"Up." Wang Hong woke up Lin Yu, "Let's go, go for breakfast." ”

Lin Yu got dressed in a daze, ran to the bathroom and slapped his face with cold water, and instantly sobered up.

After washing, Lin Yu picked up the USB flash drive, "Let's go." ”

"What do you want to eat?"

"Two pancakes." Lin Yu missed the crispiness of Guo Jie a little.

"Aren't you from Shangjing? How do you love this? ”

"Why do you care so much?"

The two of them walked into the cafeteria while arguing.

"I'd like to go to your engine crew." Lin Yu took the two pancakes and fruits handed over by his aunt.

"Do you really have an idea?" Wang Hong stared at Lin Yu and wanted to see the flowers on his face, so he turned his head and asked his aunt for a soy milk fritters.

"Not yet, but I think there will be."

"You are a special consultant, and you should be able to apply with Mr. Su."

"I'll take a look at it when I've got my own materials done."

"I remember you said you were going to make gallium oxide materials, but shouldn't gallium oxide be semiconductor materials? How did you come up with the idea of making ablative materials? Wang Hong was puzzled, and he asked the researchers in the materials group yesterday about gallium oxide.

"The melting point of gallium oxide is 1740 degrees Celsius, and its heat resistance is already good, probably because I want to see if I can find a composite matrix that matches gallium oxide, so as to find a new type of ablative material, or add different materials to gallium oxide as the matrix to make a new ablative material."

"Even if it can't be used as an ablative material, as an extremely high-temperature resistant semiconductor material, it can be used to make integrated circuit chips to control space rockets."

Lin Yu paused and said his conclusion in the system laboratory: "Gallium oxide can be used as a ceramic-based material, and I think there is a lot of room for use." ”

Yes, Lin Yu has deduced from the data of the system that gallium oxide can exist as a coating sprayed on some key parts.

However, whether it can be used as an ablative material for thermal insulation and protective layer, this point needs to be further verified by experiments.

And there is no way to simulate the ultra-high temperature environment in the laboratory, even the top laboratories of Da Mao and Mi have not achieved a high temperature environment of 4000 degrees Celsius, so the high temperature test of hafnium carbonate has been staying at about 3600 degrees Celsius, while the theoretical melting point and withstanding temperature of hafnium carbonate are about 4200 degrees Celsius.

"Then I wish you a victorious start!" Wang Hong picked up the soy milk and lifted it.

After breakfast, the two of them came to the experimental building, Lin Yu planned to go to Academician Su first and hand in the papers he had made out last night, while Wang Hong went directly to his group.

"Academician Su", Lin Yu came quite early, and Academician Su was drinking tea in the office.

"Oh, here you are, sit down." Academician Su motioned for Lin Yu to sit down, "I have seen your design, it is great, I have handed it over to the person in charge to do according to your design." ”

"Academician Su, I made the paper yesterday, you can take a look." Lin Yu took out the USB flash drive that copied the paper.

"Oh? So fast? Academician Su was a little surprised, "It seems that you have already been sure of yesterday's results!" ”

"It's pretty much the same, after all, the material aspect is my old business, and I still have a lot of experience in changing the composition of materials a little bit."

That's not a good experience, I've been working in the system laboratory for more than half a month, and I've been making diapers.

"So, what do you want to do next?" Academician Su turned on the computer, inserted Lin Yu's USB flash drive, and opened a folder called "Lin Yu's Papers", where there was just a word document of [Design of a New Generation of Aerospace Urine Collection Device].

"I decided to make materials, after all, wasn't it for the gallium oxide materials I was researching when I was recruited? This is what Academician Su said. ”

"Yes, we want you to study the role of gallium oxide in spaceflight." Academician Su quickly flipped through Lin Yu's paper.

"I already have an idea", Lin Yu's eyes burned.

"Hmm", Academician Su turned his head to look at Lin Yu, "Tell me." ”

"GaN oxide is a semiconductor material in its own right, and there's nothing better about it than it as an integrated circuit."

"Gallium oxide itself has excellent resistance to heat and corrosion, especially since it is a fourth-generation semiconductor material with excellent conductivity and luminescence. Because gallium oxide, of course, is referring to gallium oxide here, it has a unique physical structure and good thermal and chemical stability, so it is good as the main control chip inside the rocket. ”

"If I want to use it as an ablative material, I don't have an idea for the time being, I have to try this one by one, and if it is used as a thermal insulation coating, I think it can be used, after all, it has been used as an insulating layer for gallium-based semiconductor materials before I made the experiment."

Academician Su nodded, "You already have an idea, which is good, but we still have to pay attention to one thing." ”

"What?" Lin Yu thought about it for a while, and there was nothing wrong with what he said.

"Our country's lithography machine has been stuck by foreign countries, so we can't make the wafer of integrated circuits too fine, especially the windmill country in Western Europe, they don't sell us the latest lithography machine because of the Western European Union."

"You know, last month, they have broken through the 0.78nm lithography machine development technology."

Lin Yu was silent, the problem of the lithography machine stuck in the neck has not been solved since the last century, and foreign countries have a very strict grasp of this technology.

Two years ago, the ALSM company of the windmill country has broken through the 1nm lithography machine, and in the past two years, Chinese scientific researchers have also been catching up, from 77nm to 26nm, achieving a huge leap, but in this regard, China started late and the technology is backward, so it has been blocked by the technology of the United States.

Especially after Lin Yu completed the research on gallium oxide, some foreign research institutes have gradually published research papers on gallium oxide, and the United States has implemented an export ban on EDA or ECAD software, semiconductor materials such as gallium oxide and diamond, and pressure gain combustion necessary for the manufacture of chips, in an attempt to impose blockade control on China.

Lin Yu's research on gallium oxide has made China pay attention to gallium oxide as a material early, and many domestic scientific research institutions have also attached great importance to gallium oxide, so once Lin Yu's paper is published, the corresponding gallium oxide production line has been put on the agenda.

Because Lin Yu's research paper is affiliated with Xu Ying's research project, the relevant research is handed over to Xu Ying by him.

With the deployment of gallium oxide materials in advance, Huaxia is not afraid of the export control of gallium oxide materials in the United States.