Starting from a bankrupt steel mill, building a materials empire

The National Defense Department, the Intelligence Center.

Deputy Secretary James was looking through international intelligence.

Recently,

The most eye-catching thing in the international community is the diplomatic tussle between the Dragon Kingdom and the three countries.

Skirmishes broke out between the two countries on the border.

It ended in the victory of the Dragon Kingdom.

However, James keenly smelled something unusual in it.

Just a few days ago,

A special forces squad in the Dragon Country, 20 people killed 200 people, shocking the world.

Now the entire patrol team of Ah Mikuni has been captured.

And there were no casualties in the Dragon Kingdom.

There must be some connection between the two.

It's a pity that there is too little information in hand.

James analyzed it for a long time, but he couldn't analyze the reason.

"It can't be because they suddenly have superpowers!".

James rubbed his forehead, a headache.

"Is there any new information about the Anseong Steel Plant recently?".

James asked the assistant.

"No, we sent a couple more spies, and one of them, who was discovered, tried to resist and was killed on the spot. "

The assistant reported.

"Keep sending new spies. "

James gave the order.

......

Anseong Iron and Steel Plant.

Li Xu is also browsing international news.

Just now, Vice Minister Gu of the Logistics Department called him to express his gratitude and hope that Anseong Iron and Steel Plant could provide more super body armor.

Li Xu agreed.

According to the current points situation, Li Xu plans to provide another 1,000 sets.

Of course, the price of each set is not cheap.

A set of body armor costs 300,000 yuan.

Vice Minister Gu gladly accepted.

For him,

It's so cheap!

You know, these body armor can turn the most ordinary soldier into a superman.

Don't say 300,000 yuan, even if it's 3 million yuan, he has to buy it.

After the super body armor was sold,

A large number of points are credited to your account.

Li Xu began to think about the next new product.

"You have to protect yourself!".

Li Xu pondered.

Just yesterday,

Agents of the security services stationed in the county town arrested a spy.

Cracked their espionage scheme.

Based on the lessons of the last failure, that spy planned to kidnap Li Xu directly.

In the eyes of the spies, ordinary people do not know what technology has been updated at the Anseong Iron and Steel Plant.

He, the factory director, must know.

It's a pity that the plan was discovered before it was implemented.

The staff of the Security Bureau specifically found Li Xu and explained the situation to him.

Tell Li Xu that you must be careful when you go out recently.

In view of the significant contribution made by Li Xu,

Li Xu can apply for protection from state security personnel.

Li Xu expressed his gratitude for this.

And then there was a moment of fear.

"The beautiful country is mad, I must protect myself. "

"But how?".

Li Xu now wears super body armor as underwear.

Even if you get hit by a gun

It will also be safe and sound.

But,

As long as he goes out, he will definitely be stared at.

It's a really bad feeling.

"It would be nice to be able to be invisible, and you won't be detected anywhere. "

Thoughts flashed.

Li Xu rolled his eyes and suddenly smiled: "Hehe, for others, stealth is just a fantasy thing, but for me, it's not impossible to do." "

He has a material system.

You can give entries related to the material.

"Let me think about it, stealth materials ......".

Li Xu doesn't know much about stealth materials.

He searched the Internet.

Only then did he discover stealth technology, which is one of the top technologies in the world.

There are only a few top countries in the world that are capable of producing high-level stealth materials.

Among them are the Dragon Kingdom and the Beautiful Country.

It's just that the technology of the beautiful country is far ahead.

And applied to fighters, AWACS and other combat equipment.

Therefore, the stealth fighter of the beautiful country is famous all over the world.

They can invade other countries' airspace at will.

If anti-stealth technology is not developed, it will be difficult to detect.

Li Xu continued to understand.

There

are many disciplines involved in stealth technology

Materials science, optics, electromagnetics, aerodynamics and structure are involved.

For example, stealth drones, although through structural optimization, can use various concave surfaces to weaken electromagnetic wave reflection.

But at the end of the day, stealth still depends on coatings.

The most important property of invisible coatings is wave absorption.

To put it simply,

The radar emits a band that reaches the stealth fighter.

If the stealth fighter absorbs this band, it will not reflect the band.

Then the radar will not be able to detect the stealth fighter.

According to this principle,

Absorbers are designed to match the thickness of the coating with the wavelength of the radar wave, which can absorb signals at most specific frequencies.

Once it works, it's very efficient.

Or it is a non-resonant magnetic radar absorbing material that absorbs radar waves of a certain frequency.

The F22 fighter jet of the beautiful country is a composite coating of gallium oxide and silver.

Despite its excellent absorption properties, it is very delicate, requires careful maintenance, and is highly toxic.

There is also an extremely advanced stealth coating, electromagnetic metamaterials are the latest direction of the development of stealth materials.

The Dragon Kingdom is currently conducting research.

It's a pity that it hasn't been studied yet.

"Got it!".

Li Xu looked at the web page on the computer and suddenly realized.

To put it bluntly, materials that can absorb various wavelength bands are stealth materials.

The world is filled with all kinds of electromagnetic waves.

There are naturally occurring electromagnetic waves, as well as electromagnetic waves emitted by radar.

There are infrared, ultraviolet, gamma rays, ......

Thousands of different types of light.

Just absorb all the light.

Then naturally, it will also be invisible.

And even further,

Coated with powerful stealth materials.

Even if you are standing opposite a person,

The man couldn't see it either.

Because, the human eye is able to see objects, also because of the reflection of light, because of the rays produced by various objects.

And all the rays are gone.

Then it is natural to be able to achieve true stealth.

"It's too strong!".

Li Xu was excited.

"I'm going to make a real invisibility cloak!".

He continued to check the information.

What are the absorbing materials?

There are carbon-based tin foil materials, such as graphene, graphite, etc.

There are iron-based tin foil materials, such as ferrite and magnetic iron nanomaterials.

There are other types, such as conductive polymers, chiral materials, plasma materials, etc.

"Steel is readily available, so iron is used. "

Li Xu quickly made a decision.

Steel can be combined with conductive and dielectric layers to form composite materials to achieve the function of absorbing waves.

Among them, the conductive layer can reduce the reflection of electromagnetic waves, and the dielectric layer can enhance the attenuation of electromagnetic waves.

There are many ways to do this.

After Li Xu's comprehensive comparison, he chose one of them.

Iron is smelted into an alloy with rare earth elements and doped elements

It is then crushed into powder by the hydrogen explosion method or ball milling method

It is then reacted with hydrogen to form a composite of rare earth hydride and α-Fe

Finally, rare earth oxides or nitride/α-Fe composites are prepared by oxidation or nitriding or nitriding plus oxidation at low temperatures.

Normally.

Even if you know the principle, you can't do it.

Because there is no high-tech technology, there are no top-quality materials.

Knowing only the principle is tantamount to a castle in the air.

However, Li Xu is different.

He has an entry system.

In the process,

All obstacles encountered are solved with entries.