonic crystals," "super magnetic material",
etc. Metamaterials design idea declare that people can be in the premise of not violate the basic laws of physics, Artificial
obtained superior physical properties of the material has a very different nature of the "new material", bring the design
and development of functional materials into a new world.
Composite materials using history can be traced back to ancient times. Since the use of rice straw or wheat straw
enhanced clay and has been used hundreds of years of reinforced concrete are compounded by two materials.
In the 1940 s, due to the needs of the aviation industry, glass fiber reinforced plastic was developed (commonly known
as glass fiber reinforced plastic), since then the name of composite material came to the world.
After the 50's, the carbon fiber, graphite fiber and boron fiber high strength and high modulus fibers were developed
successively. The aramid fiber and silicon carbide fiber turned up in the 70's. The high strength and high modulus fibers
can combine with synthetic resin, carbon, graphite, ceramic, rubber etc. Nonmetal substrate or aluminum, magnesium and
titanium metal matrix composite, and form the distinctive composite materials.
The modern high-tech can’t develop without composite materials, composite materials plays a very important role to
the development of modern science and technology. Composite material research depth and application scope and the speed and scale of the production development, has become an important symbol to measure a country's the advanced
level of science and technology.
Since the 21st century, the global market of composite materials grow fast, Asia especially China market is growing
rapidly. China's average annual growth of 15% between 2003 and 2008, India was 9.5%, the average annual increase of
only 4% in Europe and North America.
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