From Almighty Scholar to Chief Scientist

Chapter 333 Bend!Really bent!
Research on the synthesis method of this iron-based cuprate will start soon.

How to combine these two things is undoubtedly full of challenges.

After all, this is not an alloy, and the strengthening is successful if copper and iron are smelted together.

How to form a chemical bond between these two things and then connect them together is very difficult.

And the time has come from the Spring Festival to the end of February, almost a month has passed.

"Well, according to the calculation of electron topological bonding theory, the replacement of oxygen atoms and the intervention of other impurities will cause distortion of the crystal lattice. This change is mainly reflected in the side length of the crystal lattice, and the change of the angle between the crystal planes is very small, so We can regard a, β, and v as keeping 90 degrees."

"Well, from the point of view of the partial wave density of state analysis, the oxygen atom in it has a strong localization, and its hybridization with other surrounding atoms mainly occurs at an energy of about -8eV."

In the laboratory, two people in white coats were communicating, and there were many other people in white coats around them.

This is the research team organized by Lin Xiao, which is responsible for overcoming this superconductor.

The two people who communicated were Lin Xiao and Zhao Sheng, and the others were assistant researchers.

For these ordinary researchers, it is obviously a good thing to be able to join Lin Xiao's team. At that time, they can get a little light on whatever they can do, so this is also one of the benefits of doing experiments at the Dingguang Research Institute. One, maybe one is lucky enough to get a project with their Director Lin.

For example, this time, according to Lin Xiao, the thing they are researching is a high-temperature superconductor, and it is still the kind that can be bent, and other critical parameters seem to be quite good. so big.

But the only problem is that this thing is a bit too difficult to handle.

These ordinary researchers were all sitting there, either scratching their heads and thinking about what to do next, or looking at Lin Xiao and Zhao Sheng, expecting them to point out the future direction.

At this moment, Lin Xiao and Zhao Sheng were staring at the calculation results on the computer, touching their chins, lost in thought.

Both of them have attainments in computational materials, so they prefer to use computational materials science to assist the synthesis method.

In this way, after thinking for a long time, Zhao Sheng suddenly said: "No matter how I look at it, I don't think this thing can exist. Speaking of which, Professor Lin, the structural model of your thing is calculated and simulated?"

He was still a little puzzled, how did Lin Xiao come up with such a thing, especially the model in front of him.

Lin Xiao didn't answer, but said: "Actually, I think, the focus is on the oxygen atom. The model of the oxygen atom losing electrons and gaining electrons still needs to be refined."

"Well... But if you think about it this way, the way the two combine is really weird."

"It feels like..." Lin Xiao paused for a while, and suddenly his eyes lit up: "Like being pressed hard?"

"Well...the description is indeed somewhat similar." Zhao Sheng nodded, frowning and said: "It feels like, originally, these atoms could not form chemical bonds, but because they were pressed, and then the attraction It overcomes the repulsive force and connects together!"

"Yes."

Lin Xiao's eyes lit up more and more, and after a long while, he suddenly said, "I'll go out first, you can take a look here."

"What's the matter?" Zhao Sheng couldn't help asking, didn't they all talk about the key point at this time?
However, Lin Xiao had already turned around and left the laboratory. Seeing this scene, Zhao Sheng had no choice but to give up and looked at the things on the computer again.

This thing, as expected, is the same as the original research on RDX pure silicon crystals, it is difficult to see the possibility of success at all.

Of course, the pressure that Lin Xiao just mentioned is very interesting.

……

Lin Xiao left the laboratory and came to his own office.

The reason why he wanted to leave the laboratory was because the thought about stress he brought up on the spur of the moment sparked inspiration in his mind.

In his model of the superconducting mechanism, although there is no statement about the pressure, there is a statement about the pressure of the electron binding in the superconducting state.

"It's like under the influence of pressure, electrons combine to form electron pairs, and then after the pressure is restored, due to the influence of other internal electromagnetic forces, these electron pairs will not lose their binding... This is equivalent to saying , the superconducting state is preserved!"

The more he thought about it, the brighter he thought, Lin Xiao estimated that the room-temperature superconductor that the system rewarded him was able to maintain superconductivity at room temperature because of this reason!

"This is equivalent to saying that when preparing this iron-based cuprate superconductor, if enough pressure can be applied, it is possible for the oxygen ions in the cuprate to continue to lose electrons and then combine with the iron-based material!"

Thinking of this, Lin Xiao suddenly felt as if he had found a way to prepare this room temperature superconductor.

"So... how much pressure is needed?"

For this problem, in addition to the calculation of the electronic topological bonding theory, the superconducting mechanism model is also used for calculation, which is why he did not stay in the laboratory. Now, the superconducting mechanism model is still the only one in the world. people master.

Without thinking too much, he started to calculate directly.

Almost without thinking, he wrote a lot of calculations, and in a short time, he got the answer.

"Do you need at least 23.3 atmospheres?"

Lin Xiao frowned. Compared with the pressure required to achieve superconductivity through high pressure, this atmospheric pressure is still relatively small. However, if it is really necessary to carry out production in this environment, the cost will rise steadily.

But in the end, he let go.

This is a room-temperature superconductor, so it doesn't matter if the cost is higher, as long as it is produced on a large scale, as the marginal cost continues to decrease, even if the cost is high at the beginning, it may reach a generally acceptable level in the end.

Thinking of this, he immediately got up, returned to the laboratory, and said to Zhao Sheng: "To make this thing, we need pressurized production."

"Pressure production?"

"Well, under a certain amount of pressure, I think these two things that wouldn't react before should react now."

Hearing what Lin Xiao said, Zhao Sheng recalled their speculation just now, and finally nodded: "I think, it is indeed possible."

"Ah."

……

After making a decision, they will naturally start building this high-pressure reactor next.

This question is not difficult, especially for men of science and engineering like them, their hands-on ability is very good.

Therefore, it took about ten days to order all kinds of materials and electronic components needed, and then it took about seven days to complete a slightly crude high-pressure reactor.

This furnace can withstand up to 100 standard atmospheric pressure. It can be pressurized by filling inert gas, and can release the internal gas for decompression. This is intelligently controlled. After setting it on the computer, it can basically maintain the set value. under pressure.

Soon, things were settled and everything else was ready, and they began to prepare for synthesis.

"Start adding reactants."

In the laboratory, facing the fairly complicated reactor in front of him, Lin Xiao gave an order.

The interns and assistant researchers next to them immediately acted and added the iron-based reactants and cuprate reactants that had been processed. These reactants are very pure, and the impurities in them can basically be ignored. Not to the extent of silicon wafers.

Soon, "All joined!"

"Start the reactor." Lin Xiao said again: "The temperature is set at 1200 degrees Celsius."

"The reactor has started! Start heating!"

On the other side, Zhao Sheng, who was sitting in front of the computer, also asked: "Director Lin, what atmospheric pressure should we set?"

Lin Xiao said directly: "24."

"OK."

Zhao Sheng nodded, although he wondered why Lin Xiao directly reported a number with odds and wholes, but he didn't think too much about it, and directly completed the settings on the computer.

With the sound of gas filling inside, the current air pressure is displayed on the gauge of the air pressure sensor: 24.2.

The reaction begins here.

Everyone in the laboratory had an expression of expectation on their faces, waiting for the final shape of this thing.

As time goes by, the expected reaction time is up, and then the pressure will be reduced until the interior returns to a safe value, and then it will start to be released, and then the molten liquid inside will be poured into the mold, and it will wait for cooling and forming.

They did not prepare much this time, and the final molding volume was only about 100cm. There were a total of 10 molds, that is, ten strips with a cross-sectional area of ​​1cm and a length of 10cm.

Seeing these ten dark-looking products, everyone present showed excitement.

The surface color of the products they obtained before was not pure black, but a kind of silvery black, but now, such a color undoubtedly shows that this thing is already a brand new object!
"Okay!" Zhao Sheng suddenly became excited. From this point of view, it has been successful!

So he didn't intend to analyze whether the internal structure of this thing was the same as they originally wanted, but said directly: "Go get liquid nitrogen and see if it can meet the requirements of high-temperature superconductivity! By the way See if this thing can be bent! How tough is it!"

"Okay!" Several assistant researchers responded immediately.

Then two people ran to get liquid nitrogen, while the other person reached out and picked up one of them, and broke it hard, and it was able to bend!

And it seems that the toughness is particularly good, completely inheriting the toughness of the original iron-based material!
"it is good!"

Zhao Sheng immediately looked at Lin Xiao next to him, with excitement on his face, "It's bent! It's really bent!"

And Lin Xiao opened his mouth. He wanted to talk about the inspection later. After all, maybe they really succeeded, but considering the importance of room temperature superconductors, maybe we can wait?
But looking at Zhao Sheng's excited look, he didn't know what to say.

In the end, he still shook his head, forget it, let them all be happy, anyway, they all signed the non-disclosure agreement.

So he smiled and said, "Yes, it's bent."

(End of this chapter)