Chapter 2010: Room temperature superconducting layout

"I just got the news that our scientists in Han also independently discovered copper oxide superconductors in the liquid nitrogen temperature zone, and announced their elemental composition as Ba-Y-Cu-O internationally. This is our Han Guo science and technology A major achievement."
At this time, there was ice and snow outside, and here, in the meeting room, the atmosphere of discussion was quite enthusiastic. Qin Guan listened to the introduction of experts and felt that everyone's efforts in this area were fruitful.
Although Han's overall scientific research strength is relatively weak, it still shows a strong side in certain fields. For example, in the field of superconductivity, Han has always been in a leading position.
Internationally, some scientists have already claimed that they have obtained a higher temperature superconductor. Just after their release, the scientists in Han also announced their scientific research results and found a superconductor in the temperature range of liquid nitrogen. The use of superconductors has once again promoted.
"However, we must also see that for our research, it is absolutely impossible to have only this kind of superconductor. We want to be practical, and it still has a long way to go." Qin Guan introduced: "We To continuously increase the upper limit of temperature, it is best to achieve superconductivity when it is tens of degrees below zero."
Superconductors are discovered at low temperatures. If the superconducting properties can be realized in a higher temperature range, of course, it is more useful. The higher the temperature, the easier it is to actually apply.
"Yes, President Qin, you are right, but it is not easy to find this kind of superconductor." A gray-haired scientist pushed his glasses and said towards Qin Guan.
"Yes, so, here I have some suggestions, I hope you can verify it." Qin Guan said.
"First of all, it is condensed matter. I hope that our scientists can develop this field and obtain superconductor-oriented materials in this field. There may be great achievements, especially in iron-based superconductors."
Condensed matter is a special quantum state, and Han's research in this area is far ahead in later generations. (When Hua Xiong was in college more than ten years ago, a professor did this, but unfortunately he didn't understand it at the time.)
Qin Guan doesn't need to say specifically, just point out the right direction. After all, domestic scientists have accumulated technology, and what they need is the general direction.
In that parallel time and space, the main direction of Han's attack is the field of iron-based superconductivity. This is not only the discovery of materials in the laboratory and the improvement of critical temperature, but also the extensive development of experiments, theories, and applications. It has also achieved industrial applications.
Condensed matter? Qin Guan's proposal made them chew seriously. They hadn't really paid attention to this direction before. Now, it suddenly shines. Yes, you can look for it from this aspect!
Finding materials for high-temperature superconductors requires theory as a basis on the one hand, and luck on the other. Maybe one experiment will come out, or it is possible that hundreds of experiments will be useless, just like Like Edison, who invented the electric light, he experimented with thousands of materials.
"The other aspect is pressurization." Qin Guan went on to introduce: "If you want to achieve higher temperature superconductivity, even room temperature superconductivity, the temperature has to be increased. Does it correspond to the increase in pressure? By changing their state to achieve superconductivity, this pressure may be very high. As for the materials, I suggest you look for materials such as hydrogen sulfide, lanthanum hydride and so on."
When they heard Qin Guan mention the room temperature superconductor, they were all stunned. This span is too big!
In fact, after 2020, normal temperature superconductivity is really not a dream. When scientists observe the superconductivity of hydrogen sulfide under high pressure, it is only minus 70 degrees. As for lanthanum hydride, it can even be Superconductivity is achieved at minus 23 degrees.
This temperature can be reached by your own refrigerator!
At this time, there are extreme conditions, and the pressure is quite high, reaching half of the pressure in the center of the earth to achieve this effect! Under high pressure, the principle is different.
The previous superconductivity was a normal structure. An atom is a rigid crystal lattice. When electrons are in relative motion, the electrons collide with the crystal lattice and slow down. This is the resistance. When the rigidity of the crystal lattice is strong enough to become hard enough after cooling, this time it spreads by wave.
With continuous development, scientists have discovered that hydrogen sulfide can produce superconductivity at high temperatures, because the crystal lattice can vibrate at high speeds. But there must be high pressure to hold the crystal lattice firmly in place to prevent vibration from tearing it apart.
In the past, when there was no pressure during the experiment, this could not be achieved. Now, as long as the magic weapon of high pressure is found, it can be achieved.
In contrast, high pressure is easier to achieve than low temperature, and industrial ultra-high pressure vessels are also mature. In this way, if your own scientific researchers look for the direction and find a suitable solution, they can easily achieve high temperature superconductivity. Now, our own research will lead the whole world!
high pressure? Although President Qin has never demonstrated his talents in the field of superconductivity, he is definitely constructive now!
After discussing with a group of experts for a long time, Qin Guan left some technical materials, left the meeting room, and just walked to the door, he received a call from Major Yang. The person he wanted has been found, and he was waiting at the door. Too!
So, Qin Guan walked to the door with relaxed and happy steps, looking at the young man who had just arrived, who was less than 30 years old. At this time, he was looking at Qin Guan curiously.
What important thing, come to me so soon? I am just a faculty member of the Naval Engineering College.
"Comrade Ma, it's nice to meet you." Qin watched the young man in front of him and stretched out his hand enthusiastically.
Now, he is still unknown, but when he arrives, his name will be known by military experts around the world, because the young man in front of him has led the research and development of the electromagnetic catapult for aircraft carriers in Han, and his research and development will be even greater. Efficient, even more advanced than Eagle Country!
It is precisely because of him that Han's aircraft carrier has made a leap, bypassing the steam catapult and directly developing the electromagnetic catapult.
Compared with the continuous failures of the Eagle Country, President Temupu ordered the abandonment of the electromagnetic catapult and replaced it with a steam catapult, while the success rate of the Han country was quite high, which greatly increased the confidence of senior navy officials, so that they decided Directly mounted the electromagnetic catapult, he is the magic man!
"The motherland needs you, the navy needs you, go, let's talk about the equipment of the warship." Qin Guan cordially took his hand, the two are actually about the same age, now they are walking together like two brothers .