MTL - The Science Fiction World of Xueba-Chapter 487 Room temperature superconductor

Pang Xuelin picked up the phone, the caller ID was Cao Yuan, and Pang Xuelin directly pressed the answer button.

"Hello, old Cao, what's wrong?"

"Professor Pang, success!"

"Successful ?!"

Pang Xuelin froze for a moment, his voice suddenly became louder.

Since the last time a unified superconducting theory was successfully constructed at the University of Science and Technology of China, Cao Yuan and Zhou Tong led them to the Qiantang laboratory and worked with the team of Li Changqing to prepare multi-walled carbon nanotube materials that meet high-temperature superconducting conditions according to Pang Xuelin .

But this is not an easy task.

Although Pang Xuelin and Li Changqing team worked together before, using the computer-controlled reaction black box, the legendary flying blade material was prepared and industrialized production was achieved.

But the monomer of the flying blade material is single-walled carbon nanotubes.

In the field of multi-walled carbon nanotubes, it is even more difficult to prepare high-purity ultra-long multi-walled carbon nanotubes.

After all, single-walled carbon nanotubes are only single-layered carbon tubes, and the diameter is sufficient to control at the time of preparation, while multi-walled carbon nanotubes are composed of multi-layered carbon nanotubes, in addition to the diameter of the tube, we must also consider Factors such as distance, structure, chirality, etc. between different carbon layers.

As for the preparation of multi-walled carbon nanotubes calculated by Pang Xuelin's theory, more factors need to be considered.

Pang Xuelin even made preparations that took three to five years, and it didn't happen that the team of Cao Yuan and Li Changqing completed the preparation of this room temperature superconducting material after just a few months.

No matter from which point of view, this is an extremely amazing achievement.

Cao Yuan on the other end of the phone was still a little bit excited, saying: "The sample was only produced last night. We started the test this morning. Until now, we can basically determine that the superconducting transition temperature of this superconductor is about 353K (80 ℃). The performance is very different, we successfully prepared a room temperature superconductor! "

Pang Xuelin pondered for a moment, and said, "I am now in Jiangda University, wait for the laboratory, and the rest will wait until I arrive."

"it is good!"

Hanging up the phone, Pang Xuelin found that perhaps because of his exaggerated tone just now, Xu Xincheng and Liu Tingbo were staring at themselves.

Xu Xincheng curiously said: "Professor Pang, what's wrong? Is there any new achievement over the Qiantang laboratory?"

Pang Xuelin nodded with a smile and said, "It's a result! But this matter is more important. I have to confirm it in the past. If there is no problem, this result should not be much worse than the lithium-air battery, or even more significant!"

"Not much worse than a lithium-air battery ?!"

"Meaning more important ?!"

Xu Xincheng and Liu Tingbo glanced at each other, some could not believe it.

You should know that the lithium-air battery has been used in mobile phones, tablet computers, notebooks, automobiles, drones, submarines, and even a new generation of passenger aircraft, transport aircraft and other fields since its launch last year.

The political effect caused by this product directly broke the United States 'dream of curbing China's development through trade wars, and even made Western countries' blockade of China's technology a waste of paper.

The economic effects of lithium-air batteries are even more exaggerated.

Since the official withdrawal of lithium-air batteries in October last year, world crude oil prices have been declining. From the highest point of more than 70 US dollars a barrel, fell to today's 15 US dollars a barrel.

There is even a joke about crude oil futures prices being negative.

Shale oil manufacturers in the United States went bankrupt because of crude oil prices hovering at low levels for a long time.

Those resource countries that rely on crude oil exports for economic transfusion are also in trouble.

As for the oil dollar circulation established under the Bretton Woods system, it has encountered an unprecedented challenge crisis.

On the contrary, RMB began to rise strongly with the support of lithium-air batteries and competed with the US dollar for the status of global trade currency.

It can be said that Pang Xuelin, with his own strength, has changed the global political and economic landscape and reshaped China's position in the world.

Because of this, Pang Xuelin said that this achievement can be comparable to that of lithium-air batteries. When even more important, Xu Xincheng and Liu Tingbo felt so incredible.

Pang Xuelin smiled and didn't tell them much.

The research on superconducting materials is still in a state of high confidentiality. Even if it is successful, it needs to be discussed with senior management when it is released.

Pang Xuelin is very clear that superconducting materials may not be able to have such a major impact on the global political and economic structure like lithium-air batteries in a short time.

However, the many potential applications of superconducting materials are enough to raise the entire industrial level of mankind to a higher level.

Not to mention, superconductors have an irreplaceable role in the fields of strong electricity, weak electricity, diamagnetism and other fields.

In the field of strong electricity, superconducting technology can make generators and motors compact, while the power is more powerful and the working performance is more stable. It replaces the current bulky and heavy power generation facilities, and also provides the possibility of low noise and military use of motors.

Although there is already superconducting machine technology, it is necessary to rotate the transfusion sealing device to keep the superconductor at the temperature of liquid helium.

Its performance directly affects whether the superconducting synchronous generator can operate safely and reliably.

In order to ensure the cryogenic state of the excitation coil, the liquid helium cryogenic device must have the properties of insulation, heat insulation, vacuum sealing and higher strength.

In addition, there are also problems in the manufacturing process of windings, coil detection and protection, reliability, etc. Therefore, the development of superconducting machines has been subject to various restrictions.

And the emergence of such superconductors at room temperature, UU reading www. uukanshu.com is enough to make superconducting machines an ideal power for steel rolling, fans, micro-mechanical systems, chemical industry, aerospace, navigation, mining, oil and gas refining, and other heavy industries.

In addition, superconducting power technology will be widely used in superconducting cables, superconducting transformers, superconducting energy storage, superconducting motors and other fields.

In the field of weak electricity, high-speed computers require dense arrangement of components and connecting lines on integrated circuit chips, but densely arranged circuits will generate a lot of heat during operation, and heat dissipation is a problem faced by very large-scale integrated circuits. And using this superconducting material to manufacture superconducting computers, its performance is even above the carbon-based chip.

The superconducting anti-magnetic applications include superconducting magnetic levitation conveyor systems, superconducting magnetic levitation trains and so on.

Using the diamagnetism of the superconducting material, the superconducting material is placed above a permanent magnet. Since the magnetic field lines of the magnet cannot pass through the superconductor, a repulsive force will be generated between the magnet and the superconductor, so that the superconductor is suspended above the magnet.

The emergence of superconductors at room temperature will greatly reduce the cost of superconducting magnetic levitation, and it is even possible to establish a superconducting magnetic levitation railway transportation system nationwide.

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