Ten days is not a long time, but for Xu Chuan, it is enough to solve the problem of HiSilicon and Huaxin.

Originally, he thought it might take a month or two to do it, but after learning about the neural network architecture and the underlying mathematical logic and modeling foundations, he realized that this kind of thing is almost entirely based on mathematics.

Although there are some things like chip design in it, it is not difficult for him to understand these things.

The days passed like this, and in the first week after the Lantern Festival, there was good news from the Chuanhai Materials Research Institute.

With the overtime efforts of the modelers of the computing laboratory of the institute, a mathematical mechanism model of the strong diamagnetic mechanism of KL-66 material was established.

Receiving this news, Xu Chuan's eyes brightened by two points.

Superconducting materials with strong critical magnetic fields are one of the cores of miniaturized and controllable nuclear fusion and aerospace engine systems.

Only when the critical magnetic field breaks through the original scope can it provide a stronger confined magnetic field and an accelerating magnetic field.

The mathematical mechanism model of the strong diamagnetic mechanism of KL-66 material is undoubtedly the most critical beginning.

After arranging the experimental experiments, Xu Chuan also happily accelerated the speed of solving mathematical problems.

After solving the problem of HiSilicon and Huaxin, the next step is his own.

The development of aerospace is the first step towards space and the deep space of the distant universe.

After staying up for two nights and speeding up some speeds, after solving the problems of HiSilicon and Huaxin, Xu Chuan handed over the answers and methods to Mao Shun and quickly rushed to the Chuanhai Materials Research Institute.

The breakthrough in the field of chips is not his credit.

Using mathematical skills to help HiSilicon and Huaxin solve difficult problems is just the icing on the cake.

However, Xu Chuan is still very happy about this.

After all, the breakthrough of science and technology cannot rely on one person.

This is the reality, no, he can't do it alone, and he can't lead the development of all fields.

Unless you give him a universal system and give him a thousand years of life, he may have the opportunity to touch and be familiar with every field.

Just like the development of chips, this can be said to be a field that is no less complex than controlled nuclear fusion technology.

From design, manufacturing, packaging, and testing, each link has derived a variety of branches.

Not to mention the rest, just the manufacturing link, a lithography machine, is enough to kill most countries.

Don't look at AMSL's ability to produce the most advanced EUV lithography machine in the world today, but that is not the result of one country in the country of windmills.

This kind of industrial crown jewel is a collection of more than a dozen Western countries, dozens of top companies to work together to complete the research and development.

It is self-evident that China wants to pursue the achievements of more than a dozen countries on its own.

Therefore, for the development of science and technology, Xu Chuan naturally hopes that the more people enter this field, the better.

All the way to the Chuanhai Materials Research Institute, Xu Chuan made a call to Fan Pengyue, and the master Xiong quickly rushed down.

"How's it going?"

Looking at the senior brother wearing a familiar white coat, Xu Chuan didn't talk nonsense, and asked directly.

Fan Pengyue briefly reported: "The model has been established, and the mechanism of high-temperature copper-carbon-silver composite superconducting materials has also been introduced, and simulation experiments are currently being done to see if the model can be used to find a way to increase the critical magnetic field of superconducting materials." ”

"Take me to see it first."

Xu Chuan nodded, didn't say much, and walked towards the laboratory.

Raising the critical magnetic field of superconducting materials is not an easy task, since 1911, Camerin Onnes in 4. After the extremely low temperature of 2K was found to have zero resistance of mercury.

The phenomenon of superconductivity has attracted wide attention from the physics and materials science community, and a large number of researchers have devoted themselves to the research and development of such new materials with high current-carrying capacity and the revelation of the superconducting current transport mechanism.

But to this day, there is still not much breakthrough in superconducting materials.

If it weren't for the high-temperature copper-carbon-silver composite superconducting materials he brought, it would still be a problem for today's scientific community to apply high-temperature superconducting materials on a large scale.

As for how to improve the three critical properties of superconducting materials, that is, superconductivity, it is still a cutting-edge discovery in the scientific community.

Although today's researchers can improve the critical magnetic field strength of some superconductors by controlling the microstructure of superconductors, adding doped elements, and superimposing magnetic field strengths.

However, this is still a huge problem for the critical magnetic field of the superconductor itself.

Therefore, even if the theoretical work has been done, Xu Chuan does not dare to say that he can 100% be able to manufacture superconducting materials with high critical magnetic field strength.

In the laboratory, a computational model carrying the strong diamagnetic mechanism of KL-66 material is running on a supercomputer at NTU.

Through the underlying mathematical architecture, the supercomputer is simulating the inverted symmetry of electrons in the Fermi arc state.

In this way, the Cu atom in the high-temperature copper-carbon-silver composite superconducting material is introduced into the position of the C atom to form a stress deformation, and then a non-trivial quantum phenomenon is generated, which promotes the generation of magnetic traps.

Theoretically, it is no problem to increase the critical magnetic field of high-temperature copper-carbon-silver composites by applying this method.

But in reality, for superconductors, any small change can have a ripple effect.

Therefore, when the critical magnetic field is increased, it will inevitably cause other changes in performance, such as the upper limit of the critical current intensity, the decrease of the critical temperature, and so on.

Of course, it could also be a lift.

After all, the results of the experiment have not come out, and no one can say how this material will eventually change.

However, in Xu Chuan's view, the possibility of other superconducting properties decreasing in the direction of low performance is far greater than improving.

But as long as the reduced performance is within acceptable limits, it is sufficient.

In the laboratory, Xu Chuan looked at the real-time logs brushed out when the computing model was running for a while, then looked at Fan Pengyue and asked, "Speaking of which, how did the supercomputer you prepared at the end of last year be?" ”

Fan Pengyue: "I've been arranging someone to deal with it, and I originally planned to find IBM to make a set of supercomputers in the field of computing materials, after all, IBM is very good at this." ”

"But after discussion and communication, because of the consideration of security and confidentiality, we re-contacted Sugon in China and are discussing customization with Huake."

"At present, it is expected that the funds will be around 1 billion."

Hearing this, Xu Chuan frowned slightly: "1 billion? How is it so much? ”

10 billion yuan of funds sounds like an astronomical amount, but in the field of supercomputing, if you want to customize a high-performance supercomputer, it is far from enough.

Take the supercomputing center "Tianhe-2" built in Yangcheng ten years ago, for example, its cost reached 2.5 billion.

Although the supercomputers built by private enterprises do not pursue to surpass the national supercomputing center in terms of performance, the 1 billion yuan of funds is honestly not enough in his opinion.

Fan Pengyue said with a smile: "The total cost is more than 1 billion, and the total cost of the supercomputer customized by the Huake side is about 3.5 billion, which is almost 3.5 times the budget of 1 billion." ”

"However, our Chuanhai Materials Research Institute belongs to the scientific and technological innovation enterprises supported by the state, not only in terms of taxation and policy, but also in the construction of such large-scale scientific research equipment, there are also various subsidies to support."

"It's not just direct subsidies for scientific research, but also subsidies that can reduce the price when purchasing and building such equipment."

"So in the end, we only need to pay less than one-third of the funds to build the supercomputing center, and the rest is subsidized by the state or borne by Huake."

Xu Chuan thought about it for a while, and finally remembered that after the completion of the nuclear waste project, he was given an application document to include the newly established Chuanhai Materials Research Institute into the government.

At the time, he didn't pay much attention to it, but today he found out, is this thing so exaggerated?

The calculation model carrying the strong diamagnetic mechanism of KL-66 material has been running on the supercomputer of NTU for four days, and Xu Chuan waited in the institute for another two days before the simulation test results came out.

After receiving the data transmitted back by Nanda Supercomputer, Fan Pengyue came over as soon as possible.

Xu Chuan: "What was the result?" ”

Fan Pengyue had excitement on his face and said quickly: "Judging from the simulation results, it is theoretically successful!" The increase in the critical magnetic field is huge! ”

Xu Chuan took a deep breath, didn't continue to ask, and walked quickly to the printer room.

The printer is humming.

Soon, Xu Chuan got what he wanted, the simulation test results for the introduction of a strong diamagnetic mechanism for high-temperature copper-carbon-silver composite superconducting materials.

With the information, Xu Chuan didn't go back to his office, and directly flipped through it in the laboratory.

Data graphs and forms were constantly reflected in his pupils.

"Cu that crosses the Fermi level is far from filling into the flat band, which should theoretically be formed by the hybridization of the Cu orbital with the 2d orbital of C."

"At the bottom of the conduction band and at the top of the valence band, the Cu atoms have spin polarity after the introduction of holes, and from the results, it is interesting to see that this new material has become a bipolar magnetic semiconductor at room temperature."

Touching his chin, Xu Chuan flipped through the materials in his hand.

To his surprise, from the simulation results, after being adjusted by special nanomeans and introducing additional Cu atoms to occupy the orbit formed by the original hole effect, the properties of the copper-carbon-silver composite materials were unexpectedly changed, from the original ceramic-like materials to semiconductor-like materials.

It was something he hadn't thought of.

Although many ceramic materials are semiconductors themselves, he was really surprised that this property appeared in the high-temperature copper-carbon-silver composite materials he developed.

After all, after he researched this material in his previous life, he must have turned over the past tests and verifications many times, but he did not find that it still had this property.

It can only be said that this additional change does not know whether it will greatly affect the original superconducting properties.

As for the impact, there must be.

After all, the nature of the material has changed.

However, on the whole, most of the areas of this change are non-superconducting parts, which should not cause it to fall directly out of the field of superconducting materials.

After all, it is extremely difficult to synthesize superconductors that are absolutely pure, and there will be other phases besides the required superconducting phase.

For example, the superconducting in the copper oxide-based yttrium-barium-copper oxygen is mainly yttrium-barium-copper-oxygen 123 phase, but there are also non-superconducting 211 phases, and the superconducting phase in BSCCO is the 2223 phase and the 2212 phase, and the critical temperature of these two phases is still different.

The same is true for high-temperature copper-carbon-silver composite superconducting materials, its main superconductor is composed of copper-carbon-silver base composite structure, which is its superconducting phase, and in addition to the superconducting phase, there are various other composite structures formed by copper-carbon-silver materials.

And these composite structures are not superconducting, and it is these non-superconducting phases that are changed by the model.

The use of magnetic traps and the original superconducting phase to further enhance the critical magnetic field is an academic discourse.

To put it simply, it is to further dope the composite material on the composite material and continue to improve its performance.

This is what the characteristics of Cu atoms are used to form magnetic traps on non-superconducting phases.

Thinking about it, Xu Chuan continued to flip through the results of the simulation experiment in his hand.

After the optimization of the materials is completed, the supercomputing center of NTU calculates the superconducting properties of the optimized superconductors through first-principles calculations and material calculation models.

The data for each item is listed in the table.

Hardness, toughness, phase purity, phase proportion, hardness, plasticity and other conventional properties were the first to be reflected in his eyes.

For the ordinary properties of these materials, Xu Chuan just glanced at it briefly, and his eyes fell on the superconducting properties behind.

[Simulated critical temperature (Tc): 121.6-134.3K]

[Simulated critical magnetic field (Hc): At 152K, Hc can reach 37.4T-42.7TT, and at 77K, Hc can reach a maximum value of 47.268T. 】

[Analog critical current (Ic): It can reach 5100A/mm2 at 40T. 】

【Critical Current Density (Jc):】

[Thermal conductivity: 591.3W/m·k]

Three critical data appeared in Xu Chuan's eyes.

The critical temperature was indeed reduced, from the original 152K to the simulated 121.6K, but this effect was not large, and it was still in the cooling range of liquid nitrogen.

The key point is that the simulation data of the critical magnetic field has been increased from the original 20T to 37T, and the maximum value has reached 47T, which is almost tripled.

"Beautiful! With a critical magnetic field of 40T, this strength is definitely enough! ”

Looking at the A4 paper in his hand that still exuded residual warmth and ink fragrance, Xu Chuan's pupils were full of joy and excitement.

The huge increase in the critical magnetic field undoubtedly confirmed his previous theoretical calculations.

If this superconducting data can be replicated in the next real experiments, there is no doubt that there is hope for miniaturized controllable nuclear fusion and aerospace engines!

The critical magnetic field of 40T can easily be achieved above 60T or even higher through the superposition of magnetic fields.

This level of magnetic field strength, whether it is for the confinement of high-temperature plasma or the construction of accelerated magnetic fields, can be greatly improved on the existing basis.

PS: There is another chapter in the evening, but it should be too late before 12 o'clock, and you have to check a little information and ask for a monthly pass.

PY a little

The boss of the nine groups, the first Naruto fandom (cough, he calls himself the most rubbish and wasteful blood vomiting masterpiece in the nine groups!) It's actually a big guy! ）