The Science Fiction World of Xueba

Chapter 370: Flying blade material

Keke--

Early the next morning, Pang Xuelin was woken up by his two daughters.

Then Yao Bingxia and Qi Xin gave Pang Xuelin a big white eye, wrapped his clothes and quietly returned to their respective rooms.

Fortunately, the three of them were arranged to live in the bedroom on the third floor. The privacy was better, so Mei Yuqing didn't find them absurd last night.

Pang Xuelin was so happy that he couldn't help grinning at breakfast.

My mother Mei Yuqing couldn't help but said, "Xiao Lin, what's so happy, silly?"

As soon as this word came out, two murderous eyes on the dining table instantly focused on Pang Xuelin.

Pang Xuelin hurriedly said, "Nothing. I just received news from the Carbon Nano Center. One project has been studied for a year, and I have just made a breakthrough. I will go there later."

Mei Yuqing said, "You've been lying in bed for so long, you just got out of the hospital, and you're busy again?"

Pang Xuelin said: "Mom, rest assured, I am in good health. Besides, hasn't the country arranged a medical team for me? Oh, yes, mom, I want to move back to Jiangbin Villa, or else It's not convenient to go to the Qiantang laboratory site ... "

Mei Yuqing said: "Huh, smelly boy, are you tired of living with us?"

At this time, Yao Bingxia, who was drinking porridge sitting opposite Pang Xuelin, said: "Aunt Mei, I'll stay with you here, and let Xiaolin brother live alone on the riverside."

Qi Xin also made up the knife and said, "Yes, Aunt Mei, Xiaoxia and I are here to accompany you ..."

While talking, the two women blinked proudly at Pang Xuelin.

Pang Xuelin couldn't help but be helpless. The two girls apparently were not even their opponents last night, but now they are fake and pretentious. They use their mother's potential to run against them, but they have nothing to do with them.

Mei Yuqing said with a smile: "This is not necessary, Xiaoxia Xiaoqi, you also follow Xuelin to live there Binjiang. When this child is working, I don't know how to take care of myself. You follow him and help I urge him. Whenever you eat or sleep, you must be on time. "

"what?"

Qi Xin and Yao Bingxia had a flush on their faces.

"what happened?"

Mei Yuqing said strangely.

"Oh, nothing, nothing ..."

Yao Bingxia quickly shook his head.

Qi Xin also shook her head.

Pang Xuelin tried grinning while drinking porridge.

Then quickly, his face changed, because he felt that he had stepped on each of his left and right foot insteps.

Pang Xuelin could only grin his teeth and endure the destruction of these two girls.

After eating breakfast, Pang Xuelin put down the bowl and chopsticks and said, "Mom, Zhou Chen and Zuo Yiqiu are already waiting outside. I will go first."

Pang Xuelin was in a hurry to rush to the Carbon Nano Research Center in the Yuquan Road Campus of Jiang Dayi, and Qi Xin and Yao Bingxia naturally would not follow, and they had to pack up and go to Binjiang when they waited.

Out of the villa, Pang Xuelin saw Zhou Chen and Zuo Yiqiu waiting at the door. There were three red flag cars parked on the roadside, two of which were red flag N501, and the one in the middle turned out to be red flag L5. , Have a certain change from the original L5, it feels a little younger.

Pang Xuelin curiously said, "Is this for me?"

Zhou Chen laughed: "Professor Pang, these three cars are specially built for you by Red Flag. They use Jinlong battery's full electric power and have a cruising range of more than 5,000 kilometers. At present, this should be the only three in the world that use Jinlong. Batteries for electric cars. "

Pang Xuelin couldn't help crying and laughing, but he did not expect that Red Flag would do so.

However, it can be understood that after the official launch of Jinlong Battery, in just one month, domestic car sales have fallen by 10% directly, and Tesla and other electric vehicle brands have been cut.

Many people who are preparing to buy a car are waiting to see, waiting for the emergence of Jinlong battery cars, they can start as soon as possible.

Therefore, major car companies are trying their best to establish relationships with the Golden Dragon Group, hoping to become one of the first manufacturers to launch Golden Dragon battery vehicles.

At present, Hongqi Automobile has been designated as the first batch of Jinlong battery car manufacturers, and it will be built into a business car and high-end luxury electric car brand in the future.

As for the other finalists, they are mainly domestic brands, such as Geely, Roewe, BYD, and Weilai.

For Tesla, Volkswagen, Toyota, Mercedes-Benz, BMW and other brands, due to export control reasons, China can only enter the second batch of authorized lists after China and other countries complete negotiations and reach an export agreement for Jinlong Battery.

From this perspective, it seems that Hongqi has ordered a car for him, which is not a big deal.

After getting on the car, the engine started silently. Soon, Red Flag L5 was out of the villa area under the guard of two other Red Flag N501s.

Then outside the villa area, two more police cars followed.

Pang Xuelin was helpless, and his security level seemed to have improved again.

However, it is understandable that the strategic significance of Jinlong Battery is too great, and he has just awakened from a coma. The country attaches great importance to his personal safety.

When I arrived at the Carbon Nano Research Center, it was already 10 am.

President Xu Xincheng of Jiang University, Xu Xingguo, Dean of the School of Materials Engineering, Li Changqing, deputy director of the Carbon Nano Research Center, and Wan Yi, deputy team leader of the high-performance carbon nanotube fiber material (flying blade material) project team, have waited a long time.

"Academician Pang, I heard Lao Xu said that your high-performance carbon nanotube fiber material project team is going to officially start the feeding experiment today. Don't mind me coming to see it."

Xu Xincheng said with a smile.

For Pang Xuelin, Xu Xincheng is now full of confidence. Before anyone was optimistic about the lithium-air battery project, he could make such a big move. So, he planned a one-year high-performance carbon nanotube fiber material project?

You know, Jiang Da also invested a lot of money in this project.

If he can really make high-performance carbon nanotube fibers in theory, even his layman can understand what it means.

This will be the strongest super material in the world.

This carbon nanotube has hundreds of times the strength of steel, has excellent mechanical and thermal properties, and has extremely broad application prospects in aerospace and other fields.

What's more, according to Wanyi, what they have to do is to prepare high-density macros.

In other words, it has the ability to mass-produce industrial production.

Even if the output is not high, it can play a crucial role in some key areas, such as hypersonic vehicles, rockets, heavy satellites, space stations, and manned moon landings.

And to a certain extent, if this material is to succeed again, then in the field of carbon nanomaterials, Jiangda has another discipline that has taken the top position in the world.

You should know that in the past two years, with the great success of Pang Xuelin at Jiangda University, a large number of talents have been cultivated and attracted to join.

At present, Jiangda University has gradually emerged from the competition with Fudan, Shanghai Jiaotong University, NTU, and China University of Science and Technology, which are located in the south.

Now in China, it has the reputation of North Qingbei and Nanjiang University.

As long as Pang Xuelin has been staying at Jiangda University, and this momentum continues, Xu Xincheng is fully confident to develop Jiangda into a Chinese version of MIT.

Pang Xuelin was naturally unclear about Xu Xincheng's thoughts, and he smiled and said, "Of course I don't mind."

Then, he greeted Xu Xingguo, Li Changqing, and Wan Yi a few words, and went directly to the experimental center where the Flying Blade Materials Project Team was located. It was a five-story building covering an area of ​​500 square meters.

This experimental center is located to the west of the School of Materials Engineering. It used to be the site of the Nanomaterials Institute of the School of Materials Engineering. Later, after the completion of the new experimental building, the Nanomaterials Institute moved to a new experimental building. Requisitioned.

When entering the experiment hall, the first thing that caught everyone's sight was a huge ring-shaped reaction black box. The diameter of this ring-shaped structure was more than twenty meters. The diameter of the reaction black box was more than one meter. It is a thin mouth that is only the size of silk.

"Professor Pang, this is the outlet of the flying blade material you said?"

Pang Xuelin nodded with a smile and said, "The single-walled carbon nanotubes with a meter length are only about 10 nanometers in diameter. The single-walled carbon nanotube fibers we are preparing today will consist of five hundred meters of single-walled carbon nanotubes. It is expected to have a diameter of 4-5 microns, which is equivalent to hair. If everything goes well, we will also prepare kilometers of flying blade materials in the future. We can even make carbon nanotubes to make them with super toughness. And stiffness of carbon nanotube structural materials. "

Xu Xincheng laughed: "Okay, then we won't waste time, or should we start now?"

"it is good!"

Pang Xuelin nodded and took everyone to the control center.

The control center was already full of members of the project team. Pang Xuelin shook hands with these people one by one. After a hard voice, it was announced that the first preparation of the flying blade material project was officially started.

With the startup of the machine, a buzzing roar can be felt even in the lobby of the control center.

However, although the reaction black box is huge, it is only an experimental stage. Considering various factors, the reaction speed is controlled quite slowly.

According to the calculation of the project team, only one centimeter of fiber can be grown per hour. To complete the preparation of meter-level carbon nanotube fibers, it takes at least four to five days. Considering the factors such as machine downtime, the actual results must be at least Wait until a week later.

What Pang Xuelin wants to do today is just an experimental operation. Only a part of the centimeter-length sample needs to be prepared. After testing, it is determined that there are no problems before the reaction black box enters the large-scale full-power preparation stage.

It was also during lunch time to announce the start of preparation, but no one wanted to leave the control center. The lunch was brought in by the staff of the cafeteria and dealt with it casually.

At 2 pm, the first 2.8-cm-long carbon nanofiber sample was taken offline, and then sent by the project team members directly to the electron microscope center for testing.

At 5 pm, the first batch of scanning electron microscope photos and analysis reports with a resolution of 3.5 nanometers appeared in front of Pang Xuelin.

Wan Yi, Li Changqing, Xu Xingguo, and Xu Xincheng all came together one by one.

Appearing in front of Pang Xuelin was a collection of tube-shaped objects arranged as a whole.

[Figure 1 shows a neat arrangement of tubulars under a graphite substrate, showing that the growth direction of single-walled carbon nanotubes is unidirectional, which is consistent with the expected results. Figure 2 is the electron diffraction spectrum of single-walled carbon nanotubes. The 000l-type diffraction point in the figure is very strong, because the plane family on the two walls parallel to the incident electron beam in normal space just meets the law of the band axis. In contrast, hk0-type points are much weaker than the 1010-type points in the figure. In addition, the spots other than 000l have obvious streaks, the direction is perpendicular to the tube axis, and the intensity weakens outward from the circle of hk0. And these spots are arranged in a hexagon, which can be attributed to the flat hexagonal structure of the carbon ring. Close observation shows that satellite points are symmetrically distributed on both sides of these indication points. They are located on a circle with the length and radius of the reciprocal vector. These satellite points are generated by the spiral structure in real space and the resulting top-bottom effect ...]

[The projections on the left and right sides of Figure 3 are not completely symmetrical, indicating that the layer spacing of some slices is different. The asymmetry of the projection surface reflects that the tube body of carbon nanotubes is not a standard round tube structure, and its cross-section may have a polygonal cut surface structure. For the asymmetry of Figure 3, it can be explained with Figure 4B. The values ​​of d on the left and h on the right are different. When Figure 4 is rotated 90 degrees again, symmetrical stripes will be generated on the left and right sides.]

...

After reading the SEM report, Pang Xuelin gave it to Wan Yi next to him, and after reading it, he handed it to Li Changqing.

This report was then passed on one by one to the project team members, and finally passed to Xu Xincheng.

"How about Academician Pang?"

Xu Xincheng is not an expert in the field of carbon nanotubes ~ www.NovelMTL.com ~ I can only look at it, but from the expressions on everyone's face, he can feel that this sample performs very well.

Pang Xuelin smiled, "If we usually prepare large-scale large-sized single-walled carbon nanotubes, their orientations are generally disordered. These uniformly aligned single-walled carbon nanotubes have shown that our experiments are half successful. Next It depends on the performance of this equipment when it is running at full power. If it is running at full power, we can prepare carbon nanotube fibers of more than ten centimeters per hour, remove four hours of downtime maintenance, and keep running for the rest of the time, five days. It can reach one meter. Let's see how long single-wall carbon nanotubes can be prepared in the end. "

Wan Yi on the side also nodded and laughed: "Anyway, I am very confident. As long as this device can continue to run stably for more than one month, it shows that Professor Pang's overall solution is completely feasible. Next, we can completely use this device. To upgrade and accelerate the synthesis of single-walled carbon nanotube fibers. "

Xu Xincheng said with a satisfied smile on his face, "Professor Pang, Professor Wan, then you will work hard for you."

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