The top student must be diligent.

Chapter 260 Incompatibility Issues

Although Xiao Yi could start the research at any time, Wang Changhong later told him that the research was conducted in another material research institute affiliated with the military, near Jinling. After all, Jinling was the base of the Eastern Theater Command, so there would naturally be some research institutes nearby.

But it is obviously impossible for Xiao Yi to stay in the research institute all the time. After all, he still has to attend classes at school, and as the director of the Science Island Laboratory, he also has a lot of things of his own to do. In addition, there is his current position as the chief consultant of the National Fusion Corporation. Sometimes the company will have some technical inquiries, and he may need to visit the site occasionally.

Not to mention, now, his three students are about to graduate, and he, as a teacher, must of course keep an eye on them before they graduate.

So, in the end, Xiao Yi decided to go to the research institute first to at least know what kind of materials they need now, and then see the research progress, and finally think carefully about how to help them solve the problem.

In aircraft engines, material compatibility is indeed a very important performance.

Material compatibility refers to whether harmful physical or chemical reactions will occur when different materials coexist in a specific environment, whether they will lead to reduced material performance or structural damage. It reflects whether each material in the entire material system can effectively exert its own stability and reliability.

This problem exists in various projects, including building a house, and the compatibility of the materials used in the house must also be considered. Of course, in modern projects, these materials have already had systematic conclusions, so you can just use them.

However, for a project like the H-20, more detailed considerations are bound to be required in this regard.

As a new strategic bomber of the 21st century, the performance of the H- must demonstrate its latecomer advantage.

For example, the US B2 bomber has a strong stealth capability, but its speed is average. The Russian Tu-160 is very fast, with the fastest speed reaching Mach 2.05, but it has completely given up its stealth capability.

Therefore, the H-20 has both stealth capability and supersonic cruise capability, which makes it truly all-rounder.

It's just...

For Xiao Yi now, the compatibility issue seems to be quite easy to solve.

……

After leaving the Science Island Laboratory and getting in the car, they headed straight to Jinling.

Liu Cong rides in the same car with his secretary and driver. As the director of the National Science and Technology Bureau, he of course has a full-time secretary and a full-time driver, and the car he drives is also an A6.

Then came Wang Changhong and his group who drove over from Jinling. They drove a military vehicle, and the driver was also a soldier.

Xiao Yi took Wang Li and got on his tram.

As for Luo Mingya, she also got into his car. It wasn't that she didn't want to sit with Wang Changhong and Li Zhenhai, but when she wanted to sit, Wang Changhong and the others pushed her out and asked her to sit with Xiao Yi, as they were two young people.

Xiao Yi didn't care, but Luo Mingya felt a little helpless. She always felt that there seemed to be some encouragement in the eyes of Chief Engineer Wang and Team Leader Li?
Just sit down.

After getting in the car, Luo Mingya was surprised by the interior of the car and the thick door when she opened it just now.

"Why is your car a little different from the Diabyhuas I usually see?"

She asked rather puzzledly.

Xiao Yi smiled and said calmly: "This was given to me by Diaby. It was custom-made. It is indeed a little different."

His electric car is Diaby's latest flagship model, named "Hua", and is a new model following the major dynasty models.

It is equipped with a brand-new lithium-sulfur solid-state battery. When fully charged, it has a range of 2500 kilometers, which directly matches the range of its previous hybrid models. Moreover, compared with the emission problems that still exist in hybrid vehicles, such pure electric vehicles have no emission problems at all.

Of course, [Hua] is also the world's first lithium-sulfur solid-state battery car, and its starting price is relatively high. The starting price of the lowest configuration is 49.99 yuan, and the high-end configuration will be higher.

But even so, this car has already sold out.

As for Xiao Yi's car, it was given to him by Diaby when he first launched this new model. It is even more advanced than the highest-end car on the market and was specially made.

Apart from the fact that it looks no different from the [Hua] in appearance, the materials used throughout its body are of the highest quality and naturally it also has bulletproof properties.

I heard that when building this car, Diaby also invited experts in military bulletproof vehicles to provide guidance.

The car doors alone are nearly three times thicker than ordinary car doors, and the windows are naturally thickened as well.

The defense capability can be said to be basically maximized, and the power is also customized. The maximum speed can reach 280. As a bulletproof electric car, this speed is already quite fast.

In addition, there are quite a lot of other black technologies.

As for the interior, there is naturally no need to say much, it even has a starry sky ceiling.

All in all, this is a super luxury car that only looks like a [Hua] in appearance, and its overall cost is no less than tens of millions.

Hearing Xiao Yi's words, Luo Mingya blinked, and then said with emotion: "As expected of our Chief Engineer Xiao! A man richer than Musk."

Xiao Yi laughed for a moment and said, "Why are you starting to say such things? You're not like the female bully from the School of Materials Science back then."

Luo Mingya rolled her eyes and said unhappily, "Don't slander me. Don't mention what happened back then again."

Xiao Yi smiled and nodded.

Then, he added: "However, I didn't expect that you were conducting research in the H-20 project."

Luo Mingya smiled and said, "I didn't expect that nuclear fusion would come out before the H-20."

Xiao Yi said: "Do you still remember the bet we made?"

"Of course I remember." Luo Mingya shrugged: "But I can't leave now, unless you can dig me out from Chief Engineer Wang and Team Leader Li."

"Chief Engineer Wang is so optimistic about you?" Xiao Yi raised his eyebrows. After hearing what Luo Mingya said, could it be that the face of Chief Engineer Xiao was not enough to poach a researcher who was not the head of the research group?
Luo Mingya said: "Chief Engineer Wang has a good relationship with my grandfather. I once studied with Team Leader Li for a period of time. He is my teacher. Now I am a researcher in the turbine blade material group. I have previously proposed a plan to optimize the surface consistency of the blade material. Therefore, I am probably also involved in the issue of material compatibility."

Xiao Yi raised his eyebrows and smiled: "It seems that the female bully is an important person wherever she goes."

"I told you not to mention it again." Luo Mingya said unhappily, "Besides, now that Chief Engineer Xiao is here, even the most important person will seem unimportant, right?"

Xiao Yi laughed: "I'm not here to fight for power and profit."

Luo Mingya chuckled: "That's true."

After that, there was silence in the car for a moment.

There is no noise coming from outside. The car has a very strong noise-reducing effect. The body material is thick enough to prevent any sound from coming in. Of course, some horn sounds outside the car can be collected through an external high-sensitivity microphone and transmitted to the speakers inside the car or the driver's headphones, thus ensuring that the driver will not lose judgment on some external situations due to inability to hear external sounds.

At this time, Wang Li, who was in charge of driving, was wearing headphones.

However, he would occasionally glance at the two people in the back row through the rearview mirror. Although there was a partition window design, Xiao Yi had never used it.

This bodyguard who was sent here, in addition to protecting Xiao Yi, also checks all the people who get close to Xiao Yi. Of course, he is not checking Luo Mingya now, after all, she is a researcher who can participate in the H-20 project, and she may have been checked long ago.

He just thought of a more secretive mission he had undertaken before, which was to see if there were any women around Chief Engineer Xiao who were trying to get close to him, as well as some women who were close to him.

There are naturally quite a lot of the former. Xiao Yi is single and unmarried. He has great talent and wealth, so naturally there are quite a lot of women who want to get close to him.

Fortunately, they don't have to worry too much about this kind of women. Their Chief Engineer Xiao can do everything he can to push these women away and make them give up the idea.

As for the latter, to be honest, Wang Li has rarely seen women of the same age who have a close relationship with Xiao Yi.

This woman, Luo Mingya, was indeed the only woman of the same age he had met in such a long time, with whom Xiao Yi could talk a lot.

Could it be that the thing that the higher-ups have been worried about has now been resolved?

For a great scientist like Xiao Yi, his marriage issues are still of great concern.

Once you are in a high position, marriage, which is originally a private matter, will become something that others cannot help but care about.

The leaders naturally hope that Chief Engineer Xiao can settle down in China as soon as possible and find a Chinese wife. This will give him something to worry about and make his life more stable.

However, the leader also hopes that Chief Engineer Xiao can find a good wife so that the family will not eventually bring some negative influence to Chief Engineer Xiao.

Therefore, regarding this matter, the leaders reminded Wang Li to pay close attention to it in normal times.

But now it seems that this woman named Luo is very suitable.

"Hmm...it looks like it has been found."

Wang Li grinned and continued to concentrate on driving.

At this time, Xiao Yi spoke again: "By the way, take advantage of this time to tell me about the problems you encountered."

Luo Mingya nodded and then began to speak.

"Because the H-20 is a stealth strategic bomber, and in order to ensure that it has strong enough stealth capabilities, all designs need to be compatible with its stealth capabilities."

"However, the thermal expansion coefficient of the new titanium-aluminum alloy blade material we have developed does not match that of the materials of other engine components..."

As Luo Mingya gradually explained, Xiao Yi finally understood where the problem they were facing was.

The coefficient of thermal expansion refers to the physical quantity used to measure the degree of thermal expansion of solid materials. It indicates the relative change in length or volume of an object per unit length or unit volume when the temperature rises by 1 degree Celsius.

However, in the high-temperature working environment of aircraft engines, the problem encountered by Luo Mingya and his colleagues is that the expansion amplitude of the new material blades is greater than that of other parts of the material, resulting in a reduction in the gap between the blades and components such as the casing, and even interference friction, which affects the normal operation of the engine and increases the risk of failure.

Although they have gone through a lot of adjustments, they are still unable to reach a level that satisfies them.

After all, turbine blades have a significant impact on the performance of aircraft engines.

As the saying goes, aircraft engines are the crown of human industrial history, and turbine blades are the jewels in the crown.

Once the ingredients are changed, it will more or less affect quite a lot of other properties.

In addition to this problem, the creep performance of the new material at high temperature is more or less incompatible with other materials.

They were reluctant to completely change their thinking about the new blade material. First, it would be a waste of time, energy and cost. Second, the performance of the new material was so strong that they were reluctant to do so.

So now they are stuck here, but originally they are not in a hurry. After all, they have plenty of time to decide on a plan, and there is no time limit for their task.

But who would have thought that nuclear fusion technology would suddenly emerge and have a significant impact on the international situation.

So, in order to untie the bell, they had to find the person who tied it. They found Xiao Yi, who had developed nuclear fusion and indirectly changed the international situation.

Xiao Yi felt helpless after hearing this.

So, this matter is still due to the nuclear fusion he invented?
……

Time passed quickly.

Fei City and Jinling are the nearest provincial capitals in China. In addition, they are located in the plain area of ​​the Yangtze River Delta, with a flat terrain and convenient transportation, so it only takes about two hours to drive there.

Finally, after going around in circles, the car stopped in front of a large courtyard near Zijin Mountain.

This compound looks quite old, but the fact that it was built in Zijin Mountain shows that it is not simple. As for the white sign at the door and the soldiers standing guard, there is no need to say more.

Luo Mingya and his research institute are located here. From the outside, it is hard to imagine that this was once a confidential research institute.

"finally reached."

After verifying his identity, he entered the compound.

After getting off the car, Luo Mingya stretched her body. She was a little tired after talking with Xiao Yi for a long time about their research progress.

Xiao Yi talked to Wang Li for a few words and then got out of the car.

Wang Changhong and others also came over.

As for Director Liu, he had other things to do in Jinling, so he separated from them after entering Jinling.

Then, under the leadership of Wang Changhong, Xiao Yi came to the research institute.

At this point, he had realized how strict the internal security of a truly confidential research institute was. To enter the core area, he not only had to swipe his work badge, but also had to do iris verification.

In contrast, in their Science Island Laboratory, the most they have to do is swipe a work badge.

Of course, the nature of the two is different after all, so there is no need to compare them.

However, Xiao Yi couldn't help but think with evil humor in his heart, at least the Science Island Laboratory sounded safer. What if some super agents wanted to break in? Wouldn't they have to remove the eyeballs of an unlucky researcher first to obtain iris verification?
"Let's take Chief Xiao to record his iris first."

At this moment, Wang Changhong said to the person next to him.

The evil thoughts in Xiao Yi's heart suddenly vanished.

(End of this chapter)