Great Country Academician

After dealing with the affairs of the Planck Institute of Plasma Physics, Xu Chuan returned to the Chuanhai Institute of Materials and joined the work of Academician Zhang Pingxiang. The two discussed in-depth understanding and research on optimizing high-temperature copper-carbon-silver composite superconductors Materials, methods and routes.

Coupled with the assistance of other researchers in the research institute, basically every time a new idea and route emerges, someone will immediately conduct experiments to verify and obtain results.

Surrounding him and Zhang Pingxiang, the entire Chuanhai Materials Research Institute is fully engaged in researching the optimization route of superconducting materials.

The days passed like this.

Time flies, and it will be the end of the year, and in ten days, it will be the Lunar New Year.

However, the efforts of more than a month were not without results.

On the road of graphene whisker (fiber) toughening, he and Zhang Pingxiang have jointly discussed and repeated experiments, and finally achieved some phased results.

In the laboratory, Xu Chuan was wearing a white coat, holding a glass vessel with a small film in his wide palm.

This is a product optimized by him and academician Zhang Pingxiang through the use of whisker (fiber) toughening technology in recent days.

First, he observed carefully with the naked eye. The silver-gray color of the thin film in the container does not seem to be much different from the high-temperature copper-carbon-silver composite superconducting material he studied at the beginning.

However, the material of graphene itself is quite transparent, and the light transmittance can reach more than 97.7%. If the number of layers is small, it is basically invisible when attached to the material.

"Is this the latest finished product? How is the performance after optimization? Have you tested it?"

Holding the film, Xu Chuan looked at it carefully for a while and then raised his head and asked.

On the side, Academician Zhang Pingxiang said: "Not ideal, but the effect is much better than that of doped zirconia."

"The one in your hand is currently the best product. At the same level of thickness, the toughness range can reach the level of mobile phone film combined with polyester substrate + tempered glass. It can withstand impact energy of about 2.5J/m3, and the elastic modulus can reach 128.78GPa”

"At the same time, its superconducting performance has decreased a little, which may be related to the instability of laboratory processing. According to statistics, the Tc critical temperature and critical magnetic field have both decreased by about 10% to 15%. The current and critical current densities don't change very much."

"The thermal conductivity has been improved a lot. The piece in your hand has been tested. The thermal conductivity of the core material was about 570W/m·k before, but the thermal conductivity after toughening has increased to about 987W/m·k. almost doubled."

"This may be related to the toughened graphene film material. As you know, graphene itself has a very high thermal conductivity."

Zhang Pingxiang briefly introduced this newly researched product, Xu Chuan thought for a while, and said: "It is acceptable to reduce the Tc critical temperature and critical magnetic field by 15%. Some surprises."

"Superconducting magnets are the key to magnetic confinement controllable nuclear fusion technology. Whether it is the technical route of tokamak or stellarator, a strong magnetic field is required to confine the plasma of hundreds of millions of degrees.

"The increase in thermal conductivity helps the cooling speed of liquid nitrogen and can better maintain stability."

"Compared to before the whisker toughening, it is already good. Do you have other test items in your hands?"

Zhang Pingxiang nodded and said, "Yes, yes."

Hearing this, Xu Chuan reached out and took out the film from the glass container, pinched the two sharp corners, and slowly applied pressure.

The film in the finger is not very thick, similar to the tempered glass protective film of a mobile phone, maybe a little thinner. Under the pressure of his fingers, the membrane began to deform slightly.

As the strength increased, the arc of deformation became larger and larger, and finally, with a slight 'click' sound, the film pinched in the fingers broke into two halves.

However, the shattered film did not splash out like glass. Although it was indeed broken, there was another layer of extremely transparent substance sticking to it at the fracture, just like a broken root.

This is the graphene material optimized on high-temperature copper-carbon-silver composite superconducting materials using whisker (fiber) toughening and composite technology.

Generally speaking, there are two types of graphene toughened on superconducting materials. One is to use whisker (fiber) toughening technology to organically combine graphene and superconducting materials through the interface to improve the interface and matrix. of bonding strength.

The other layer is the graphene film layer adhered to one side, which can also play some toughening effect and provide a layer of protection.

Xu Chuan held a corner of the fragment and observed it in front of his eyes. Although the transparency of graphene is extremely high, it can still be vaguely seen adhering to the superconducting material.

"The folding arc can reach about 20 degrees, which is a huge improvement compared to before no optimization. At least it won't break if it is simply dropped or touched by a violent vibration."

Looking at the superconducting thin film in front of him, Xu Chuan thought briefly and then said.

Although he hasn't seen the specific detailed test data yet, it is enough for him to understand some basic things through visual inspection and simple stress test.

If it can be mass-produced and maintained, this level of superconducting material can already be applied to some electrical equipment.

Zhang Pingxiang nodded approvingly, and said: "From this aspect, the toughness of the optimized material is indeed good, and there is no big problem even when used in electromagnetic weapons and particle weapons."

"However, the disadvantage lies in the difficulty of processing. At present, it is very troublesome to replicate in the laboratory, let alone industrial production."

Hearing this, Xu Chuan smiled and said, "It doesn't matter. For academic research, we don't need to consider such things as cost."

"How to reduce manufacturing costs and how to reduce the difficulty of productization are all things that the industry needs to consider."

"As for what's expensive, there's no need to think about it."

"This is a product that can be turned into a military industry. I'm afraid it can only be supplied to a small number of domestic manufacturers for the time being."

"Currently, products of this level should not be exported. Even if they are nominally sold to the Institute of Controlled Nuclear Fusion or other manufacturers, they may be directly intercepted by other countries."

"Of course, there will be no shortage of orders, and it can bring us great profits."

"Academician Zhang, you have worked hard during this time. In return, the profit from the sale of the optimized high-temperature copper-carbon-silver composite superconducting material will be distributed to you at a rate of 10%. I have already drawn up the relevant contract." , Mr. Zhang, just go and sign later."

Although this Academician Zhang applied to stay and help the Chuanhai Materials Research Institute on his own initiative, it is impossible for him not to express something.

Things like money are just numbers to him, but the communication with Academician Zhang during this period has benefited him a lot in the field of materials.

A world-class material academician has done countless experiments over the past few decades, and the accumulated experience data and some ideas and theories in his mind cannot be compared even if he is reborn as a human being in two lifetimes.

The communication during this period brought him a lot of knowledge and ideas, which made him feel like he had returned to the campus to absorb knowledge.

For this alone, Xu Chuan felt it was worth it.

Hearing this, Zhang Pingxiang was taken aback for a moment, he really didn't expect Xu Chuan to give him the dividends of this material.

After reacting, he quickly refused: "This is not acceptable, I can't take it."

"The idea of ​​graphene whisker (fiber) toughening was proposed by you, and the laboratory is also yours. I just did some experiments according to your ideas and requirements, but I am not eligible for this dividend."

Ten percent, this doesn't sound like much, but for high-temperature copper-carbon-silver composite superconducting materials, just to meet domestic demand, there are at least tens of billions or even tens of billions of superconducting orders.

Civilian and commercial use are certainly not yet available. This material should first satisfy military and top-level technological applications.

As for the application of military and top-level technology, the demand and profit are actually quite large.

Leaving aside the production costs, the annual net profit is at least a few billion. If he took one-tenth of it, it would be several hundred million, which is too exaggerated.

What's more, he really didn't feel that he played a key role in this optimization process.

His previous ideas and theories, such as zirconia doping, failed. Graphene whisker (fiber) toughening is this idea and theory, not his.

What's more, he also learned the principle of material calculation mathematical model and superconducting mechanism theory paper of high temperature superconducting materials in the laboratory. Putting these things outside is a secret among secrets. Normally, it is basically impossible for outsiders to see it, if the person in front of him does not make it public.

Based on these two points alone, Zhang Pingxiang felt that his two-month research and experimental work at the Chuanhai Institute of Materials was worthwhile.

As for the 10% dividend, he couldn't even take it.

But in the end, he still failed to tell Xu Chuan and accepted some dividends.

Although the high-temperature copper-carbon-silver composite material has been optimized, it cannot be widely used in all walks of life, but some fields that could not be applied before can now be tried.

For example, the most anticipated short-distance particle acceleration and electromagnetic acceleration above.

As for the effect, it is necessary to wait until these products are manufactured and tested in detail.

Xu Chuan didn't care about these. From the beginning to the end, he always positioned himself as a scholar and scientific researcher.

Researching science and technology is his goal, but how to use these things after they are manufactured, although he also cares about them, is no longer the focus.

Just like now, his goal is always to develop around the route of controllable nuclear fusion.

Whether it is high-temperature copper-carbon-silver composite superconducting materials, or purchasing ASDEX devices from the Planck Institute for Plasma Physics, or even cutting off orders from CERN, it is all for controllable nuclear fusion.

Compared with most scholars at home and abroad, he who has been reborn once is actually more pure; or in other words, his ideal is farther.

He hopes to go out of the earth, visit other planets, and hope to explore and understand the mysteries of the universe.

If possible, he even hopes to use gravitons in his lifetime, and then try to open wormholes or passages through time and space.

Maybe he was already in his seventies and eighties at that time, and by that time, it would not matter if he took a spaceship to an alien planet to explore, even if he was buried in an alien planet.

If it can be done, for a person like him, this is the best ending.

PS: The first update is delivered, please ask for a monthly ticket, there will be another update in the evening!