American scholar Ranga Dias said it created superconducting materials that can work at room temperature and became headlines of the science and technology circle. In this regard, experts in the field of superconducting in China believe that "room temperature is overwhelming"Director" is still far from the actual application.
According to the surging news on Thursday (March 9), Cai Chuanbing, director of the key laboratory of high -temperature superconducting in Shanghai, believes that the research results shown by Dias this time "have a certain amount of research results," there is a certain amount of some research results.Reliability "," Assume that its data is correct, after more scientists follow up their research results, there may be major breakthroughs in this field. "
There are two highlights of the second research results. The first is to turn the original extreme high pressure 267GPa into a relatively low pressure 1GPa.However, Cai Chuanbing also pointed out that 1GPa still belongs to the category of high pressure and is not as practical as Volkswagen expects.In addition, his report topic adopts the ambiguity of "nearly normal pressure", which is also exaggerated.Compared with the original, 1GPA is really closer to normal pressure, but there is still a distance from the real normal pressure.
The second highlight is that this time Dias adopted a new element combination and introduced rare earth metals-LuTetium (LUTETIUM), which synthesized the trifle hydrogen (N-LU-H), unlike the carbonate hydrogen he used to use.Cai Chuanbing said that the elements of 非常 are very rare. Generally, there is no laboratory, so there is almost no previous attempt. This time, it has the possibility of component innovation and success.
At the American Physics Spring Annual Meeting on March 7, Langga Dias, a physicist at the University of Rochester, held a lecture, saying that his team created super -working at room temperatureGuide material.However, the previous room temperature superconducting materials papers of the Dias team have been withdrawn by natural magazines, which has also caused Dias's research results to accompany huge controversy.
The room temperature superconducting materials released by Dias this time are said to work under relatively low pressure.He introduced that the team discovered a compound composed of hydrogen, nitrogen, and 镥. At a temperature of 294K (that is, 21 ° C), the material resistance can be reduced to 0, but this still requires 1GPa pressure to achieve the superconducting of the material to achieve the material of the material.Performance, this is about 10,000 times the atmospheric pressure, which is far lower than the millions of atmospheric pressure previously required by the room temperature superconducting.
The superconducting refers to the characteristics of the resistance equal to zero under specific conditions and the material with completely anti -magnetic properties, but the requirements of the conditions are often very harsh.EssenceAt present, the critical temperature of the more advanced high-temperature superconducting materials is -196 ° C. If you want to achieve superconducting at room temperature, it is often enough to crush the vast majority of material.It is still unable to be applied.
