Hand rubbing nuclear fusion live in the wilderness

Chapter 181 Come on, hurt each other
Pinching the clock, Won waited for another minute.

The count on the resistance thermometer on the side wall has stabilized at [-] degrees.

The electric heating crucible in the induction furnace coil is already incandescent, like a light bulb.

Two thousand and four Baidu!There are very few chemical fuels that can reach such temperatures.

Under normal circumstances, the combustion temperature of acetylene used for welding and cutting metals is only 2000 two hundred degrees.

Of course, this is not the limit of the electromagnetic heating melting furnace, but it is the limit of the temperature that the induction furnace he created can raise.

Because the materials in his hands are incomplete, such as tungsten, a high-temperature resistant material, he does not have in his hands.

The electromagnetic frequency conversion coil of today's induction furnace is made of carbon-chromium-copper alloy.

The high temperature limit that can be tolerated is about [-] degrees, and if it is higher, the induction coil will melt by itself.

If he can find metals such as tungsten, tantalum, and hafnium, he can manufacture chemical materials that can withstand high temperatures of [-] degrees.
Of course, if you want to provide this temperature with an electromagnetic heating melting furnace, the entire device has to be redesigned.

And even if the material is found, to reach this temperature, the requirements for industrial frequency and voltage are also very high.

The industrial power frequency must be increased to at least one million hertz, and the voltage must also provide high-voltage electricity above one thousand volts.

With his current industrial foundation, he still can't do this kind of intensity electric frequency.

Compared with the general mentality of the audience watching a movie in the live broadcast room, the researchers in the laboratories of various countries are much more sensitive.

The attention of these metal experts and metal R & D personnel is not on the electromagnetic heating melting furnace from the beginning to the end.

Their focus is on thermometers on the walls and electrically heated crucibles in induction coils.

When the temperature exceeded two thousand degrees, the hearts of these professional scientists began to itch.

The magnetic heating melting furnace is not a very complicated thing in the eyes of these professional scientists. The basis of the magnetic heating melting furnace lies in the magnetic field and eddy current produced by the magnetic coil of the induction furnace.

It is very simple to create a high-frequency magnetic field by using a high-frequency current to heat up iron-group metals. This is something in high school physics.

But any ferrous metal has demagnetization effect.

Especially in the case of high temperature, iron metal is easy to lose its magnetism.

Metallographers refer to the temperature at which magnets and magnets completely lose their magnetism as the "Curie temperature".

The Curie temperature of steel is 770 degrees.

If this temperature is exceeded, the violent molecular thermal motion will destroy the regularity of the direction of electron motion, and the magnetism of the magnet will disappear.

Just like red-hot iron cannot be attracted by a magnet, the iron-based metal after demagnetization cannot be reheated naturally.

However, the magnetic heating melting furnace based on magnetic field heating will lose its effect.

After demagnetization, the end result is either that the crucible cannot be reheated, or the induction coil will be burned out.

Even some iron alloys doped with tungsten chromium or other rare metals have a higher Curie temperature, but it is impossible to reach two thousand degrees without losing magnetism.

Therefore, ordinary industrial electromagnetic heating is difficult to achieve ultra-high temperature heating, and the cost of infrared heating that can achieve ultra-high temperature heating is too expensive.

But in the KRW live broadcast, this set of magnetic heating melting furnace is an ordinary industrial electromagnetic heating.

The reading displayed on the resistance thermometer clearly exceeded two thousand degrees.

This makes these metal scientists feel itchy.

Curious to know exactly how Won did it.

I want to know what material the induction furnace magnetic coil and electric heating crucible are made of.

It's a pity that the barrage of questions sent out was like water droplets falling into the sea, and quickly passed through the endless barrage, without attracting the anchor's attention and explanation at all.

Scientists and researchers of Qi's National Laboratory have applied to the higher authorities more than once to ban other netizens' barrage.

Reluctantly, the higher-ups were equally powerless, and they thought too, but they had already tried all means except shutting down the server.

But this live broadcast room is like a bug. Douyu has no authority to deal with netizens at all, and it can't even be banned.

At this moment, a barrage caught everyone's attention.

[Shonan Canxing Nonferrous Metals Research Laboratory sent out a super rocket*10, can the anchor tell you in detail what materials you use for the electromagnetic heating coil and crucible?Can we chat in private? 】

A bullet screen with ten super rockets occupied the virtual screen for a full minute, attracting everyone's attention.

[Fuck, another local tyrant! 】

[Fifty thousand, just throw it away like this. 】

[Calm down, it's not the first time. 】

[I remember that during the last live broadcast, someone also smashed 10 yuan for Super Fire. 】

[Speaking of how powerful the team behind the anchor is, this kind of technology that everyone else wants is broadcast live just like this? 】

[I really think this anchor may not be from Earth. 】

[What kind of team is behind it, maybe they got some kind of system?Can't hide now? 】

[A person climbed technology to the electric age in the primeval forest, do you dare to believe this?Anyway, I can't believe it. 】

[What about the country?Hasn't the country investigated yet? 】

[I think it may not be found. 】

[People are on alien planets, how to find the country (dog head)]

With the ten rounds of super fire in this laboratory, the live broadcast room became lively again.

Countries are not the only ones who have noticed the abnormal technology revealed in the KRW live broadcast room.

Many private laboratories, research institutes and even some ordinary audiences have also noticed this.

It's just that like everyone else, they can't get in touch and can't find this person.

And it has been more than a year since the live broadcast.

Although the special operations team has cleared some of the comments on the Internet, the live broadcast room of the Korean won has always been there.

They can't control the speech in the live broadcast room, and the technology that appears during the live broadcast is getting more and more exaggerated.

In the end, there are various large rewards that pop up from time to time, and now the situation is almost on the verge of collapse.

The special operations team is almost unable to control public opinion.

News on the Internet is easy to control, but people's mouths cannot be controlled.

What's more, there is a live broadcast room that they can't control.

So every live broadcast, many viewers who watched the live broadcast guessed and discussed in the live broadcast room whether Won was an alien, or whether he got a system or something.

It's just that these remarks have not been confirmed and have not received a response from the Korean won.

In the chemistry lab, Han Yuan also noticed the barrage, but didn't respond.

Since he manufactured W410A refrigerant, this kind of tipping from laboratories, research institutes or companies has become more and more frequent.

There was even a reward in this live broadcast for him to explain the details of some materials in the last live broadcast.

This means that in reality, many people or laboratories have discovered the reproducibility of some materials in their live broadcasts, and want to contact him in this way.

It's just that he never responded, so the general company or research institute didn't donate again after donating once.

After checking the refining status of the silicon carbide material and confirming that the silicon carbide in the crucible was almost smelted, Han Yuan cut off the power supply of the magnetic heating melting furnace, and then put on the protective device to take the crucible out of the induction furnace.

The rough molds for making transistors have been prepared, and the molten silicon carbide is poured into the corresponding molds one by one, waiting for cooling and forming.

After disposing of all the silicon carbide materials in the crucible, Han Yuan took off his protective gear.

The cooled silicon carbide material poured out is like an eraser, square and square, with a dark brown surface.

A silicon carbide solution in a crucible was finally poured into a silicon carbide crystal of about 30 yuan.

A piece of silicon carbide was pried out from the mold, and Won checked it in his hand. After confirming that there were no problems such as bubbles and cracks, he put it in his hand and showed it to the audience under the camera.

"The little thing in my hand is purified silicon carbide,"

"Compared to the original germanium transistor, silicon carbide is the third-generation semiconductor material and belongs to one of the artificially synthesized semiconductor materials."

"It is a semiconductor with high thermal conductivity, high saturation, high electron drift rate, and high striking field strength."

"With this, I can make all kinds of diodes and triodes."

[Didn't you mean to build a transistor computer?What are diodes and transistors? 】

【Did you graduate from high school?Diodes and triodes are transistors, but they are called differently. 】

【wrong!Transistors are a university thing, and high school doesn't talk about it at all. 】

[I know everything from metals to chemicals to electricity, if only I can change this brain. 】

[Can you explain in detail the manufacturing process and the principles of semiconductor operation? In human language, the kind that ordinary people can understand! 】

【Explain it whatever you want, if you understand it, I lose! 】

[Although I once thought of the fear of being dominated by transistors in class, I also want to hear it. 】

[Then, start the adjustment? 】

Seeing the request on the bullet screen, Han Yuan smiled and said, "It's too complicated to explain, so I'll make a long story short and try to be as simple as possible."

"As a friend said, diodes and triodes are actually transistors, and they are a type of transistor."

"Broadly speaking, a transistor is a solid-state semiconductor device."

"Including diodes, triodes, in addition to field effect transistors, thyristors, etc., there are many types."

"To understand how a transistor works, first understand what a transistor is made of."

As he spoke, he picked up a silicon carbide semiconductor crystal, found another piece of silicon dioxide and a piece of aluminum, and then stacked them on top of the silicon carbide, in the middle of the silicon dioxide, and under the aluminum.

"Ordinary transistors generally consist of three layers of semiconductors, which have a very strong ability to hold current."

"Conductive materials such as silicon and germanium have the ability to carry electrical current between a conductor and an insulator surrounded by plastic wires."

"If silicon is doped with impurities like arsenic, phosphorus, antimony, etc., it will gain some extra charge carriers, electrons, called an N-type or negative semiconductor;"

"And if the silicon is doped with other impurities, gallium, aluminum, it will acquire fewer charge carriers, namely holes, and is called a p-type or positive semiconductor."

"It's like the pile of things in my hand now."

"It's an extremely simple bipolar transistor."

"It has three layers, and you can think of each layer as a terminal or pole, so this kind of thing is also called a triode."

"The triode is composed of two PN structures, and the two PN junctions divide it into an emitter, a base, and a collector."

"Correspondingly, three electrodes are generated: emitter, base and collector, corresponding to the three layers of silicon carbide crystal, silicon dioxide and aluminum."

"As for the working principle, first of all, the power supply acts on the emitter junction, which is silicon carbide, so that the free electrons in silicon carbide continuously flow to the base area, which is the silicon dioxide layer."

"Because of the properties of silicon dioxide semiconductors, these free electrons can be gathered together to form an emitter current."

"When there are more and more electrons in the silicon dioxide, other electrons will be squeezed to the collector, that is, the side of the aluminum plate, forming a collector current, thereby producing an amplification effect."

"Finally, due to the large reverse voltage at the collector junction, the free electrons in the collector region are prevented from diffusing to the base region."

"It's like having staff stop you from running backwards from finish to start."

"That's how the 'bipolar transistor' works."

After a pause, Han Yuan added: "The working principle of bipolar transistors is actually the simplest among transistors."

"If you can't understand this, then everyone can't understand the field effect transistors behind."

After finishing speaking, Han Yuan took a sip from the water glass on his table, and then looked at the barrage. I don't know how many viewers in the live broadcast room understood it, probably more than half of them?
In fact, in front of computers and mobile phones, most of the audience were already dumbfounded, and after a while they came back to their senses and started typing and complaining.

【devil! 】

[I'm confused, what's all this? 】

【understood! 】

[The person upstairs is afraid that he understands this. "Brain: What is this talking about? Keyboard: That's it?"】

[Transistors are actually very simple. There are two types of bipolar transistors, PNP and NPN. Remember that electrons can only flow from the P pole to the N pole. 】

[I am very happy to learn something that I will never use in my life! (;Д `)]

[Who asked the anchor to talk about transistors at the beginning, come out and get beaten!Come out and die! 】

[Anchor anchor, I understand this, I want to know about field effect transistors ヾ(▽)ノ]

【? ? ? ? ? ? 】

[Drag the one upstairs and beat him to death, it's hopeless. 】

[Shooting for 10 minutes! 】

[Thousands of cuts! 】

[However, there is one thing to say, what the anchor said is indeed very simple, much simpler than what my university teacher said, at least I now understand the working principle of the PN section. 】

Seeing the complaints on the bullet screen, Han Yuan showed a happy smile on his face, making you say that I am an alien all day long.

Come on, torture each other, it's what you asked for.

Putting away all the silicon carbide semiconductor crystals, Won started to configure the hydrogen fluoride solution.

The hydrogen fluoride solution is actually hydrofluoric acid, which is a weak acid. He made it when he made cryolite last time.

In addition to being used to corrode glass, it is also a material for processing silicon carbide semiconductors or silicon crystals and silicon semiconductors.

The raw materials for preparation are still fluorite and the set of containers used to make cryolite.

The processed and purified fluorite is placed in the first container, and then a weighed amount of sulfuric acid is added into it.

Then light the alcohol blowtorch under the iron frame and start heating. The reaction between sulfuric acid and fluorite will produce toxic hydrogen fluoride gas.

The hydrogen fluoride gas will pass through the next container along the plastic pipe, and dissolve into the water to become hydrofluoric acid.

The prepared hydrofluoric acid can be used to etch the silicon carbide to etch the trenches.

　First send and then change

　　
　
(End of this chapter)