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China won new materials research, optical drives can fly

China won new materials research, optical drives can fly

  • Categories:News
  • Author:企宣部
  • Origin:转载
  • Time of issue:2015-05-29
  • Views:0

(Summary description)

China won new materials research, optical drives can fly

(Summary description)

  • Categories:News
  • Author:企宣部
  • Origin:转载
  • Time of issue:2015-05-29
  • Views:0
Information

From: Xinhua

        
Nankai University Professor of Chemistry and Physics Institute Professor Tian Jianguo Chen Yongsheng led the research team after three years of study to obtain a special graphene material which can be driven in a variety of flying light source include sunlight, including , the driving force which is obtained by conventional optical pressure more than 1,000 times, "light action" flight or will be possible.
        
In the past, a large number of studies, scientists have tried to use "light pressure" gained momentum. "Light pressure" is the pressure of light incident on the object being created. However, the driving force from the light pressure is minimal, can not meet the load requirements of aviation and aerospace. Professor Chen Yongsheng and other experts developed a graphene material that can be effectively driven flight in a variety of light sources, including sunlight irradiation include.
        
Reporters in the Key Laboratory of Functional Polymer Materials, Ministry of Education is located in Nankai University to see researchers a weight of 4 mg of the shape of "sponge" cake circle dimensional graphene material is placed into the vacuum tube. In a different light "push", the "sponge" instantaneous displacement of horizontal or vertical direction, the maximum travel distance up to 40 cm.
        
Chen Yongsheng said that this is due to the nature of the electronic properties of graphene itself, and this material special macro topography integrated form. This material can be seen as the macro is composed of numerous mutually independent electronic graphene sheet composed by chemical crosslinking composition, and therefore the whole, countless tiny graphene emitted electrons generated power and performance can be observed in the optical drive this is completely different from the traditional chemical rockets.
        
The researchers, the light source used in the experiment are weak, such as ordinary laser, a xenon lamp, outdoor experiments found that sunlight can also be driving such a graphene material movement, that is the driving source has no special requirements, it can be widely applied.
        
"This is what we have learned so far the scientific community for the first time a macroscopic object and a light push to achieve macro-driven." Says Professor Chen Yongsheng, through quantitative measurements, the force that graphene material in the light conditions to produce the traditional a thousand times more than light pressure. "By calculation, 500 kg load, if the use of such graphene-based drive windsurfing material preparation, the driving force is obtained at least in theory, to reach the acceleration of 0.09 meters per second."
        
The spacecraft is an important tool for human exploration of the universe, and the power source has been the fetters of humanity can not go further. Almost all of the aviation, space flight are chemically driven, that is, through the injection of chemical combustion to obtain a driving force, the optical drive direct flight is scientific community and the aviation dream for many years.

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