Chapter 410 New ideas for room temperature superconductivity

"My personal suggestion is not to rush to promote 202K high-temperature superconducting cable technology..."

The reason Xu You suggested this was not because he was worried that the technology was not mature enough.

But there are some other ideas.

In the field of superconductivity, Xu You believes that it is far from the end.

In the proposal, Xu You clarified the theoretical basis for making these suggestions.

At present, various studies on superconductivity are in orderly progress.

Within a few years, it is very promising to achieve another major breakthrough in the field of superconductivity.

Although the construction of high-temperature superconducting cables plays a great role in saving transmission losses, the construction of the cable itself requires a lot of cost.

This part of the cost is difficult to recover in the short term, and may even take decades to recover.

If better superconducting materials are discovered within a few years, it will need to be rebuilt.

Xu You's proposal was well-founded and received unanimous internal approval.

After all, in the field of superconductivity, there is no one in the world who is more professional and authoritative than Xu You.

…

In a recent report, the room-temperature superconducting project studied by Lin Shi and others also made new progress.

After many experiments, it has been proved that the superconducting critical temperature of many high-temperature superconductors increases to varying degrees under ultra-high pressure and intensity.

These superconductors can all be called "normal temperature superconductors" in a broad sense.

"Mr. Xu, we have discovered several superconducting materials. In the range of 200GPa to 500GPa, their superconducting critical temperatures exceed 300K. As long as extremely high pressures are met, they can indeed achieve superconducting at room temperature."

300K in thermodynamic temperature is approximately equivalent to 27 degrees Celsius, which can be said to be truly normal temperature.

Although before this, many people believed that high-voltage room-temperature superconductors had only theoretical significance and no practical application value.

But Xu You now feels that this may provide a new idea for realizing room-temperature superconductivity.

"Very good, what we have to do next is to study the core mechanism of how these superconducting materials can increase the critical temperature of superconducting under high pressure. During this period, I will do more experiments with you."

Now that Xu You has given suggestions to delay the popularization of 202K high-temperature superconducting cable projects.

Xu You should naturally shoulder the responsibility and put the progress of the project on the agenda.

If there is nothing particularly important, Xu You will follow the entire experiment.

In the next experiment, Xu You participated in the experiment as scheduled.

"Lin Shi's current level of experimental operation is really superb."

Seeing Lin Shi's skillful operation during the experiment, Xu You couldn't help but marvel in his heart.

The synthesis and measurement of high-pressure materials has always been a huge challenge for various laboratories.

In particular, it is very difficult to use diamond anvils to achieve ultra-high pressure technology.

Other top scientific research teams in the world also encountered many problems when conducting similar experiments.

It is common for diamonds to be broken due to operational errors.

Compared with these problems of wasting resources, the more frightening thing is that huge costs have been spent and the experiment has not been successful.

If it is due to some force majeure factors, there is nothing to regret.

If it's due to poor technology, operational errors, etc., it's really unjustifiable.

During the lunch break in the experiment, Xu You went to find Lin Shi.

"What's wrong, Teacher Xu?"

"It's nothing, I just want to praise you. The experiment was really well done. Especially the use of diamond anvils has at least reached the top level in the country."

Being praised by Xu You in person, Lin Shi also felt flattered.

"Did I hear correctly? I actually got praise from Teacher Xu? Wait a minute... Teacher, don't you have anything else to criticize me for?"

"In your mind, am I the one who likes to criticize students?" Xu You said with a bitter smile.

"No, it's just that I'm not used to being praised by you. I feel like I'm not that good yet."

"Don't be so unconfident. Praise should be given when praise is due. If it weren't for your high operational accuracy, the project would not be progressing so fast."

"Hey, the main thing is that I really feel sorry for those diamonds. If I break a pair, I will lose 20,000 yuan, so I must be more careful."

Xu You knew in his heart that Lin Shi's talent was outstanding and he was also a top student in Jijing University, which was full of talents.

But compared to real geniuses like Lou Song and Nie Jie, Lin Shi is still inferior.

What impressed Xu You the most was not Lin Shi's talent, but Lin Shi's hard work.

As early as when Xu You and Lin Shi met for the first time, when they were studying competition together.

Lin Shi did not feel flinched by Xu You's excellent results. Instead, she faced the difficulty and took the initiative to sit next to Xu You.

For no other reason than to compete with the best students.

Xu You still remembered that when Lin Shi first participated in the experimental training, the experimental operation techniques were also very unfamiliar.

Unexpectedly, in the past few years, Lin Shi has made leaps and bounds in experimental operations.

If he persists like this, Lin Shi is very likely to become a physicist who will go down in history.

After a period of intense experimentation.

The project team summarized the unified rules of these normal-temperature superconductors under ultra-high pressure.

"These superconductors, under ultra-high pressure ranging from 200GPa to 500GPa, change the atomic spacing inside the material, and at the same time promote a phase change in its structure. This allows these materials to obtain some special electronic structures and physical states." Lin Shi

said.

Such changes do not require very low temperatures.

As long as the pressure is high enough, these changes can also be achieved at room temperature.

After summarizing these rules, Xu You came up with a new idea.

"Is it possible to cause similar changes in materials without resorting to external conditions of ultra-high pressure? In other words, can a material be created that has similar special properties under normal pressure?

?”

Xu You doesn't know if other scientists in the world have proposed this idea.

But at least in the various documents and materials that Xu You has read, no scientist has ever put forward a similar hypothesis.

After determining this direction, Xu You began to think about specific solutions.

When studying high-temperature superconducting materials, Xu You once used a set of programs he wrote to predict the superconducting properties of materials.

These predictions are extremely accurate at lower temperatures, and even the superconducting critical temperature does not have much error.

But when approaching 210K, the error begins to become significantly larger.
Chapter completed!