The Red Era, the Opening University Speech

Chapter 478: Imitation? We developed it ourselves!

Li Mu said:
"The first thing to do is to choose the material for the ceramic layer. I would recommend yttria-stabilized zirconia."

"Of course, lanthanum oxide zirconate, gadolinium oxide zirconate, etc. will also work."

"It mainly has to meet six requirements: low thermal conductivity, high melting point, matching thermal expansion coefficient, good thermal shock resistance, chemical stability and easy processing..."

After he finished his request.

He also explained in detail to Song Wencong why these six requirements were necessary.

Listen, listen.

One of them teaches seriously, and the other learns seriously.

Although there is a seven or eight year age difference between them, the scene was still very harmonious.

The only person who was not very harmonious was probably Guan Jianmin, who was standing nearby gritting his teeth.

From when Song Wencong asked for advice just now.

He felt something was not right.

Now I see that it is true.

Not only solved the problem, but also taught people.

It's okay to be angry.

He did not disturb the two of them.

I just prayed silently that Wang Ya would come back soon.

……

Perhaps Guan Jianmin's prayers worked.

About 10:.

Outside the door, there was a "click" sound of the key turning the lock.

He immediately stepped forward happily, intending to "complain".

However, after seeing Huang Xinhua beside Wang Ya.

His face suddenly turned dark.

It’s not over yet, right?

Just as he expected.

The first thing Huang Xinhua said when he came in was:

"Where is Li Mu?"

"Professor Huang, he is talking to Professor Song over there. Why don't you come back tomorrow?" Guan Jianmin took a deep breath and said.
Hear this.

Huang Xinhua said:

"It's okay, I'll just wait a moment."

As he said that, he followed Wang Ya into the living room.

Seeing that Li Muzheng and Song Wencong were so engrossed in their discussion that they did not notice his arrival.

He didn't bother either.

Instead, he went to the study and sat for a while.

Seeing this, Guan Jianmin slapped his forehead and cried out inwardly:

“This job is so difficult!”

……

The night is getting darker.

As the pen in Song Wencong's hand stopped writing.

The guidance has come to a temporary end.

Not that all the problems have been solved.

But he remembered that when he came, Wu Youxiang specifically told him to pay attention to the time.

So I feel a little bit sorry about it.

He still said:

"Advisor Li, it's getting late. Let's talk about the remaining questions tomorrow. I'll be leaving now."

"It's okay..." Li Mu waved his hand.

I was just about to say you go first.

Out of the corner of my eye, I noticed Wang Ya and Huang Xinhua standing behind me.

He raised his watch and looked at the time. It was already 11 o'clock.

Seeing this, he turned and said:

"Okay, let's talk about it tomorrow."

After saying that, Li Mu turned around and prepared to ask Guan Jianmin to send Song Wencong off.

at this time.

He saw Huang Xinhua coming out of the study.

"Professor Huang, when did you come?" Li Mu asked in surprise.

Hearing this, Huang Xinhua smiled and said:

"I've been here for a while, and since I saw you guys were having a serious discussion, I didn't bother you."

“It’s not really anything important.”

"I'll go back first and talk to you tomorrow."

After he finished speaking, he planned to leave with Song Wencong.

"Since you are here, it must be something extraordinary. How about we just talk about it briefly?" Li Mu said.

He stopped the man.

While looking at Wang Ya next to him.

Seeing this, Wang Ya said:

"I'll go cook some noodles for you. Professor Song, you should eat something before you leave."

After saying that, she walked into the kitchen.

"Okay, let's talk for half an hour." Huang Xinhua nodded.

He was originally worried that it was too late and would disturb Li Mu and Wang Ya's rest.

Since both of them have no objection.

Then of course he was happy to do so.

……

Immediately, Li Mu brought Huang Xinhua to the study.

After sitting down.

The latter immediately said:

"I came here this time mainly to tell you some good news. The improvement work on chemically amplified photoresist has been basically completed."

"Through improvements in resin system, photoacid generator, additives and process conditions,"

"The resolution, sensitivity, etching resistance and environmental friendliness of photoresists have been greatly improved, meeting the needs of higher integrated circuit manufacturing..."

He slowly told Li Mu about his research results over this period of time.

Of course, it's not just about photoresist.

Light source technology, optical systems, mask technology, and mechanical and control systems have all made considerable progress.

According to Huang Xinhua's personal estimate.

It is expected that within the next 1-2 months, integrated circuits with an integration level exceeding 40w will be able to be produced.

It doesn't sound like much of an improvement.

But be aware.

The integration level of the first 32-bit microprocessor was only 27.5W.

"That's great!" Li Mu couldn't help but sigh.

The realization of 32-bit microprocessors is of great significance to the development of computers.

simply put.

It can support up to 4GB of memory addressing, far exceeding the 16kb limit of 64-bit processors, providing a foundation for running more complex operating systems and applications.

Huang Xinhua smiled and said:
"I know what you're thinking, but this is just a breakthrough in integration. It's still a long way from being a processor."

"Besides, we haven't even developed a 16-bit processor yet."

"You don't know, I went to the Institute of Computing Technology before, and the group of people there worked so hard that their hair fell out."

Although he focuses on semiconductor research.

But it's not that we don't know the value of microprocessors, but the difficulty.

"Don't worry, the key is that the level of integration meets the requirements, and many things can be improved. For example, supercomputers." Li Mu said with a smile.

32-bit microprocessors are important.

But supercomputers are equally capable.

The second-generation supercomputer's computing speed of 100 billion times per second is very good.

But computing speed is never too high.

The reason why we didn’t upgrade before was because an increase of one or two billion was meaningless.

However, this time the 40w integration is enough to increase the computing speed to 500 billion times per second or more, which is definitely very cost-effective.

Huang Xinhua said:

"You are planning to build a third-generation supercomputer. Isn't it too early?"

"In fact, the second-generation supercomputers are now sufficient to handle all research tasks."

"It's a bit of a waste to spend tens of millions to build it. Why don't we wait for another year of research and break through 1 million integration points before we decide?"

He did not doubt Li Mu's judgment.

I just think it's a bit of a waste.

After all, since the second generation of supercomputers came out.

The problem of insufficient computing power for computing tasks in all research institutes across the country has been solved.

"It won't cost tens of millions. We just need to upgrade the chips. The total cost should be less than 500 million yuan, but the value it generates will be ten or a hundred times more," Li Mu explained.

He naturally would not forget the current financial difficulties faced by the Xia Kingdom.

But he believed it.

The value of a 500 billion-times supercomputer is definitely worth its 500 million yuan cost.

Huang Xinhua nodded immediately and said:

"Since you are so confident, I will discuss this with the director when I return. Once we achieve a breakthrough in integration, we will immediately launch a research project."

If the return is ten times or a hundred times.

Then there is no need to consider it at all.

Just do it and it's done.

Seeing Huang Xinhua agreed, Li Mu smiled and said:
"By the way, I recently thought of a technology that might help break through the unreasonable resolution limitations of photolithography technology."

"Oh, what kind of technology is that?" Huang Xinhua immediately became itchy.

Li Mu said:
“How about breaking down the pattern of a single lithography layer into multiple sub-patterns through multiple lithography and etching steps, and finally combining them into a high-density, high-resolution pattern?”

Hear his story.

Huang Xinhua fell into long contemplation.

Soon, he figured out the key point, his eyes lit up, and he said:
"It's amazing. By using multiple patterning, we can achieve smaller feature sizes than single-shot lithography."

“But the process of multiple photolithography and etching is very complicated.”

"Moreover, complicated steps are prone to defects."

The method is a good one.

But there are also problems.

Li Mu said:
"That's easy. First, we can improve the overlay accuracy and optimize the development and etching processes..."

……

In the study room.

Li Mu and Huang Xinhua became more and more excited as they talked.

It was agreed to be half an hour.

The two chatted for 2 hours and neither showed any sign of stopping.

See this.

Guan Jianmin finally couldn't hold back any longer and was ready to step forward to remind him.

But Wang Ya was faster.

She stood at the door of the study, holding two bowls of cooked noodles.

He didn't say anything, just looked at the two people inside.

It seemed like something was happening.

Li Mu turned his head suddenly and saw Wang Ya.

He stood up quickly and said:

"Professor Huang, let's stop here today."

"Xiao Ya has already cooked the noodles. Eat something and then go back to rest."

"We'll continue when we go to the Semiconductor Research Institute tomorrow."

……

The next day, early.

Li Mu woke up on time.

Wash up after exercise.

He began to tinker with the design of 32-bit microprocessors and upgrade plans for supercomputing chips in his study.

From 16-bit microprocessors to 32-bit microprocessors.

It is a major leap forward in computer architecture design.

The progress is not only reflected in the increase of data bit width.

It also involves improvements in instruction set architecture, memory management, performance optimization, and functionality expansion.

Take instruction set architecture as an example.

The instruction set of a 16-bit microprocessor is relatively simple and can only support basic arithmetic, logic, data transfer and control instructions.

The addressing modes are also very limited, usually only direct addressing and register indirect addressing.

The 32-bit microprocessor supports more advanced instructions, such as multiplication and division, bit operations, and string processing.

And more addressing modes are introduced to improve programming flexibility.

……

It took an hour.

Li Mu drew up the frameworks of two plans.

then.

He then turned his attention back to the engine of the Weilong-1.

The first two still need to wait for a breakthrough in integration, so there is no need to rush.

But the latter is something that must be resolved as soon as possible.

"How about using the WS-10 engine developed by Xiaguo itself?" Li Mu thought secretly.

The J-10 fighter jet initially used the AL-31F engine of its big brother.

Later, they switched to the independently developed WS-10.

A comprehensive comparison of the two.

AL-31FN excels in thrust and reliability and is more suitable for high-performance fighter jets.

WS-10 has the advantage of being a latecomer in technology, but its maturity still needs time to be verified.

This is also the reason why Li Mu chose the former before.

"Forget it. The development difficulty of WS-10 may be higher than that of AL-31FN. There are too many technical difficulties in developing something completely independently." Li Mu rejected the idea.

Even if Ask ran to Rongcheng again.

He felt that it was too difficult.

Independent research and development is not impossible.

But if the cost is too high, it would not be worth it.

It is more cost-effective to develop AL-31FN now.

……

Around 11 o'clock.

Li Mu left home and went to the Semiconductor Research Institute.

After arriving at the place.

He immediately found Huang, Song Wencong and others.

Saw him coming.

Everyone who was discussing in the conference room immediately came forward and said:
"Advisor Li, you finally have time to come here."

"Yes, we have many questions for you."

"I think the method you mentioned yesterday of using thermal barrier coating to improve the high temperature resistance of turbines and increase the thrust-to-weight ratio is..."

The group exchanged simple greetings.

He immediately started asking questions.

First, there is the issue of high-temperature materials and cooling technology.

Huang Qianqian said:

"The temperature before the turbine is as high as 1427 degrees Celsius, far exceeding the temperature resistance limit of traditional materials. Once the temperature is too high, the components will fail."

Hear the questions.

Li Mu pondered for a moment.

Then he said:
"Air film cooling and internal cooling channel design can be used to reduce blade temperature."

"Film cooling is a technology that reduces the temperature by forming a cooling film of air on the surface of high-temperature components."

"Its principle is very simple. Cooling air is drawn from the compressor and sprayed onto the surface of the high-temperature components through small holes or gaps..."

He slowly explained his solution.

Huang Qianqian and others hurriedly wrote down what Li Mu said with pen and paper.

……

After talking about issues related to high-temperature materials and cooling technology.

Soon, Tu Jida asked the second question.

——Compressor surge and stall.

When the compressor is under high load or non-design operating conditions, surge or stall is likely to occur, resulting in reduced engine performance or even damage.

So, how to ensure stable operation of the compressor under high compression ratio.

And improve surge margin to adapt to the complex flight conditions of fighter jets.

It's quite a challenge.

However, the method given by Li Mu is also very simple.

By designing a multi-stage compressor and compressing the air stage by stage, the load on the single-stage compressor can be reduced.

Of course, there are also difficult ones.

That is the adjustable stator blade technology.

This is a key design in the high-pressure compressor of an aircraft engine, used to optimize the performance of the compressor under different operating conditions, especially to prevent surge and stall.

Its basic concept.

It uses the stator blades fixed in the compressor to adjust the direction of the airflow so that it enters the next rotor blade at the best angle.

……

I was busy until around 3pm.

Li Mucai solved all the problems that Huang Qian and others had.

In addition to the previous 3 questions.

There are also issues such as turbine and compressor matching, control systems, durability and reliability, and fuel economy.

Wait for him to stop analyzing.

I just felt dry mouth, so I quickly picked up the teacup next to me and took a big gulp of warm water.

Seeing this, Huang Qianqian said:
"Thank you for your hard work, Consultant Li. If it weren't for you, we would have to rack our brains to figure out these problems."

As soon as he spoke.

The rest of the experts and professors also nodded in praise.

This talent and ability.

It is really amazing.

"It's just my personal idea. The specific work still needs everyone to do." Li Mu smiled and said.

There is no need to be humble at this time.

After all, we have been together for so long.

His words had long been seen through by everyone.

It’s a bit hypocritical to say things like “I’m not sure” or “It still needs to be verified”.

Huang Qianqian said:

"Don't worry, with this information and your help, we will strive to produce the core machine model before the end of the year!"

The voice just fell.

Tu Jida, Song Wencong and others nearby also gave Li Mu a guarantee.

Now it’s only one month away from the New Year.

It is extremely difficult to make a core machine model.

But they just have this confidence.

After all, every time after discussing with Li Mu, all problems can be solved easily.

"There's no need to be so anxious. It's better to be cautious. By the way, how is the development of other parts of the Wulong-1 fighter?" Li Mu said.

Huang Qianqian said:

"The fuselage, wings, tail, air intake, landing gear, and cockpit are all going relatively smoothly."

"But we encountered some trouble with the weapon mounting."

"Your plan calls for air-to-air missiles, air-to-ground missiles, bombs, rockets and other weapons, but we..."

He didn't finish his words.

But the meaning is clear.

——It can only be imitated.

Xiaguo is still at a relatively backward stage in the field of D-bombs.

The pylons and avionics systems used by the Wulong-1 fighter are truly very advanced.

The D-bomb model they have is incompatible with the Dragon-1 in terms of guidance method, interface and size.

Technically, it is almost completely unfeasible.

If forced modification is carried out, the cost and technical difficulty will be very high, so it is better to directly develop a new D bomb.

Facing everyone's gaze.

Li Mu quickly understood what they meant.

He immediately said:
"Then set up a project team to develop a new D-bomb!"

We need to develop a new D bomb.

It's easy to say.

It's not easy to do.

Take the standard configuration of the J-10 for example.

The air combat configuration is PL-10, PL-12, and auxiliary fuel tanks.

The ground attack configuration is PL-8, KD-88, Thunder-2, and electronic warfare pod.

Want to complete the most basic requirements.

They all need to develop at least 5 D bombs.

These include two close-range combat missiles, one medium-range air-to-air missile and one general-purpose air-to-ground missile.

It is difficult to rank the three in terms of development difficulty.

But one thing is still very clear.

That is a lack of people.

So many D-bombs are being developed.

The existing staff of the Aviation Academy is no longer enough.

Fortunately, this problem is not a big one.

There are not enough people in the Aviation Academy.

Then borrow it from Xiaguo Air-to-Air D Missile Research Institute.

After Li Mu, Huang Qianqian and others finished their discussion.

He went straight to Wu Youxiang and told him what he needed.

After hearing the news.

The latter did not hesitate and immediately rode his bicycle out of the institute to discuss the matter with Guo Mo.

……

Xiaguo Air-to-Air D Missile Research Institute.

Dean Liang Shoupan sat in his office, reviewing documents.

Looking at the research reports submitted by various departments recently.

His eyes were full of smiles.

Ever since the emergence of supercomputing and software engineering.

Their institute's work on the development of the D bomb was progressing like a rocket.

The PL-5, developed based on the K-1D missile of its big brother, and the PL-13, developed based on the K-2D missile, have both made good progress.

"But compared with the Chinese Academy of Sciences, it's still far behind!" Liang Shoupan suddenly sighed.

They have achieved good results in the Kongkong D bullet school.

But until now.

There is only one PL-1, which is almost ready to be used.

There is no comparison with the Chinese Academy of Sciences.

The results there are coming one after another.

As for why he knew?
It's very simple, you can see the clues from the personnel transfers.

He didn't know about other places.

Just their hospital.

Many key personnel were transferred away during this period.

"I don't know what they are tinkering with. Fortunately, not many people are borrowing it, otherwise our research will be affected." Liang Shoupan said secretly.

It's all for research though.

But if all the people were borrowed away, he would still be angry.

Just when he was thinking this.

A young figure suddenly walked in from outside and reported:
"Dean, with the help of supercomputers, we have basically completed the analysis of the AIM-9BD missile wreckage at Site M."

"According to Professor Chen's calculations, we will be able to start replicating the product in a week."

"If everything goes well, we can produce a replica of the D-bomb in a year!"

Looking at the young man in front of me who was reporting to me excitedly.

Liang Shoupan's smile deepened, he stepped forward and said:
"Well done, keep it up, our Kongkong D-Damage Academy depends on young people like you to support it!"

Xiaguo's Air-to-Air Missile Academy was only established in 61, and its foundation is still very weak.

The current backbone of the research is only himself, as well as Chen Yijian, Tu Shoue, Xie Guangxuan and others.

Of course, there is also Huang Ruisong in front of us.

Although he is only 25 years old.

But the talent is really good and it is worth cultivating.

"Dean, I still have a lot to learn, and I still have to rely on you." Huang Ruisong said modestly.

Hearing this, Liang Shoupan smiled even more happily.

Just when he was about to encourage the young man a few more words.

Suddenly, two people walked in at the door.

These two people are Guo Mo and Wu Youxiang.

The former did not wait for Liang Shoupan and Huang Ruisong to react.

He slapped a red-headed document on the table and said:

"President Liang, we need to mobilize 50 key researchers from your institute to take charge of a secret research mission."

Hear this.

Liang Shoupan was completely confused.

What? Are you really going to borrow all the people away?
Don’t they want to study it?
Thinking of this, he immediately said:
"President Guo, I'm afraid this isn't appropriate. We also have an important prototype mission right now, so we can only give you 10 people at most."

Absolute rejection is definitely not an option.

After all, the documents have been sent out.

Moreover, he just took a glance and found that the signature on it was Qin Yun!

Guo Mo shook his head and said:
"Ten is not enough, it's too few."

"President Liang, I'm telling you the truth."

"If Leader Qin Yun hadn't agreed, I would have wanted to borrow you as well."

Liang Shoupan is quite authoritative in the field of air-to-air D missiles in Xia Country.

It would be inappropriate to pack up the dean and take him away as well.

He certainly did.

"Even I want it. What kind of research is this?" Liang Shoupan suddenly calmed down and asked curiously.

50 people were transferred away at once.

They are all the backbone of their institute.

Such a big move is definitely not simple.

Guo Mo said:
"Well, I can't tell you. Only researchers know."

"But I can tell you, it's about the D-bomb."

"It is also very important to our country. All units and departments are required to cooperate unconditionally and strive to start research work as soon as possible."

His explanation made Liang Shoupan gasp.

Just as he was about to continue his indirect probing.

Huang Ruisong on the side suddenly said unconvincedly:
"President Guo, our institute also has important research on imitating the M-Emperor D-bomb."

"Imitation?" Guo Mo shook his head and said, "We developed it ourselves."

(End of this chapter)