Nodded, Liu Feng knew the problems encountered by Professor Jiang Yang.

This kind of optical material, or optical absorbing material developed by Professor Jiang and others, is more appropriate.

The so-called optical wave absorbing material refers to a type of material that can absorb or significantly reduce the energy of electromagnetic waves projected on its surface, thereby reducing the interference of electromagnetic waves. It is widely used in new generation stealth weapons such as aircraft, ships, tanks, and various electronic diagnostic and treatment instruments and equipment such as hospitals and mobile phones.

In engineering applications, in addition to requiring the wave absorbing material to have a high absorption rate of electromagnetic waves in a wide frequency band, it is also required to have light weight, temperature resistance, humidity resistance, corrosion resistance and other properties.

Combined with the nature of Professor Jiang’s military industry experts, the wave absorbing materials they studied are likely to be used in weapons and equipment. Therefore, the design requirements here are naturally higher.

"Is it still not meeting the requirements in temperature adaptability?" Liu Feng asked with concern.

"That's right!" Professor Jiang replied in a chatty tone, "The design requirement of the new composite wave absorbing material is to maintain structural stability for at least 3 hours at a high temperature of 1,500 degrees Celsius... You must have guessed its use, but it is not a secret now. You should know that our new generation of fighter jets tested not long ago, right?"

"A new generation of fighter jets, are you talking about J-20?" Liu Feng said in surprise.

Although he once speculated about Professor Jiang Yang's purpose of researching wave absorbing materials, stealth weapons are definitely the most likely possibility, Liu Feng never expected that it would be used on the J-20?

Logically speaking, the J-20 has already tested the flight, and the invisible material it uses should be confirmed, but I didn't expect...

"Yes, it's the J-20," Professor Jiang said very proudly, but helplessly, "Now the whole world already knows the news of our new generation of stealth fighter jets in China's country's test flights, but they don't know which stealth method our fighter jets use! Because even our country is still in a quarrel about this..."

"What do you mean?" Liu Feng stretched his neck and did not realize that he was spying on military secrets. He was very curious.

Professor Jiang looked at Liu Feng and teased: "If it weren't for this incident, it was no longer a secret in the circle. Professor Liu, maybe you have been invited to have tea by someone from the Security Bureau!"

Then, regardless of Liu Feng's embarrassment, the old man smiled and continued: "The most important way of stealth in the fighter jet in the world today is nothing more than plasma stealth technology and anti-passive detection coating technology."

"For example, the F-117, B-2, F-22 and the latest F-35 in Country M mainly use anti-passive detection coating technology, because their conditions in this technology are very mature. The principle is to paint the entire aircraft with a layer of invisible material to absorb electromagnetic waves and reduce radar reflection."

"But our country is different. The technology accumulation in stealth material coating is not as good as that of the people of M. Not only does the invisible paint developed have poor results, but it also has restrictions on tolerance and service life. In addition, the price of this paint is even more unbearable. Therefore, there is another domestic call to work hard on plasma stealth technology."

"Compared with the widely used appearance and material stealth technologies such as B-2, F-117, F-22, etc. in M ​​Country, plasma stealth technology has a wide wave absorption frequency bandwidth, high absorption rate, good stealth effect, and is extremely simple to use and maintain. In addition, it has the advantages of long use and low price. It also does not need to change the aerodynamic shape design of aircraft and other equipment. It not only does not affect the flight performance of the aircraft, but also reduces flight resistance by more than 30%. Therefore, the call for this technology is very high!"

"And, the most important thing is that the probability of weapons being discovered can be reduced by 99% after using plasma stealth, and you can truly achieve 'full stealth'!"

Liu Feng was silenced: "Wouldn't that mean that this technology has a crushing advantage over invisible materials?"

Professor Jiang smiled slightly and said, "It can't be said that, because the disadvantages of this technology are also very obvious! For example, the parts of the weapon installed with the plasma generator cannot be invisible; the power supply required is very high, the equipment is huge; and it is difficult to control, etc. When meeting the requirements for the thickness of the plasma cladding, it is necessary to reduce the power supply of the plasma generator and reduce the volume of the equipment, which makes this technology hundreds of times more difficult than stealth coatings!"

"So, in a short period of time, I'm afraid it's impossible to overcome all these problems. However, when our stealth materials are not very useful, the prospects of this technology are naturally very good..."

"Oh, it's because we are not good at it, otherwise we would have determined the final stealth method of the plane! Although other guys who study stealth materials are not much better..."

Liu Feng thought about Professor Jiang’s sigh.

It seems that Professor Jiang is under a lot of pressure!

Not only are they facing competition from other technical routes, but they are not small in their own internal competition.

There is not only one kind of research on invisible materials. Whoever makes breakthrough progress first will have greater voice in the future!

This kind of healthy competition exists even wherever it is placed.

However, Liu Feng speculated that the final result of this matter is likely to be a combination of two methods. After all, the J-20 also has its own time requirements, and it is impossible to wait until the plasma stealth technology is fully mature before it is equipped.

"So do you have any new ideas recently?"

"Recently, we have obtained a method from the people of M. to add a lithium cadmium ferrite coating with a thickness of 2.5mm~5mm to the composite material coating. I heard that it can attenuate 8.5dB in the centimeter band and can withstand high temperatures above 1,500 degrees Celsius. Therefore, we plan to give it a try. As for more specific technical details, I am not convenient to say more, and signed a confidentiality agreement. If you are interested, you are welcome to join our team." Professor Jiang said with a smile.

"Forget it. Academician Cui would definitely not be happy if he saw me go fishing." Liu Feng also smiled, hesitated for a while, and said, "And, although I don't know how you got this method from the people of M, to be honest, I don't think this is a good idea."

After considering the words in his mind, Liu Feng continued: "Besides, if this method is really that feasible, it may not be so easy for us to get it in Country M!"

Although he paid considerable respect to those comrades in the dark, he could even get the things from M. It cannot be ruled out that this is a method that the M people use to cheat China. For those guys, Liu Feng has always used the most vicious thoughts to guess - there must be a secret that the cowboys can tell!

It is very likely that it is not reliable to be obtained by the "enemy country" so easily, and similar things have not happened before. For example, the Star Wars plan of M Country, manned moon landing plan, etc., are all good shows for spies and idle people.

Liu Feng doesn’t know whether this method is feasible at the moment, but he knows one thing: starting from his own calculation program, he can definitely develop high-end wave absorbing materials that far exceed the wave absorbing performance of this material!

To put it another way, the materials of the people of M have fallen behind and there is absolutely no future for development.

Because, he has already discovered several combinations of materials that can attenuate at least 10DB!

It's just 8.5dB, Liu Feng definitely doesn't like it anyway.

Professor Jiang shook his head and said, "We will use experiments to test whether it is feasible. It is not so easy for Chinese people in China to deceive us."

When Liu Feng heard Professor Jiang say this, he could only sigh softly.

It’s better to let them hit the wall, otherwise how could they show their ‘correctness’ next?

After all, he could no longer disclose more things, because the fixed procedures he developed were, to some extent, far more important than these absorbing materials!

Moreover, even if you continue to talk about it, no one will believe it, and it will easily offend people.

What's more, many things cannot be explained clearly at all, and a lot of experimental verification is required, so for the time being, they can only be downplayed.

Out of his past circumstances, he can only click on the reminder he can make.

However, he doesn't have to worry. When he announces his own procedures within a certain range, this kind of "low-level" wave absorbing material may not even be attracted by Professor Jiang himself!

At that time, the old man will naturally understand his good intentions.

...

Speaking of which, Liu Feng did not have a deep understanding of how profound influence the calculation programs he discovered and summarized could exert in materials science research.

But there is one thing he knows at least that these calculation programs can definitely change the research method of materials science such as room temperature superconducting materials.

At the very least, once the technical route bottleneck of limiting room temperature superconducting materials is broken, the entire relevant industry will benefit.

Whether it is antimatter engineering or controllable nuclear fusion tokamak device, with the solution of the problem of room temperature superconductivity, many problems will be solved, and things that were originally impossible to achieve are also possible.

Especially the use of renewable energy will greatly affect the energy utilization pattern in the existing world.

After all, the strong winds that only exist on the plateau and the sunlight that can last in the desert are far away from the human world. One of the biggest challenges facing these energy sources to transform into green energy is how to transport these electricity from remote places to cities across hundreds of kilometers of distances.

The most advanced room temperature superconducting cable can transport electrical energy for thousands of kilometers without any energy loss.

There is no doubt that the room-temperature superconducting materials will make the dream of global power supply come true. Through superconducting cables that cross the Mediterranean seabed, the sun in the Sahara Desert in Africa can power Western Europe.

However, after some communication with Professor Jiang, Liu Feng suddenly discovered that his new technology and new procedures could actually affect the research of the J-20, a country's heavy weapon. Going further, can other heavy weapons such as spacecraft, aircraft carrier, and nuclear submarines also benefit from it?

Although this will inevitably touch the interests of some people.

For example, in a laboratory that does these topics.

After all, a practical application of a room temperature superconducting material may be developed, and the most promising material research may be the most promising material research in related fields; but directly in the technical field of materials research, the theoretical rules of guiding nature may be eliminated, and the researcher who has invested hundreds of millions or even hundreds of billions of yuan in research projects, as well as the researchers who originally served this rice.

Especially for countries like China that have been behind the materials field for decades, with these procedures, they can catch up with the leading advantages accumulated over decades in a short period of time!

Doesn’t this mean that the blood and sweat that Europe and the United States have invested in these areas for decades have instantly become foolish-like coolies?

When it really comes to that moment, those people will have to vomit blood!

Of course, Liu Feng could not hesitate because of this little thing, and he was even absolutely gloating - the materials and patents that should be registered will be registered, and the procedural theories that should be published will be published.

If you have the ability, come and bite me?

And from another perspective, with his procedural theories, the social resources that were originally wasted on basic materials research will be transferred to other more promising scientific research projects with the further development of computational materials science.

For example, precision processing, such as material application.

The social resources here can refer to scientific research funds or researchers.

It is definitely not just materials science research that can benefit from it!

By then, even if the final result of the anti-matter project is unsatisfactory, the promise he promised to the Great Elders and others to improve part of the basic industry in China would have been perfectly realized.

Therefore, after returning to the dormitory, Liu Feng began to summarize and summarize these procedures and write them into papers so that others can verify them; of course, by the way, fill in patent applications for several materials - briefly explain what the patent he wants to register is and submit it to the person above for review.

However, out of caution, he did not brag too much about these calculation programs. He just used "several mini programs that could calculate the superconducting properties of materials", "several mini programs that could calculate the optical properties of materials", "several mini programs that could calculate the compressive properties of materials", etc. as the title of the paper.

However, Liu Feng, who wrote such an internal confidential paper alone for the first time, did not know that his prudence was completely over-thinking.

When studying computing materials, there are several papers submitted almost every once in a while, and countless people brag about it.

A basic material has been studied, and some people dare to claim to have summarized the calculation problems of this type of material.

Just like the external journals can be filled with water, internal journals are also filled with many such watered papers, and their absurdity is no less than external journals.

As for the reasons for this, on the one hand, the problems caused by management regulations.

In order to assess the qualifications of experts and professors, some internal institutions mandate how many papers people of a certain level have to publish every year. The fact is that in many aspects of internal institutions like this are thankless research, and it is normal that they cannot produce anything in a year or two...

Another reason is the academic atmosphere.

People who live a life are everywhere, and there are naturally not many internal institutions like military-industrial units. Just a few papers are just a matter of making a fuss.

As for patent application, Liu Feng paid more attention to it.

After all, no matter whether these patents can be applied outside, as long as the inventor of the patent is Liu Feng, no one can ignore his contributions and interests!

What's more, real research results can impact the attention of some people more than a theory!

You know, during this period, Liu Feng has heard a lot of rumors, saying that he has finished his life and has not been able to develop something that can be used for a long time - he wants to shut up these people!
Chapter completed!