Walking in the corridor of the Superconductivity Research Center with Tranquility, Qin Hai had the feeling of walking into the wildlife park alone, and behind every door, there were one or several bundles of hateful gazes stabbing at him. If his gaze could kill, Qin Hai would already be full of holes at this time. Through the crack in the door, he seemed to be able to faintly hear a suppressed dialogue:

"Sizzle...... Who is this person, and how can Tranquility be so familiar with him? ”

"It's not just familiar, you didn't see Jingjing's hand still holding him!"

"Oh, it's painful, how can I fall asleep tonight!"

"It's just right that I can't sleep, my stove needs to be kept at a constant temperature for 16 hours, and you just help me keep the ......"

“……”

"Xiao Jing, you didn't mean it, did you?" Qin Hai patted Ning Ning's hand holding his arm with a bitter face, and asked her.

"What deliberately?" Ning Jing didn't react, looked up at Qin Hai and asked.

Qin Hai whispered, "Why do I think there is murderous aura everywhere." ”

"Huh?" Tranquility turned her head to look left and right in surprise, and for a while, she could only hear a chaotic sound, and the doors of each real house were closed one after another. Jing Jing suddenly understood what Qin Hai was referring to, and couldn't help but chuckle: "You mean these senior brothers in our real room?" That's right, I just did it for them, and I had already made them die, and they didn't listen. ”

"Alas, don't be careful to be your shield." Qin Hai pretended to be remorseful and said.

Tranquility's pretty face was stunned, and she asked in a low voice, "What, you still don't want to?" ”

Qin Hai could only hurriedly express his attitude: "Willing, willing." ”

"Well, that's pretty much it." Jing Jing nodded with satisfaction, and the hand holding Qin Hai's arm stretched forward, truly turning into a posture of holding Qin Hai. If someone walks past them, they will find out. The faces of both men were a little red at this moment.

Fortunately, the corridor of the research center was not too long, and the two of them quickly walked to the door of the real yàn room where Chen Zongze was. Tranquility let go of Qin Hai's hand, stepped forward, and knocked on the door.

"Come in." A voice came from inside the room.

Tranquility pushed open the door and led Qin Hai into the room.

"Oops. Isn't this Mr. Qin? Why did you come here without prior notice? Chen Zong, who was wearing a white coat for making a real yàn, saw that it was Qin Hai who came in, and quickly stood up and greeted him with a smile.

Qin Hai was also full of smiles, he shook hands with Chen Zongze, and said, "I know that Teacher Chen is very busy, so I didn't notify you in advance." Suddenly visited, didn't bother Mr. Chen, right? ”

"How so? We've been waiting for you to come. Chen Zong said enthusiastically. He explained a few words to the two assistants beside him, and asked them to continue to complete the real yàn at hand. Then he said: "Mr. Qin, the smell of the real yàn room is too big, let's go to my office and talk." ”

Qin Hai agreed with a smile, and with Tranquility, he came to his office with Chen Zongze. After the guests and hosts sat down on the sofa respectively, Chen Zong pointed to Ning Ning and said, "Mr. Qin, last time Xiao Ning came back from Anhe and brought some instructions from you. We researched it and found it very inspiring. ”

Qin Hai hurriedly waved his hand and said, "Teacher Chen's words are serious. That's not an instruction, it's just some of my thoughts. In addition, don't call me Mr. Qin, Xiao Jing and I are equals, so you can call me Xiao Qin. ”

"How inappropriate is that?" Chen Zong said politely, and then changed his words. said: "Okay, since Mr. Qin insists, then I'll still call you Xiao Qin, so it seems closer." By the way, where did we just go......"

"Teacher Chen. You said that the ideas put forward by Qin Hai are very inspiring to us. Tranquility reminded from the side.

"Yes, yes, very inspiring." Chen Zong said, "You have built yì on the basis of yttrium-barium-copper-oxygen high-temperature superconducting materials, and we have considered using light rare earth elements instead of yttrium, and we have arranged for students to carry out the realizations separately. The preliminary results show that after replacing yttrium with neodymium, samarium, europium, gadolinium and other elements, the copperoxy-based compounds formed have stronger flux nailing force than yttrium-barium-copper-oxygen, and are expected to become a group of new high-temperature superconducting materials with more promising development prospects. ”

Yttrium-barium-copper-oxygen high-temperature superconducting material is the first superconducting material in the liquid nitrogen temperature region independently developed by Chinese American scientist Zhu Jingwu and Chinese scientist Zhao Zhongxian in 1987, with a critical temperature of 90K. The birth of this material has greatly reduced the application cost of superconducting materials, and the commercial application of superconductivity has seen the dawn.

Before the advent of yttrium-barium-copper-oxygen, all superconducting materials had to be at temperatures below 77 K to have superconducting properties, so liquid helium with a boiling point of 4 K was used for cooling. Helium is a rare gas with a concentration of only 1 in 52,000 in the atmosphere, and the preparation of liquid helium generally requires extraction from some type of natural gas, so it is very expensive, which also limits the use of superconducting materials.

The emergence of yttrium-barium-copper-oxygen allows people to obtain the superconducting properties of the material at 77K, that is, the boiling point of liquid nitrogen. Nitrogen, which accounts for 78% of the atmosphere, is an easily available gas. The cost of liquid nitrogen is less than 50 times that of liquid helium, and the use of liquid nitrogen can greatly reduce the cost of superconducting materials, making the application of superconducting materials cheaper and more convenient.

In this era, the research of yttrium-barium-copper-oxygen superconducting materials is the hottest direction in the entire superconducting field, and the construction brought by Qin Haitong to Chen Zongze is the new progress in this field a few years later. In fact, even if Qin Hai didn't say it, Chen Zongze might try in this direction, and what Qin Hai did was just give Chen Zongze a thrust.

According to the research and development of new materials introduced by Chen Zongze, Qin Hai added some opinions based on his own understanding, such as building yì Chen Zongze, they paid attention to the relationship between the oxygen content of the material and the crystal structure and lattice parameters of the material. He himself was not an expert in superconducting materials, and his opinions were only general, but Chen Zong was able to hear some forward-looking ideas from them, so he hurriedly recorded them one by one, preparing to have an in-depth discussion with his assistants in the future.

After chatting about these academic issues, Qin Hai changed his words and said, "Mr. Chen, I came to Beijing University this time, in addition to visiting the research center, there are some other things that I want to discuss with you. ”

"You speak." Chen Zong sat upright and said seriously.

Qin Haidao: "At the beginning of the establishment of the research center, we discussed the operation mode of the research center, and the principle we set is the integration of production, education and research, to promote production by research, and to produce and raise research, I don't know if Mr. Chen remembers?" ”

"Of course I do." Chen Zong said, "Xiao Qin, if you don't mention it, I'm going to find time to ask you." The cost of our research center is amazing, those rare earth elements are more expensive than gold, we are burning money every day, you don't feel distressed, we all feel distressed. I've always wanted to ask, what you said about promoting production through research, how do you plan to do it, and how can our research center become a hen that can lay eggs. ”

Qin Hai smiled: "What I want to talk about next is this issue. My idea is that, on the one hand, the research on new superconducting materials cannot be stopped, and we must always be at the forefront of the world. On the other hand, for mature materials such as yttrium, barium, copper and oxygen, we need to complete the process development as much as possible to turn it into the final product. ”

"Process development ......" Chen Zong scratched his head and said depressedly, "We have actually been thinking about this issue all along, but we lack manpower." The research center now has more than 20 researchers, as well as more than 50 doctoral and master's students, which is not a small number. But one person and one pit, no one can spare their hands to engage in craftsmanship, and I am too anxious. ”

"At the end of the day, we still don't pay enough attention to process development, right?" Qin Hai said with a smile, "To put it bluntly, you can't produce high-level papers by engaging in craftsmanship, so everyone is not happy to do it, this is the most critical problem, right?" ”

"This ......" Chen Zongze's face turned a little red, and he had to admit that Qin Hai's words were indeed to the point.

As with all materials science research, the discovery of new materials and theoretical research are all jobs that can produce high-level papers, and the research of materials technology, although it also has academic value, is often difficult to get to the top of the court. For Chen Zongze, his assistants, and students, high-level papers are a stepping stone for them to evaluate their professional titles and find jobs, which is something that must not be relaxed. Especially when the research of superconductivity theory is in a blowout state, who is willing to give up the opportunity to make a name for himself in the academic world and turn to what process research?

Qin Hai was a scientist in his previous life, and he was very clear about the phenomenon of "emphasizing scientific research and ignoring application" in academic circles. He also knows that the reason why China's materials industry will lag behind Western countries is not because of the lack of ability of scientific researchers, but because a large number of scientific research results cannot be transformed into actual products. In the previous life, in the face of such a phenomenon, he could only sigh and be powerless. And in this life, he has the money bag of the research center in his hand, and he can't tolerate this phenomenon to continue to exist.

"Mr. Chen, you just said that superconducting is burning money. Even if I, Qin Hai, am a local tyrant, I can't support such consumption. If the research center cannot provide practical technology, then after the initial investment is completed, I am afraid that there will be no follow-up funding. Qin Hai said to Chen Zongze in a threatening tone.

"Yes, yes, Xiao Qin, you're right." Chen Zong did not have the heroism of pointing out the country before, and replied sneeringly. There is no way, Qin Hai is the finanjin of the research center, and Chen Zong does not dare to offend him casually. Besides, people have invested so much money in the early stage, and they said that they want to turn the research results into practical technology, but they can't do it, so they can't blame the other party for being aggressive.

"So, Xiao Qin, what do you want us to do, can you give us clear instructions?" Chen Zong asked Qin Hai. (To be continued......)

PS: It's crazy to check the information, maybe there is something wrong with the writing, forgive me. Superconductivity is too complicated.