Thanks to Chi Fengzhuo for his generous reward of 300 coins.

It was not until very late that Liu Yijiu explained what he learned clearly.

Whether it is a helicopter, fighter, or transport aircraft, for the Republic, the biggest limitation is not the design plan, but the issue of basic materials. A plane uses many kinds of materials, and although some materials are only used a little, this is very critical.

"The aluminum alloy used in aircraft is different from that used in rockets. After all, aircraft needs to be used repeatedly. This issue is discussed a long time ago. Although aviation aluminum materials such as 6061 and 7075 can be produced in China, this performance needs to be improved a lot. Moreover, these two materials can only be produced on small-scale laboratory in China..." Liu Yijiu is currently planning when to make the aviation aluminum materials that the Republic has spent a lot of effort to research.

However, there has never been a chance. Jia Yiming's current main attack direction is still on the high-temperature alloy used in the engine. This kind of thing, whether it is missiles or aviation, is used in the most critical part - the engine!

The engine is the heart. Without an advanced engine, everything is useless.

Liu Yijiu vaguely felt that the research areas under the base where Wang Shunyi took him by but refused to let him see should have research technology in this area.

The Ninth Academy Base itself has absolutely no research on nuclear weapons, so Liu Yijiu can be sure of this. This is a combat readiness reserve base, and the project it is engaged in should not have much to do with the strategic-level killing weapon. Whether the base reserves Dongfeng 5 and atomic bombs have not been confirmed.

Even the nuclear power plants inside were built by people outside, and many equipment were transported from outside.

Nuclear power plant is considered a construction project here.

The train was still very slow, and when they returned to the base again, it was already late at night after they left Rongcheng. Although it was very late, the design room was still brightly lit. When he was away, Yangshan and others were stepping up some process documents and conducting various gun experiments.

Liu Yijiu made a military order in this regard.

In order to make the research on multi-path missiles progress faster, Cao Zhijiang and Liang Qiang both lived and fed in the laboratory, and Jia Yiming never came out since entering the cave. He wanted to find the time he lost in these years.

"You kid, you haven't been sleeping in the middle of the night, why did you come here?" Jia Yiming lost weight a lot, his eyes were covered with bloodshot, his appearance looked haggard, but his spirit was in a state of excitement, and his face was extremely pale...

"Teacher Jia, how many days have you not been asleep? If this continues, you will probably be dragged down before you can get the high-temperature alloy formula improved..." Liu Yijiu regretted telling Jia Yiming about the aviation-specific high-temperature alloy formula.

These experts are the country's wealth.

Without them, it would definitely be very difficult for the country to go further in these aspects.

In the 1970s, the United States studied the use of new production processes to manufacture directional crystal blades and powder metallurgical turbine disks, and the progress is not very large. High-temperature alloy components such as single crystal blades are mainly to meet the needs of the continuous increase in the inlet temperature of aircraft engine turbines.

The Republic is difficult to produce even the most basic nickel-based high-temperature alloys, after all, this aspect was only started in the mid-1950s.

Director Yao Tongbin, the most top expert in this regard, was beaten to death again, and Premier Zhou dropped the teacup during the meeting. Anyone with a discerning eye could see how much the loss was.

Jia Yiming is another Yao Tongbin in the Republic, of course, this refers to the technical aspects.

Liu Yijiu hopes that he can produce some high-temperature alloy formulas from later generations and carry out large-scale production, so that no matter it is a rocket engine or an aviation engine, there will be a chance to increase research on this aspect. Only by drawing up suitable materials can the dilemma of the Republic's aviation industry be changed.

"It's okay, I can't sleep now. Xiao Liu, where did you get your information? According to the formula you provide, we have produced some materials for experiments. High temperature strength, antioxidant and thermal corrosion resistance, fatigue performance, fracture toughness, etc., which are more than 60% higher than what we used to use..." Jia Yiming didn't care how long he hadn't had a rest.

Researchers will never stop if they do not get the final result when they make breakthrough progress in their research.

I can't stop at all.

To put it in a popular sentence in the future, it means that the people on earth can no longer stop their enthusiasm for research...

"By the way, what's going on when you come here?" The recipes provided by Liu Yijiu were all very secretly proposed. For those who don't know how to do things, what he proposed is just some ideas and will not have any impact.

For experts like Jia Yiming, it is also a kind of idea, but they can improve their experiments based on these ideas.

It's equivalent to giving a point.

A flash of inspiration is very important for scientific research. The countless major breakthroughs in science and technology are all because of the flash of inspiration of some scientists! Jia Yiming is an expert in some of the ideas proposed by Liu Yijiu, so he can pay attention to them.

Now, there is finally a reward.

"It's okay, Jia Ling can't come in here, she asks me to persuade you..." Liu Yijiu hesitated for a moment, but still did not express her intention.

"Say less this, say if you have anything to do. Although we haven't been in contact for a long time, I still know you and I better understand you. Just for this, you won't run to me in the middle of the night..." Jia Yiming didn't believe that Liu Yijiu was just trying to persuade him to rest early.

"Really. I have been on a business trip to Rongcheng with Director Wang and others these days. I slept in the mountain city for one day during the day, but I can't sleep at night..." Liu Yijiu didn't believe it when she saw Jia Yiming, so she could only talk nonsense.

"Anyway, I can't sleep now, let's discuss it?" Liu Yijiu is not as simple as it seems. Although he doesn't know where his knowledge comes from, he also knows that it will definitely not be simply learned from a certain teacher.

If you can learn these from university teachers, all aspects of the Republic will be like this? You can completely mass-produce talents from all related aspects...

When Liu Yijiu heard this, he was immediately depressed.

All the things he knew about high-temperature alloys were almost dug by Jia Yiming. Now we have to discuss them again?

These things are enough to make people suspicious! I also talked about the fact that the old guys from the Academy of Sciences must grab and slice him!

"Teacher Jia, I don't know much about high-temperature alloys, really..."

"Stop talking, you don't know much, you know more than I have been doing it for decades. If it weren't for some of your suggestions, who would know how much time and cost it would take to achieve the current performance?" Jia Yiming immediately disagreed with Liu Yijiu's statement, "Xiao Liu, I know you don't care about reputation, but you have to consider the role of our making of these materials to promote the entire national defense industrial system! Do you want to see that the country continue to be bullied by the Soviet revisionists and the US imperialists because of its ineffective weapons and equipment? Our Republic has been bullied by imperialism for hundreds of years..."

When Liu Yijiu heard that Jia Yiming was going to teach him history politics again, he immediately became angry and quickly told him what he wanted and interrupted Jia Yiming to teach him history lessons.

"Teacher Jia, actually, the purpose of my visit is because I have some ideas about aviation aluminum alloy..." Liu Yijiu quickly explained some of his knowledge about aviation aluminum.

Aviation aluminum is another important material in the aviation aircraft industry. Most of the materials of aircraft are made of this kind of material with high strength and light weight. Otherwise, if an ordinary material is used, it will be scrapped due to material fatigue problems if the material is exhausted. The material is too heavy, even if the aircraft fly, it will not be very useful...

"Improving aviation aluminum? There is no problem with our current materials being used in missiles? Is it?" When Liu Yijiu said he wanted to improve the formula of aviation aluminum, Jia Yiming immediately thought of a possibility.

"Not necessarily, but we can prepare for this. On the way back, because they heard the current progress of the project of Zhi-6 and Zhi-7, and the fact that they have obtained a considerable amount of funds from the Chengdu Military Region this time, they want to do this..." Liu Yijiu told Jia Yiming about the situation.

No matter whether you have the ability to do this in the future or not, you can prepare in advance.

Materials are the key, and the development of any technical equipment is inseparable from advanced materials.

"Since it is not certain, we are starting to develop in this regard. Isn't it a bit inappropriate? Manpower and funding are all problems..." Jia Yiming said with a frown.

Liu Yijiu is not the manager of the base. Since he proposed this, Zheng Hao and the others would definitely agree. But in this way, studying these inappropriate materials is a bit waste.

"Materials are the foundation, and whether they can be used or not, they need to be studied. What's more, these aluminum alloys are not only used in the aviation industry, but also in the aerospace industry. If our missile shell uses aluminum alloy of the same weight with higher strength, we can install more efficient engines..." Liu Yijiu shook his head, not thinking that this was a waste.

As long as you have money, you must first invest in basic research.

Otherwise, when you need it later, if the most basic materials are not available, it will be useless.

"Have you ever tried this formula?" Jia Yiming did not ask where Liu Yijiu's recipes came from. Instead, he directly asked if he had tried them.
Chapter completed!