Chapter 502: Abnormal Characteristics of Improved Superconductors
After making a call to Zheng Hai, Xu Chuan got in the car and rushed from Nanda to the Sichuan-Hai Materials Research Institute.
It was originally planned to take two days to complete the report meeting, but something unexpected happened midway, which caused the time to be extended for several days.
At this moment, he was already a little impatient to know the test results of the improved superconductor.
After all, this new material involves more than one technology.
The performance of miniaturized controllable nuclear fusion reactors, aerospace engine technology, and the construction of large strong particle collider...these cutting-edge scientific equipment are all related to the superconducting properties of improved superconductors.
Especially the critical magnetic field is the core point of these technologies.
.......
At the Chuanhai Institute of Materials, Xu Chuan knocked on the door of Master Xiong Fan Pengyue's office, and then opened the ajar door and walked in without waiting for a response from inside.
In the office, just as Fan Pengyue was about to say, "Please come in," the door was pushed open.
When he saw the person coming, he was stunned for a moment, then quickly stood up, smiled and gave a thumbs up and said: "Junior brother, Niu, we will solve the defects on the spot and build a bunker."
Obviously, although he did not go to Nanjing University, he paid attention to the two days of lectures.
After all, he is also a doctoral student in materials physics who graduated from Academician Chen Zhengping, so he will definitely pay attention to such cutting-edge lectures.
Not to mention, the speaker of this report meeting is still his current boss. If he doesn’t brush up his favorability, he will miss such a good opportunity.
But what he didn't expect was that this wave of flattery actually hit the horse's legs.
Xu Chuan shook his head gently, obviously not interested in this. He skipped the topic and asked: "Have the test results of the improved superconducting material come out? What are the specific conditions?"
Hearing this, Fan Pengyue smiled, took out a report that had been prepared in advance from the drawer, handed it over, and said: "The test has been completed, and the report has been prepared. Take a look."
Xu Chuan stepped forward, took the test results and looked through them.
One item of data, as well as various electron microscope structural scans, spectral analysis diagrams, molecular crystal structure diagrams and other test reports flashed through his eyes.
[KIC fracture toughness test data:.......]
【......】
[Thermal conductivity: 591.3W/m·k]
[Critical temperature (Tc): 127.3K]
[Critical magnetic field (Hc): At 127.3K, the critical Hc is 40.71T; at 77.5K, the critical Hc can reach 44.55T, and the highest can reach 46.68T...]
[Critical current (Ic): In the 127.3K superconducting transition state, it is 5092A/mm2, up to 5723A/mm2...]
【Critical current density (Jc):......】
.......
Compared with the data from the last hasty test, in the past few days, the Sichuan Hai Institute of Materials has conducted repeated and detailed tests on the improved superconductor.
Whether it is conventional performance or superconducting performance, the most detailed indicators have been obtained.
Although the data is slightly different from the first round, the difference is not large and does not affect the performance at all.
"Yes, thank you for your hard work."
After reading the report in his hand, Xu Chuan nodded with satisfaction.
Judging from the test data, it fully met his expected requirements, and was even better than he imagined in terms of toughness and critical current.
With this improved superconducting material, the two technologies of miniaturized controllable nuclear fusion and aerospace engines have a sufficient foundation.
"The improvement in the critical magnetic field is indeed excellent, almost doubling it. But speaking of it, what are you doing with such a high magnetic field superconductor?"
"If it is a commercial equipment, even if it is a nuclear magnetic resonance equipment, ordinary high-temperature copper-carbon-silver composite superconducting materials will be enough, right?"
"For the Large Strong Particle Collider?" Fan Pengyue looked at Xu Chuan in the office and asked curiously.
Compared with the high-temperature copper-carbon-silver composite superconducting material they previously studied, this improved superconductor actually only changes the critical magnetic field.
Although the critical magnetic field has been increased, for most equipment, such a high critical magnetic field is not used under normal circumstances.
However, he did know that this junior brother was presiding over the construction of the country's Large Hadron Collider. Perhaps he was preparing for this?
Xu Chuan did not answer the question directly. Looking at the report in his hand, he asked: "Did you notice anything strange in this report?"
On the report document in his hand, he noticed a very interesting and strange data.
Fan Pengyue asked curiously: "What's strange?"
Xu Chuan looked up at him and replied: "Compared with high-temperature copper-carbon-silver composite superconducting materials, the intensity of the critical current of this improved superconductor has been reduced, and the intensity of the critical magnetic field has been increased. Don't you think so?
Did you notice this?"
For superconducting materials, because of the characteristics of zero resistance, the material itself can achieve high current density through higher current in a shorter time, thereby generating a stronger magnetic field. This is the core mechanism of strong magnetic field of superconducting materials.
.
Whether it is low-temperature superconducting materials, high-temperature superconducting materials, or hybrid superconducting magnets, their mechanisms are all derived from this.
However, on this improved superconductor, the critical current and critical current density are reduced, but the critical magnetic field intensity is increased. This phenomenon obviously violates common sense.
This data greatly aroused his curiosity and interest.
Theoretically, this phenomenon should not occur.
But when things go awry, there must be a monster. Since it breaks the rules and appears, it means that there is a complete set of mechanisms behind it to support its appearance.
And sometimes, a small unexpected discovery may greatly promote the development of science and technology.
This chapter is not over, please click on the next page to continue reading! Just like the discovery of penicillin.
In 1928, Professor Alexander Fleming, a bacteriologist in London, discovered mold growing on a petri dish in his laboratory after returning from vacation.
This was originally the result of accidental contamination. If it were other scholars, they might just frown and throw away the petri dish.
But after careful observation, Professor Fleming found that there were no other bacteria in the area around the mold.
Thus, one of the greatest products in medicine, penicillin, known as the 'miracle drug', was born.
Although it has gradually receded from the stage, it has prevented millions of people from dying from infections and diseases in the past century.
It has played an indispensable role in the development of human civilization. However, it was born out of an accident.
Therefore, Xu Chuan has always attached great importance to unexpected clues that may have value during the experiment.
If this were not the case, improved superconductors would not have been discovered.
However, master Xiong Fanpeng has a different view on this matter.
He shrugged and said, "It's very interesting, but there are so many interesting phenomena in the material development process, and we can't study every one of them."
For the field of materials, the deeper you go, the more you will find various strange and abnormal phenomena.
If we want to fully explain these things, I'm afraid it won't be enough for everyone to devote their energy to it.
Xu Chuan smiled and didn't care: "Then just think that I am researching a material with a strong magnetic field for the Large Strong Particle Collider."
The research on miniaturized controllable nuclear fusion technology and aerospace engines is a key national confidential project. Although the Chuanhai Institute of Materials belongs to him, and the master Xiong is trustworthy, he cannot disclose the use of this new material.
come out.
Even if it takes some time, Sichuan-Hai Materials Research Institute will participate in these two projects.
But after all, we haven't signed a confidentiality agreement or contract yet, so we can only be regarded as outsiders.
After explaining it casually, he lowered his head and started reading again.
Perhaps to other people, this novel phenomenon is nothing. But to him, it is a necessary spirit not to miss anything interesting.
And to be honest, he vaguely felt that there seemed to be something very important hidden behind this abnormal phenomenon.
Perhaps more important than improved superconductors themselves.
After looking through the report in his hand twice and finding no breakthrough for a while, Xu Chuan rolled up the document in his hand and held it in his hand.
"I will take this test report with you first. In addition, please give me the detailed production data of the improved superconductor. I will use it."
Fan Pengyue nodded and said, "I'm ready for this."
As he said that, he took out the hard drive from the drawer and handed it over: "All the information you want is inside."
Having followed Xu Chuan for so long, he naturally knew some of this junior brother's habits, so he was prepared early.
Xu Chuan took the hard drive and stuffed it into his pocket.
Although he was very interested in this unusual and strange phenomenon caused by improved superconductors, he did not have time to study it in depth for the time being.
Now that the improved high-magnetic field superconducting material has been completed, it is time to go to Xinghai Research Institute to promote the manned spaceflight and lunar exploration projects!
