Super Xueba: Start With A Low Control Score!

Chapter 323 48 points, who is against me and who is anxious!

“what?”

“Have you really found something?”

“Student Jiang Nan, this…what is this?”

As Jiang Nan picked up the graphene from the ground, teachers at the door swarmed up immediately.

Even Huang Ting and Fang Guoping couldn’t stop them.

But if you find something, you don’t need to stop it.

To this.

Jiang Nan doesn’t mind either.

But just tossed what was in his hand, “This is the result of my experiment, a perfect graphene crystal!”

Shattering!

When this remark came out, everyone was shocked.

One of them counted as one, all with wide-eyed, open-mouthed faces with an incredible expression.

Not because of the three words graphene.

after all!

Graphene is precious though.

It is a new type of nanomaterial with the thinnest, hardest and strongest electrical and thermal conductivity found so far.

In terms of value, it is far above carbon fiber, light alloy carbon nanotubes, superconducting materials, semiconductor materials and so on.

It is said to be ten times more expensive than gold.

Known as “Black Gold” and “King of New Materials”.

However, graphene was discovered by two Tudou scientists as early as 2004, and won the Nobel Prize in Physics for this in 2010, and then there are endless production methods.

The common ones are mechanical peeling method, redox method, SiC epitaxial growth method, and chemical vapor deposition method.

so……

Graphene is not difficult to see now.

But the reason why they are still so stunned is the word “perfect” in front of graphene.

Perfect graphene.

It has never appeared so far!

Not to mention perfect.

Even ultra-high-quality graphene is difficult to produce. This is the reason why graphene has been difficult to popularize although it is good and versatile.

Despite the fact that graphene has been discovered more than ten years ago, and there are so many production methods, the real progress is very slow, because these production methods have major flaws.

Mechanical peeling method.

The operation is very simple, but the controllability is poor, the size of the obtained graphene is small and there is great uncertainty, at the same time, the efficiency is low, the cost is high, and it is not suitable for large-scale production.

Redox method.

Similarly, the operation is simple, the cost is low, and the output is high, but the product quality is low, and a large amount of concentrated acid is used, which causes great environmental pollution and cannot be produced on a large scale.

SiC epitaxial growth method.

This can produce high-quality graphene, but it is not only costly, but also requires the production of an ultra-high vacuum high-temperature environment, which requires extremely high quality of mechanical equipment.

so……

This method is also not popular.

As for the last one, chemical vapor deposition.

Although it is currently the most effective method for making graphene and the quality is good, it is also costly.

Moreover, the graphene film produced by this method is too thin to be used in a large area.

In a word.

At present, graphene has incomparable efficacy and can be applied to all fields such as composite materials, textiles, electronic information, energy saving and environmental protection, biomedicine, chemical engineering, aerospace and so on.

However, due to various factors such as high production process cost and low product quality, its development is not fast.

same.

It is not fast in theoretical research.

Because no perfect graphene has been produced so far, various theories cannot stand in practice.

For example, Wang Xuan is studying magic angle graphene.

It is definitely established in theory and is at the forefront of all graphene researchers in the world.

But it just couldn’t find super high quality, or even perfect graphene, to prove his theory in practice.

So many people think that magic angle graphene is just a scam, and many people belittle Wang Xuan.

However……

If Jiang Nan is really so simple to produce super-perfect graphene, it will definitely subvert an era, and promote the fourth industrial revolution of mankind, and change the world pattern.

“impossible!”

“It’s absolutely impossible!”

“Jiang Nan, I have also paid attention to your experiment, although it used a combination of material and chemical and caused an explosion.

“But the actual operation is not complicated, and the time-consuming is very short, and it will only take an hour to die!”

“How can you make such a large and perfect graphene in such a short period of time?”

“…”

Alex retorted first.

Not only him.

There are still many people who are not very convinced.

after all!

They are all expert professors on physics.

Even if they are not studying graphene, it does not mean that they know nothing about graphene.

Several current processes.

The production of graphene is not only of poor quality, but also takes a long time, which can take more than ten hours at any time.

Even if a single-layer graphene is made at ultra-high speed, it cannot be formed in an hour.

Even if it’s formed.

The thickness of a single-layer graphene is less than one nanometer, and it is invisible and intangible with the naked eye. Only two hundred thousand sheets of graphene are added together to have a hair strand thickness.

But what about the graphene in Jiang Nan’s hands?

It’s the size of a thumb.

And it is perfect graphene.

This is simply going to defeat their perceptions!

but……

Even if they don’t believe it, it’s useless.

Because soon they had to believe it.

If there is anyone who is most excited about the appearance of perfect graphene, it is definitely Wang Xuan.

At the same time, there is no shortage of experts and professors in the physics committee who have certain research on graphene. They judge the graphene in Jiang Nan’s hands as soon as possible.

First of all, we can be sure that this is definitely graphene undoubtedly.

As for the quality.

They first used a few simple methods.

First, although graphene is generally colorless, its light transmittance is only 97.7%, which is not 100% transparent. In theory, perfect graphene can be achieved.

This is very easy to verify.

Everyone took the graphene crystal in Jiang Nan’s hand and verified it immediately, and the light transmittance was 100%.

Second, all substances in the world have electrostatic reactions, and the electrostatic reaction of graphene is generally very small, so small that it can be ignored, but it cannot be 100% isolated from static electricity.

However……

In theory, perfect graphene can.

Wang Xuan took Jiang Nan’s graphene crystals and rubbed it on his clothes for dozens of times, then pulled a strand of hair together, and found that there was no reaction between the two.

So far.

The faces of all the people present changed.

Because of these two simple test methods, although it is not 100% proof that the graphene produced by Jiang Nan is perfect graphene, it is sufficient to prove that it is of extremely high quality.

It is much higher than the graphene produced by the previous production process, reaching the point where it is difficult to distinguish with the naked eye.

And next.

Wang Xuan and several physics teachers who have experienced research on graphene also verified the basic properties of this graphene such as strength, toughness, electrical conductivity and thermal conductivity.

General graphene is already the strongest, toughest, and most conductive thing in the world.

The perfect graphene is even better, and can even achieve 100% electrical and thermal conductivity.

after verification.

Jiang Nan’s graphene meets the theoretical standard.

Some people don’t even give up.

Then they carried out microscopy, spectroscopy, mechanical performance testing, thermal performance thermal effect analysis…

Anyway, this is Harvard’s physics experiment building.

There are all the necessary instruments.

In short, the operation is as fierce as a tiger, until finally everyone concludes that this is undoubtedly perfect graphene.

“Hahaha!”

“Finally perfect graphene can be made in this world, and then I can finally perform magic angle graphene experiments!”

“I can finally prove to the world that the magic angle graphene theory is feasible. This is not a hoax!”

Wang Xuan burst into tears.

It was caused by his overexcitement.

And Alex, those who had misunderstood Jiang Nan before, lowered their heads, “Jiang Nan, I’m sorry, your experiment was successful. You really improved the manufacturing method of the new material, and even made it. Perfect graphene!”

“It can be said……”

“Your move will change the world!”

“Our organizing committee was wrong, and I would like to express my sincerest apologies to you, and hope to get your forgiveness!”

“…”

“I don’t forgive me for putting it aside. In this game of things, should I give me the points that I should have?”

“Give it, you must give it!”

“How many?”

“48 points, it must be 48 points!”

Alex widened his eyes and said affirmatively: “The score is 24 in the scientific test, and in the experimental part, with this perfect graphene, it must be 24. Who dares to oppose me and who is anxious!”