The Science Fiction World of Xueba

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Early the next morning, Pang Xuelin woke up after being kicked out of bed by two women.

Then Yao Bingxia and Qi Xin gave Pang Xuelin a big roll of their eyes, wrapped their clothes and quietly went back to their respective rooms.

Fortunately, the three of them were arranged to live in the bedroom on the third floor, with better privacy, so Mei Yuqing and the others did not discover the absurdity of last night.

Pang Xuelin was in a good mood, and couldn't help grinning while having breakfast.

Mother Mei Yuqing couldn't help but said: "Xiao Lin, what's so happy about it, you silly joy?"

As soon as these words came out, the two murderous eyes at the dining table instantly focused on Pang Xuelin.

Pang Xuelin quickly said: "It's nothing, I just received news from the Carbon Nano Center that there is a project that has been researched for a year and has just made a breakthrough. I will go there later."

Mei Yuqing said: "You have been lying in bed for so long, and you just came out of the hospital, are you going to be busy again?"

Pang Xuelin said: "Mom, don't worry, I'm in good health. Besides, didn't the country arrange a medical team for me? Oh, by the way, Mom, I want to move back to Jiangbin Villa, otherwise It is inconvenient to go to the Qiantang laboratory construction site..."

Mei Yuqing said: "Hmph, brat, do you feel 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, let Brother Xiao Lin go to live in Jiangbin alone."

Qi Xin followed suit and said, "Yes, Aunt Mei, Xiao Xia and I are here to accompany you..."

While talking, the two girls winked at Pang Xuelin triumphantly.

Pang Xuelin couldn't help but feel a little helpless, these two girls were obviously not his opponents last night, but now they are pretending to be tigers, taking advantage of their mother's power to run on him, but he has nothing to do with them.

Mei Yuqing said with a smile: "That's not necessary, Xiaoxia Xiaoqi, you should also follow Xuelin to live in Binjiang. This kid doesn't know how to take care of himself when he is working. You follow him and help him. I will supervise him well. Usually, whether you eat or sleep, you must be on time."

"ah?"

Both Qi Xin and Yao Bingxia blushed slightly.

"What's wrong?"

Mei Yuqing said a little strangely.

"Oh, nothing, nothing..."

Yao Bingxia quickly shook his head and said.

Qi Xin also shook his head.

Pang Xuelin tried his best to suppress a smile while drinking the porridge.

Soon after, his expression changed, because he felt that his left and right feet had been trampled on a few times.

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

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

Pang Xuelin was in a hurry to go to the carbon nanometer research center of Jiangda Yuquan Road Campus, Qi Xin and Yao Bingxia naturally wouldn't follow, they had to pack up and go to Binjiang later.

Coming out of the villa, Pang Xuelin saw Zhou Chen and Zuo Yiqiu waiting at the door. Three Hongqi cars were parked on the side of the road, two of them were Hongqi N501, and the one in the middle was actually a Hongqi L5. , have some changes from the original L5, giving people a younger feeling.

Pang Xuelin asked curiously, "Is this a change of car for me?"

Zhou Chen said with a smile: "Professor Pang, these three cars are specially built by Hongqi Company for you. They are powered by all-electric King Long batteries and have a mileage of more than 5,000 kilometers. At present, they should be the only three cars in the world that use King Long. battery electric vehicles."

Pang Xuelin couldn't help crying and laughing. He didn't expect that Hongqi Company would do this.

However, it is also understandable when you think about it. Since the official launch of the King Long battery, domestic car sales have dropped by ten percent in just one month, and Tesla and other electric car brands have even cut in half.

Many people who are planning to buy a car are waiting and watching, waiting for the appearance of the King Long battery car, so that they can buy it as soon as possible.

Therefore, major car companies are trying to establish a good relationship with King Long Group, hoping to become one of the first manufacturers to launch King Long battery cars.

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

As for the other shortlisted manufacturers, they are mainly domestic brands, such as Geely, Roewe, BYD, and NIO.

Tesla, Volkswagen, Toyota, Mercedes-Benz, BMW and other brands, due to export control reasons, can only enter the second batch of authorized lists after China completes negotiations with other countries and reaches an export agreement for King Long batteries.

From this point of view, it seems no big deal for Hongqi to order a car specially for him.

After getting into the car, the engine started silently. Soon, Hongqi L5 left the villa area under the escort of two other Hongqi N501s.

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

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

However, this is also understandable. The strategic significance of Jinlong Battery is too great, and he has just woken up from a coma. It is conceivable that the country attaches great importance to his personal safety.

It was already ten o'clock in the morning when we arrived at the Carbon Nano Research Center.

Xu Xincheng, president of Jiangda University, Xu Xingguo, dean of the School of Materials Engineering, Li Changqing, deputy director of the Carbon Nano Research Center, Wan Yi, deputy leader of the high-performance carbon nanotube fiber material (flying edge material) project team, and others have been waiting for a long time.

"Academician Pang, I heard from Lao Xu that your high-performance carbon nanotube fiber material project team is going to officially start the feeding experiment today. If you don't mind me coming over to take a look."

Xu Xincheng said with a smile.

For Pang Xuelin, Xu Xincheng is full of confidence now. He can make such a big noise about the lithium-air battery project that no one was optimistic about before. What about the high-performance carbon nanotube fiber material project that has been in preparation for a year?

You must know that Jiang University also invested a lot of money in this project.

If he can really produce high-performance carbon nanotube fibers in theory, even a layman like him will understand what it means.

This will be the strongest super material in the world.

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

More importantly, according to Wanyi and the others, what they need to do is to perform high-density macro-preparation.

In other words, it has the capability of quasi-industrialized mass production.

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

And to a certain extent, if this material is successful again, then in the field of carbon nanomaterials, Jiang University will have another discipline that will secure its position as the world's number one.

We must know that in the past two years, with Pang Xuelin's great success in Jiangda, he has cultivated and attracted a large number of talents to join.

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

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

As long as Pang Xuelin stays at Jiangda and this momentum continues, Xu Xincheng has full confidence in developing Jiangda into a Chinese version of MIT.

Naturally, Pang Xuelin didn't know what Xu Xincheng was thinking, so he smiled and said, "Of course I don't mind."

Then, he exchanged a few words with Xu Xingguo, Li Changqing, and Wan Yi, and then went directly to the experimental center where the Feiren material 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 location of the Institute of Nanomaterials of the School of Materials Engineering. Later, after the completion of the new experimental building, the Institute of Nanomaterials moved to the new experimental building. requisitioned.

Entering the experimental hall, the first thing that catches everyone's eyes is a huge ring-shaped reaction black box. This ring-shaped structure is more than 20 meters in diameter, and the diameter of the reaction black box is more than one meter. It is a thin opening about the size of a human hair.

"Academician Pang, is this the outlet of the flying blade material you mentioned?"

Pang Xuelin nodded with a smile, and said: "Single-walled carbon nanotubes with a meter-scale length are only about 10 nanometers in diameter. The single-walled carbon nanotube fibers we are going to prepare today will consist of 500 meter-scale single-walled carbon nanotubes. , It is estimated that the diameter will reach 4-5 microns, which is comparable to a hair. If all goes well, we will also prepare a flying blade material with a length of kilometers in the future. It is even possible to weave carbon nanotubes to create super tough and rigid carbon nanotube structured materials."

Xu Xincheng smiled and said, "Okay, then we won't waste time, how about we start now?"

"good!"

Pang Xuelin nodded and led everyone to the control center.

The control center was already crowded with members of the project team. Pang Xuelin shook hands with these people one by one. After saying hard work, he announced the official start of the first preparation of the flying blade material project.

Along with the start-up of the machine, humming and roaring sounds can be felt even in the hall of the control center.

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

According to the calculations of the project team, only about one centimeter of fiber can be grown per hour. It takes at least four to five days to truly complete the preparation of meter-scale carbon nanotube fibers. Considering factors such as machine downtime, it takes at least Wait until a week later.

What Pang Xuelin and the others are going to do today is just a trial operation. They only need to prepare some centimeter-length samples. After testing, they will confirm that there is no problem before allowing the reaction black box to enter the stage of large-scale full-power preparation.

The announcement of the start of the preparation happened to be during the lunch period, but no one wanted to leave the control center, and the lunch was delivered by the cafeteria staff, and they were dealt with casually.

At 2:00 p.m., the first 2.8 cm-long carbon nanofiber sample rolled off the production line, and then the project team members sent it directly to the electron microscope center for testing.

At five o'clock in the afternoon, the first batch of scanning electron microscope photos with a resolution of 3.5 nanometers and the analysis report of the sample appeared in front of Pang Xuelin.

Wan Yi, Li Changqing, Xu Xingguo, Xu Xincheng and the others also came together one by one.

What appeared in front of Pang Xuelin and the others was a collection of tubes arranged in one piece.

[Figure 1 shows the neat arrangement of tubes under the graphite substrate, showing that the growth direction of single-walled carbon nanotubes is consistent in one direction, which is consistent with the expected results. Figure 2 is the electron diffraction spectrum of single-walled carbon nanotubes. In the figure, the 000l type diffraction point is very strong, because the plane family on the two walls parallel to the incident electron beam in the positive space just satisfies the band axis law. On the contrary, the intensity of the hk0-type point is much weaker than that of the 1010-type point in the figure. In addition, the spots except the 000l type have obvious stripes, the direction is perpendicular to the tube axis, and the intensity decreases from the hk0 circle outward. Moreover, these spots are arranged in a hexagonal shape, which can be attributed to the planar hexagonal structure of carbon rings. If you observe carefully, you can see that there are satellite points symmetrically distributed on both sides of these indicating points, and they are located on a circle whose radius is the sum of the reciprocal vector lengths. This kind of satellite point is generated from the spiral structure in the 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 interlayer spacing of some layers is not the same. The asymmetry of the projection plane reflects that the tube body of the carbon nanotube is not a standard circular tube structure, and its cross section may have a polygonal tangent structure. For the asymmetrical situation in Figure 3, it can be explained in Figure 4B. The values ​​of d on the left and h on the right are different. When Figure 4 is rotated 90 degrees, symmetrical stripes will appear on the left and right sides]

...

After reading the SEM report, Pang Xuelin handed it to Wan Yi who was next to him. After Wan Yi finished reading it, he handed it to Li Changqing.

Then this report was passed on among the project team members one by one, and finally passed to Xu Xincheng.

"Academician Pang, how are you doing?"

Xu Xincheng is not an expert in the field of carbon nanotubes, so he can only take a rough look, but judging from the expressions on everyone's faces, he can tell that the performance of this sample is very good.

Pang Xuelin smiled and said: "If we usually prepare a large amount of large-scale single-walled carbon nanotubes, their orientations are generally random. These single-walled carbon nanotubes with consistent orientations have already shown that our experiment is 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. Excluding the four-hour downtime for maintenance every day, the rest of the time has been kept running for five days. It can reach one meter. Let's see how long the single-walled carbon nanotubes can be prepared in the end."

Wan Yi on the side also nodded and smiled: "Anyway, I am very confident. As long as this equipment can continue to operate stably for more than a month, it means that Professor Pang's overall plan is completely feasible. Next, we can completely use this equipment. On the basis of upgrading, speed up the synthesis of single-walled carbon nanotube fibers."

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

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