Shaking his head, Song Wenbai threw away the distractions in his heart and began to use the equipment in the laboratory to test the silver-gray copper-carbon-silver composite materials in the utensils.

On the side, Xu Chuan rested for a while and regained some energy and walked over.

Testing superconducting materials is tedious, but not complicated.

After all, all kinds of experimental equipment are basically fully automatic or semi-automated.

For example, there is a complete superconducting electromagnetic test system in the laboratory.

This system consists of an instrument for measuring the critical temperature and resistance of Tc, a Midas effect measurement device, a computer, a CASSY sensor and other equipment, which can test superconducting materials and reduce the experimental temperature to about 10K.

Of course, it is only a few basic key data that can test superconducting materials, such as resistance value, magnetic flux, etc. As for the analysis of the fine structure, crystal structure, characterization of the structure of superconducting materials, etc., additional equipment is required.

Under the control of Song Wenbai, the equipment of the superconducting electromagnetic test system began to operate, and the computers connected to these devices projected the relevant data in real time.

The large display is divided into four parts according to the XY axis, each displaying different data.

The resistance information value, the temperature control system value, the magnetic field index value, the AC magnetic susceptibility and other data to test the main properties of superconducting materials are displayed.

As the prepared copper-carbon-silver composite material is put into the superconducting electromagnetic test equipment, the program set on the computer starts to run.

Liquid nitrogen, which is as low as -196°C, begins to slowly inject into the cooling equipment, rapidly lowering the temperature of the measurement space.

0℃、-50℃、-100℃.

Soon, the temperature in the measuring space had quickly dropped below minus 100 degrees.

As the temperature decreases, the computer display screen, the resistance, temperature control, magnetic field indicators and other parameter curves also begin to fluctuate.

The resistance curve began to slide slowly, from 1.95x10^(-8)Ω·m all the way down.

Looking at the slowly decreasing resistance value in front of him, Song Wenbai couldn't help but swallow.

He couldn't help but resurface the words that Xu Chuan had just said in his mind.

A critical Tc is reached around 152K.

Is this really possible?

Looking at the temperature control data on the display, the temperature in the superconducting electromagnetic test space has been reduced to minus 110 °C under the rapid freezing of liquid nitrogen.

This temperature, converted to K degrees, has reached 163.15K, and as long as it drops by another 10K, then it can reach 152K.

Is it really possible? Inexplicably, a trace of expectation rose in his heart.

Involuntarily, Song Wenbai held his breath and stared at the screen tightly.

The temperature drop of 163.15 K to 152 K is not long for a superconducting electromagnetic test system that uses liquid nitrogen as a refrigerant.

After all, the temperature of liquid nitrogen itself reaches -196 degrees Celsius, which is almost 77 K, which is still a long way from the limit of what it can cool.

On the display screen, the temperature control data decreased little by little, and Xu Chuan also looked at the data with bated breath.

152K is the critical Tc data he calculated, and if it can be successful, it can really be said to open up a whole new world for high-temperature superconducting materials.

But whether he can succeed or not, to be honest, he doesn't have a lot of confidence in his heart.

After all, this kind of breakthrough can be said to break the previous way of materials research, simulating the structure of superconducting materials through superconducting mechanism data, and then preparing them through experiments.

This is a route that can be said to be almost completely different from traditional materials research.

With the decrease of the temperature control data, when the data on the display jumps to 155K, the resistance curve still does not change much, and the resistance curve still maintains a steady decrease.

However, in the next second.

A miracle happened!

When the data on the display jumps to 153K, it originally maintained a smooth downward curve, and it directly bottomed out at an angle close to 90 degrees like jumping off a cliff.

Squatting in front of the display screen, Song Wenbai, who was engrossed in holding his breath, saw this scene, and his pupils suddenly contracted.

"Resistance, really zero?"

Looking at the curve like a broken ECG, his heartbeat seemed to stop at this moment.

Staring at the screen in a daze, Song Wenbai felt that he couldn't breathe a little.

"How is that possible?"

"How is this possible!"

"At 152K, has it really become superconducting?"

After muttering a few words to himself, he suddenly realized something, and suddenly turned his head to look at the figure standing behind him.

At this moment, Xu Chuan also had a smile on his face and eyes.

That's right, he succeeded!

In the first second, the copper-carbon-silver composite film material in the superconducting electromagnetic test system was only a normal conductive material, and in the next second, it has completed the transformation.

At a low temperature of 152 K, it successfully achieves the transition to a zero-resistance superconducting state.

Looking at the data on the display screen, Xu Chuan's gaze was deep and far-reaching, as if he wanted to directly see the copper-carbon-silver composite thin film material in the superconducting electromagnetic test space through the void.

There, stimulated by a temperature of 152 K, the tiny thin film atoms quickly reassembled the array as if the army had received an order, forming a new crystal structure.

At this moment, the current passing through it, without any loss.

Obviously, this is what he has been looking for!

Although the temperature of 152K is not very high, it can even be said to be extremely low.

But in the history of the development of superconducting materials, relatively speaking, there is no doubt that this is an amazing achievement!

In the laboratory, Song Wenbai didn't care about the surprise that the resistance of copper-carbon-silver high-temperature superconducting materials was zero, and he looked at Xu Chuan in horror, as if he was looking at a monster.

After half a sound, he eased up and asked with difficulty, "How did you do it?" ”

The 152K high-temperature superconducting material is already an amazing achievement in itself.

Since the discovery of superconductivity by scientists in the last century, the research on superconductors in the materials community has never stopped.

But to this day, I have never heard of any country, laboratory or research institute that can achieve 152K high-temperature atmospheric pressure superconductivity.

It itself has already broken the history record of high-temperature overpressure superconducting materials.

As for the iron-based high-temperature superconducting materials studied by the Max Planck Institute of Chemistry in German, they can be superconducting at minus 23 degrees Celsius, which is not maintained at atmospheric pressure.

It is at an ultra-high voltage of 170 GPA to maintain superconductivity at minus 23 degrees Celsius.

Such harsh conditions can be said to make this material have no other practical value except for research value.

Even the pressure at the bottom of the Mariana Trench is only 1,100 atmospheres, while 170 GPA is 1.7 million standard atmospheres.

With such a high pressure, there is hardly any practical value except in the laboratory.

But in contrast, the material he is now experimenting with is at standard atmospheric pressure.

Atmospheric pressure 152K superconductivity, this parameter is announced, and it will definitely set off huge waves in the superconducting material industry.

What shocked him even more was that before the test began, he accurately predicted the critical Tc temperature of this copper-carbon-silver composite material.

This means that he has a clear grasp of the data of this superconducting material.

If he hadn't watched this material come out bit by bit in the lab, he would have felt that it had been taken from somewhere else and had already been tested.

Otherwise, how is it possible to know the superconducting critical Tc without testing?

Hearing Song Wenbai's question, Xu Chuan withdrew his gaze from the computer screen, glanced at him, and said with a smile:

"It's not that hard, if you can know the superconductivity mechanism of high-temperature superconducting materials, plus a little bit of math and knowledge of the materials themselves, you can do the same."

Hearing this, Song Wenbai was stunned for a moment, and then his pupils condensed into a point again, what did he hear? What is the superconducting mechanism of high-temperature superconducting materials?

Unable to help but swallow the air, he asked with a dry mouth, "You have found the superconductivity mechanism of high-temperature superconductors?" ”

Xu Chuan smiled and said, "I have to thank you, the low-temperature copper-carbon-silver composite materials that I researched before provided me with some inspiration and ideas. ”

"On those experimental data, I expanded some ideas and theories, and used the laboratory model to make some optimizations for copper-carbon-silver composites."

"Anyway, you've done a great favor."

Hearing this, Song Wenbai's heartbeat broke, and he quickly asked, "Are you saying that the superconductivity mechanism of high-temperature superconductors was studied by your geniuses?" ”

Xu Chuan nodded and said, "Theoretically speaking, yes, but I have also studied superconducting materials before, is there any problem?" ”

Hearing this, Song Wenbai swallowed his breath again.

What's the problem?

The problem is big, okay!

If he remembers correctly, it should have not been more than fifteen days since he got his previous data on low-temperature copper-carbon-silver superconducting materials.

In other words, in less than half a month, he figured out the superconducting mechanism that the superconducting materials community had not studied clearly for half a century!

What's more, he also used this mechanism + the mathematical model of the Chuanhai Materials Laboratory to re-complete the design of high-temperature copper-carbon-silver high-temperature superconducting materials!

And it's made!

What kind of perversion is this?

Will the Nobel Prize + Fields be able to do whatever they want and solve problems that others have not been able to solve for half a century?

Or is this the world of genius?

Casual play and research are the key points that others can't look up to?

The thoughts in his mind turned in an instant, Song Wenbai came back to his senses, took a deep breath, and couldn't help asking, "Can I read the superconducting machine theory of high-temperature superconductors?" ”

The superconducting mechanism of high-temperature superconducting materials can be said to be refusal of no one who studies superconducting materials, or even any researcher or scholar in the materials industry. He is no exception.

Xu Chuan said with a smile: "The core point of the superconducting mechanism of high-temperature superconducting materials lies in the 'strong electron correlation' effect, but I didn't bring the paper, if you want to read it, I can send you a copy tomorrow." ”

After a pause, he continued: "It's not early today, let's go back to rest after tidying up the lab." Tomorrow, you will continue to complete the performance test of copper-carbon-silver composite high-temperature superconducting materials. ”

"I still need to go back and sort out some things, and I'll leave it to you here."

Hearing this, Song Wenbai looked at Xu Chuan excitedly, nodded vigorously, and said, "Don't worry, boss, I will definitely handle this matter." ”

Xu Chuan smiled, turned around and left the laboratory.

Late at night, on the small Hongqi car, Zheng Hai looked at Xu Chuan who walked into the car with a smile and asked, "I thought you would live here today like yesterday." ”

Xu Chuan smiled and said, "The experiment is done, it's over for the time being, there's no need to live here anymore, it's still comfortable to live at home." ”

Hearing this, Zheng Hai also smiled, he didn't ask any more, and started the car and drove into the distance.

He didn't ask if the experiment was successful, or what Xu Chuan was doing.

He just needs to do his own thing, and as for the rest, those are not for him to ask.

Returning to the villa smoothly, Xu Chuan first took a hot shower, then wiped his hair and sat in front of the computer.

It would be late at night, but he had more important things to do than sleep.

After opening the theoretical paper on superconducting machines that he had completed two days ago, Xu Chuan began to make some modifications on it.

Completing an experiment by yourself can get far more out of it than looking at someone else's experimental data.

Sometimes, theoretical research and applied experiments do not conflict, or even complement each other.

The 152K copper-carbon-silver high-temperature superconductor contains the superconducting mechanism of high-temperature superconducting materials, although he already knows the basic principle, but behind this principle, there are more esoteric theoretical work waiting for him to complete.

For example, in the past, it was generally believed that excessive doping would lead to a decrease in the critical Tc of high-temperature superconductors, but today, he has found that overdoped copper-carbon-silver high-temperature superconductors achieve high-temperature superconductivity of 152K.

Although 152K is not a high temperature, although he can calculate the function between the doping data and the superconducting energy gap through the model, he has not yet figured out what kind of theory the effect of doping on superconductors should be explained.

Or how the strong electron correlation effect in high-temperature superconductors feels the action of the external electromagnetic field in the same way as the de Broglie wave, like the Aharonov-Bohm effect of charged particles, thus amplifying the insignificant wave-particle duality of a single electron to the macroscopic scale.

These are all deeper questions that need to be studied by him and by other researchers.

Of course, this is not a one-time effort, it takes a long time, countless experiments, and countless theoretical corrections to complete.

PS: Resume the double watch tomorrow, ask for a monthly pass!

(End of chapter)