"Lin Yu, you have to think about it." Academician Su hurriedly played a round.

"Academician Hu, Academician Su, don't worry, listen to me and tell me what I think", Lin Yu was ready to tell the story, "Academician Hu, you are right, but aerospace is also an important national plan, and to realize the country's Starlink and space quantum Internet plan, it is still necessary to cooperate with the space program." ”

"If you want to do a good job, you must first sharpen your tools. If you do a good job in the space part, you don't have to worry about the distance from the earth to space. ”

Academician Hu nodded approvingly, "You're right, I'm in a bit of a hurry." ”

"So, you see I still have some research ideas for materials, and I want to make a reusable liquid rocket engine, can you let me stay here for a while?"

"This is not in a hurry", Academician Hu took a deep breath, "It was my problem just now, and I was a little emotional when I said it." ”

"My idea at the beginning was to invite you to join our project within two years, so you don't have to worry about time."

"In our judgment, the progress of the quantum computer in the United States cannot keep up with us in any case, and your quantum integrated circuit has played a great role, exaggerating to say that your design has made the real quantum computer ten years ahead of schedule, and conservatively estimated that it is also five years ahead of schedule."

"As long as the development of a quantum computer prototype is realized within three years, we will be a well-deserved leader in the quantum field."

"I'm here in the hope that you can think more about quantum computers in your free time, you are a young person, there are more inspirations and ideas, and we will continue to work hard here, but as the designer of quantum integrated circuits, I guess this heavy responsibility will fall on you in the end."

"No problem, I will implement my current idea as soon as possible, and if I can't realize it, I can also enter the research of quantum computers in advance, which you can rest assured." Lin Yu made a guarantee.

"By the way, Lin Yu, what are you here for?" Seeing that the two of them had also made up their minds, Academician Su remembered to ask Lin Yu about the original purpose of coming here.

"Oh, yes, this is the gallium oxide material group I led, and the report on the aerospace composite materials with gallium oxide as the main material studied during this time came out, and we practiced a total of four ideas, and finally selected two good performances for ultra-high temperature experiments."

"They are carbon/gallium oxide materials, and zirconia/gallium oxide materials filled with resin, both of which are not able to withstand high temperatures of 3000 degrees Celsius, and are expected to withstand temperatures of 2400°C-2750°C." This value is a little larger than the upper and lower limits they estimated yesterday outside the ultra-high temperature laboratory, and they have corrected it based on the data detected by the equipment installed in the ultra-high temperature experiment.

The properties of the two materials begin to change at 2400 degrees Celsius until they completely disappear or burn out at 2750 degrees Celsius, with the carbon/gallium oxide material having a slightly stronger tolerance and the other material having a slightly lower tolerance.

After listening to Lin Yudu's report, Academician Su also thought clearly about the stakes, "The production cost of carbon nanotube fibers and zirconia is too high at present, and if this material is used, it is not as good as the material we use now." ”

Lin Yu nodded, and then said, "I think there is still room for gallium oxide, but I haven't found a reasonable clue yet." ”

"In fact, the best material at present is the carbon/hafnium nitride found in Da Mao country, but our current means should not be able to carry out large-scale industrial production, on the other hand, the reserves of hafnium in our China are very small, but only more than 1,000 tons, which is a particularly optimistic estimate." Academician Su said regretfully.

Lin Yu didn't know how much hafnium reserves there were in Huaxia, "Are the reserves of hafnium so small?" ”

"The reserves of hafnium in the world are not much, only more than one million tons, mainly associated with zirconium, but you also know that associated ores do not exist under many geological conditions, such as zirconium reserves of about 7.6 million tons in China, and there are only two associated hafnium in the country."

"This rare resource really can't stand up to use!" Academician Hu sighed.

"In fact, the application of gallium oxide is already a very luxury, the world's reserves of gallium are about the same as hafnium, but gallium as a semiconductor material, not too much, even if we make gallium oxide coatings, we can only spray protection on the main electronic components."

Academician Su pointed out that the greatest use of the gallium oxide coating researched by Lin Yu is to protect key electronic components.

"Do you have any other questions besides this?" Did Academician Su sign Lin Yudu's application for the completion of the project?

"I want to look at other materials, or the types of aerospace composites, and I feel like I've recently turned on the inspiration switch, and there are a lot of ideas waiting for me to realize." Lin Yu didn't say anything about the reusable liquid rocket engine, he felt that this was not the time.

And since he talked with Academician Hu just now, he has an inexplicable sense of urgency in his heart, and he wants to take advantage of the time here to make as many composite materials as possible from the system.

Finally, if you get the liquid rocket engine, you can end your work at the space center and focus on the work of quantum computers.

"Yes, if you have an idea, you can boldly implement it, and I will support you."

Academician Su said that he was Lin Yu's strongest backing.

"Then I'll not bother for now, I'll go and experiment." Lin Yu got the approval list of the project and said hello before leaving.

The two academicians watched Lin Yu leave.

"Am I right? This is a young man with ideas. ”

"It's good to have ideas, isn't it? Having an idea means that he has made up his mind! ”

"He's a very good junior!"

Lin Yu went straight back to the original laboratory, where his two assistants had been waiting for a long time.

"Consultant Lin, how's it going?" They wanted to know Academician Su's reply.

"It's okay, it's pretty much what I thought."

Well? What do you mean?

The two assistants were confused.

"I applied to Chief Master Su to continue the research, and we have to continue the research."

"Isn't gallium oxide going to stop when it's done?"

"I have other materials I want to make, so gallium oxide will stop first." Lin Yu took out the materials he had just printed downstairs and showed them them.

"This is ......," one of the assistants pondered with the materials in hand, and the other said in a lost voice, "more than a dozen materials!" ”

"Consultant Lin, where did you get so much information?"

"It's just some of my ideas, we still have to try them one by one, hard work for you two."

"It's okay, it's not hard." Flipping through the information, the more the two of them looked at it, the more excited they became, with their professional knowledge, Consultant Lin had a lot to offer.

It is said that the material major is one of the sinkholes, but with Consultant Lin, how can this be regarded as a sinkhole!