From all-round academic master to chief scientist - Chapter 221 Ceramic grinding disc materials

After spending truth points for the second time, Lin Xiao suddenly felt the same feeling as when he redeemed the titanium-aluminum alloy last time, as if he understood all the truth in the world for a moment.

But probably because the materials obtained this time were not particularly important, it didn’t take long for him to have two more production methods and related processes in his mind.

“The material of this grinding disc is…silicon carbide ceramic? It is doped with a little tantalum? The content is 0.1%…well, it’s amazing.”

The material of this millstone made Lin Xiao’s eyes light up.

Indeed, as the system said, this material can be researched by arranging and combining existing knowledge, so he can easily see why this material is so excellent.

The expansion coefficient of tantalum itself is very small. It only expands by 6.6 parts per million for every degree Celsius rise. When it is doped into silicon carbide ceramics, the thermal expansion coefficient of the ceramic itself is very small, and both of them become better. .

Of course, the most important thing is how to combine the two. If you can’t combine them, it’s all in vain. The information provided by the system provides a preparation process, and the preparation process can be called an idiot-level tutorial. As long as you can understand the words, you can create them.

What surprised Lin Xiao was that his requirement was that the cost should not exceed twice that of the original grinding disc, but now if it is prepared according to this process, the cost might be even lower.

This is simply perfect, and the cost is definitely lower than the production costs of companies in the United States, Japan and Germany.

By then, when this kind of millstone can be mass-produced, China will be able to show the world its reputation as a “developed country’s crusher”.

As for the polishing liquid, it is a colloid made of silicon powder and sodium hydroxide, and it is also mixed with some other things. The cost is the same as before, but it is obviously more durable than the polishing liquid they used before. a little better.

The production technology required for polishing fluid is even simpler.

All in all, once these two materials are put into production, it will probably take less than a few months. The most important thing is the time required to set up the production line during the process. After all, the relevant molds still need to be customized, and it will take some time to prepare.

Of course, at least it can be predicted when it will succeed, which is obviously better than the kind of boring research without knowing when it will succeed.

Lin Xiao breathed a sigh of relief.

After obtaining these two materials, he no longer has to worry about the production of silicon wafers.

With the production process of these two materials, of course he doesn’t need to worry about it anymore. He can completely leave this task to others. Others can just follow the cat’s footsteps without him having to worry too much.

As for how to explain how he came up with this thing?

There is no need to explain at all. He found good people and asked people to make things according to the process he specified, and it was impossible for others to question how he made it.

Therefore, Lin Xiao does not need to do more. He only needs to wait for a few months to hear that “my country’s ultra-precision polishing technology has achieved a breakthrough, which is comparable to the United States, Japan and Germany” and “my country’s silicon wafer production technology has made another breakthrough. The production rate has been greatly improved” and other news.

As for other materials, there is no need to worry about it for the time being. We will talk about it after the servo motor is completed.

As for the servo motor, he did not intend to use truth points to solve it, but decided to do it himself. Although the servo motor also required innovation in materials, Lin Xiao had thought about it for so long and found a new way to do it.

That is to say, we start from the structure, and in addition, we also start from the intelligence aspect.

From these two aspects, what is considered is not areas such as material breakthroughs that require luck, but rather knowledge of mathematics, physics, and information.

Lin Xiao is very confident about this. Can Level 5 in Mathematics and Level 4 in Physics be enough?

“Have a good rest first, and we’ll start working on it when we return to Beijing tomorrow.”

With this thought in his mind, Lin Xiao lay directly on the bed and began to rest.

…

Time passed quickly, a few days later.

Institute of Aeronautical Materials.

“Lin Xiao, yo, you still know how to come back.”

Looking at the person in front of him, Lin Xiao smiled and said hello: “Academician Chen!”

Chen Bao is Academician Chen who brought Lin Xiao to the Institute of Aeronautical Materials.

It was here that Lin Xiao came up with the new material that could be used as engine turbine blades.

“Why are you here today? With such a group of people?”

Chen Bao said with a smile and glanced at the person behind Lin Xiao.

Lin Xiao smiled and said: “Come here and borrow your materials laboratory. I plan to research a new material, so I came here.”

“That’s it, okay, then I won’t delay you.”

Chen Bao nodded, although he was confused about what new materials Lin Xiao wanted to study, but after all, this should be someone else’s project, so he couldn’t ask more questions.

Lin Xiao did not explain too much to Chen Bao. He came here mainly to work on his grinding disc materials. However, after Dingguang Technology Company was established, it did not have its own research institute, so he thought of his previous research on aviation materials. So I had done research here, so I rented the laboratory here.

In fact, he can apply for funding from the state to build a research institute, but the research institute he wants to build will cost at least several billion, and hiring people in the future will also cost a lot.

It’s just that he hasn’t accomplished anything yet. If he wants the country to build such an expensive research institute for him, it would be a bit embarrassing, so he hasn’t made this request to the country yet.

Of course, this is only temporary. After the silicon wafer material is produced and the servo motor is assembled, he can confidently ask the country to build a large research institute for him. Then the country will definitely trust him more. The capabilities in applied science, from materials to chemistry, to physics, etc., will be integrated first, and then expanded when needed.

Without further ado, after he entered the institute, he found the laboratory he had booked before. Because he had connections, he could still borrow the laboratory of the Institute of Aeronautical Materials, which also contained various equipment he needed. Instruments and aviation materials also have requirements for polishing.

Then, he turned his head and glanced at the people behind him, and said: “Okay, everyone, after getting familiar with the instruments here, our project will officially begin. You all have basic skills in the field of ceramics, so I will do the rest. No more questions, what we want to develop is a new type of silicon carbide ceramic material.”

“Okay, Professor Lin!”

Everyone behind him responded.

These people were all postdoctoral fellows that Lin Xiao had found at the School of Materials Science and Engineering at Beijing University. They were all highly qualified. He hired them to work on projects in the name of Dingguang Technology Company, a state-owned enterprise.

There is no one with the professor level. He already knows how to prepare it anyway, so of course there is no need to use a professor.

As for the postdocs who learned that it was Lin Xiao, they naturally accepted it happily. Although Lin Xiao used to study mathematics and physics, the results of the bonding mechanism still made him quite famous in the field of materials. of.

Of course, they also had some issues to discuss before the experiment officially started. They just signed a confidentiality agreement, but they didn’t know much about the details of the experiment. They just knew that it was a ceramic material.

So someone asked: “Professor Lin, what is the use of our material?”

Lin Xiao smiled and said: “Ultra-precision polishing, do you know?”

Several people were stunned for a moment, “Ultra-precision polishing? You mean, this is the kind of grinding disc we are studying?”

“Um.”

Lin Xiao nodded and said, “This is the material of this millstone.”

These postdocs suddenly felt a toothache.

Good guy, they came directly to study this top-notch material?

Didn’t they fall into a pit?

They had previously learned that Lin Xiao hired them to do the project, so they agreed directly at the time. Looking at it now, it was their own fault.

The entire country of China does not have the materials to achieve a breakthrough, but a few postdoctoral fellows want to achieve a breakthrough?

Just kidding!

How much time will this take them?

It’s just that they have come and are here, and they are obviously too embarrassed to propose quitting. They can only wait for a while. If there is really no hope of success, then let’s talk about it.

Lin Xiao couldn’t help but smile when he saw them like this. He knew what they were thinking.

However, he didn’t say much. Once the experiment begins, I believe these people will feel lucky to be able to participate.

Then, he said: “Okay, no need to talk nonsense, I will show you our material now.”

He took out his laptop from his bag and opened various information he had compiled on the new tantalum-doped silicon carbide ceramic material.

“You should know that in the polishing process, the thermal expansion coefficient of the grinding disc material is very low, so ceramics have become a preferred material. Its thermal expansion coefficient itself is relatively low, but how to make them lower? Elements like tantalum It’s just a choice.”

“Look at the picture.”

To introduce a new material, of course you need pictures.

Lin Xiao has constructed the unit cell of this new material. In addition, he has also used computational material methods to calculate various properties of this material. Although the calculation results and the detailed properties given by the system are still unclear. Some properties, but generally not too different.

The calculation results have shown the advantages of this new material in terms of hardness, thermal expansion coefficient, and processing.

The processing performance of the material is also a key advantage, which has great significance for whether it can be mass produced.

This new ceramic material also has good processing performance, so it is easier to achieve mass production. Similarly, the cost will also be greatly reduced.

In this way, under Lin Xiao’s introduction, these postdocs thought that coming here was for free, but now they look at it, hey, it seems like it can really be done?

Just saying that the calculated thermal expansion coefficient is really impressive, and it is absolutely suitable for use on grinding discs.

“That’s it. However, our current problem is how to integrate the tantalum element with our silicon carbide ceramics and form such a unit cell, so this requires us to design the production process.”

“Now I have an idea. Is it better to dope the silicon carbide with tantalum in a centrifugal manner after melting it? This requires controlling the centrifugation rate and the timing of doping the tantalum.”

“Of course, I’ll leave this matter to you.”

As Lin Xiao finished speaking, the eyes of these postdocs gradually lit up.

So it seems that there is really a chance of success?

One of them immediately said: “Professor Lin, let’s start now.”

Several other people also echoed.

“Um.”

Lin Xiao nodded: “Thank you for your hard work.”

Several postdocs were immediately flattered. In the past, when their boss ordered them around, he would never say “hard work” to them.

“We will definitely complete the mission!”

Lin Xiao smiled and nodded.

He provides ideas and the people who verify the ideas are left to these postdocs.

As for him, of course he has nothing to do.

He will also carry out research on servo motors here.

He is already looking forward to subsequent success.