Chapter 406: The First Wall
"Fight for energy, fight for China!"
Why don't men take Wu Gou and take over the fifty states of Guanshan? Which Chinese son and daughter doesn't have passion in their hearts? Wu Tong's final encouragement immediately aroused the youthful passion of the team members in the conference room. Almost as soon as Wu Tong finished speaking, everyone spoke up at the same time, with one mind and shouted in unison.
"Boss Wu, you tell us where to go and what to do, and we will charge forward and do it!" Ruan Chengxu responded immediately and made the promise. He never thought that after only one or two years of graduation, he had grown to the point where he could be involved in the development of such a large project. All this was thanks to the guidance of his junior sister Wu Tong.
Therefore, no matter what decision Wu Tong made, he would support him immediately. In formal occasions, Ruan Chengxu also addressed Wu Tong with a respectful title, and never put himself in a special position because of his relationship with Wu Tong as a fellow disciple.
"Yes, that's it, Mr. Wu. Just tell us what to do, and we'll all follow you and go all out!" Nie Qiyun started, and the others expressed their opinions one by one. Isn't it just controlled nuclear fusion? In front of their Mr. Wu, they believed that there would be no problem. Maybe in the future they can also study flying saucers, interstellar fortresses... those infinite fantasies in science fiction.
Wu Tong's words, "Let your imagination run wild", really let the participants' minds fly. Hehe, Mr. Wu is their guiding light and their confidence. With Mr. Wu around, they can really think of things that ordinary people dare not think of.
They are participating in a great research and development. If they succeed, their country and their people will benefit from it. The value of this cannot be compared with any money or anything else. Just thinking about it makes them full of passion and instantly filled with the energy to move forward.
"Thank you for your trust and support. Controlled nuclear fusion is a huge project that cannot be completed overnight. Don't get too excited. Let's gather our energy and spirit and overcome the difficulties one by one. Let's get back to the topic and start from the basics and move on to the next topic. Discussion on the research and development of the first wall high temperature resistant material!"
Wu Tong is grateful for the trust and support from the team. With such a good start, Wu Tong started the next topic, which is also their recent research and development goal. In the past, Wu Tong would directly start from scratch until a complete technology is available, and then the team would conduct auxiliary experiments to verify it.
Although this process is a relatively fast model, she is often the only one who has to fight on the front line. Her thoughts, no matter how comprehensive they are, are ultimately one-sided and limited.
From the research and development of lithium-sulfur batteries, Wu Tong conducted a thorough investigation of the team's heuristic training and discovered the team's capabilities. He also felt the team's rapid growth and the inspiration and help of everyone adding fuel to the fire.
Therefore, this time, Wu Tong still wants to continue this excellent model and is ready to continue to lead the team to participate collectively, gather everyone's imagination, and more quickly find out the best direction for them to move forward.
"Nuclear fusion reactions need to reach at least one million degrees Celsius, and normal and stable operation needs to reach more than 100 million degrees Celsius. At such high temperatures, no solid material on Earth is known to be able to withstand it. Any material will turn into gaseous plasma at this temperature.
Therefore, the premise of achieving nuclear fusion is that our first wall material research and development is crucial. We need to develop a material that can withstand hundreds of millions of degrees of high temperature and withstand plasma impact as a container. Such a container must not only allow nuclear fusion to continue to operate, but also be able to convert the energy of nuclear fusion into electrical energy, and also be able to continue to withstand the high temperature generated by the nuclear fusion reaction! "
After cooperating in the last new energy research and development project, everyone was familiar with this discussion mode, and they immediately spoke actively about the nuclear fusion knowledge they knew.
"The sun uses its powerful gravity to ignite and confine nuclear fusion reactions. The principle of the stellarator device is to imitate a mini sun. Of course, we are imitating it, not building it for real.
In order to maintain nuclear fusion, even a Jupiter with a mass more than 300 times that of the Earth cannot achieve it, it must be hundreds of times the mass of Jupiter. So living on Earth, we are all Earthlings, and it is impossible to create an artificial little sun on Earth that is maintained by gravity.
We have to exclude gravity. The current mainstream is to use a strong magnetic field to replace gravity to control the plasma of the fusion reaction! Our superconducting materials have laid a solid foundation for us to achieve this control. Previously, the most high-temperature resistant material in the world should be the tantalum hafnium carbide alloy Ta4HfC5, which can withstand temperatures of nearly 4,000 degrees Celsius! "
"But this is still not enough. The fusion reaction requires the first wall to be able to withstand a starting high temperature of 100 million degrees Celsius and continue to operate!" Four thousand degrees is basically enough for general aerospace needs, including the carbon fiber high-temperature resistant materials and other excellent high-temperature resistant materials they developed previously. At this level, they are not enough.
"Yes, the sun has solar wind and thermal radiation. A controllable nuclear fusion device will release thermal radiation and high-temperature particle wind. The biggest difference between nuclear fusion and nuclear fission is that nuclear fusion can only be completed under high temperature and pressure, while nuclear fission does not require such high temperatures and can even be carried out at very low temperatures. Therefore, the performance of traditional nuclear power plant equipment is still different from that of nuclear fusion reactors.
The first wall is the inner wall of the equipment that needs to directly face the thermal radiation of the nuclear reactor and the high-temperature particle wind. The thermal radiation faced by the first wall is not simple infrared rays, but high-energy rays mainly composed of X-rays. These rays can easily destroy chemical bonds, thereby destroying the structure of solid materials and causing damage to the first wall.
This is one of the difficulties we have to consider when developing the first wall material. Secondly, as Mr. Wu said, in neutron impact, in artificial nuclear fusion equipment, no matter how strong the magnetism is, some plasma will escape from the magnetic confinement range. Once these particle flows hit the first wall, they will cause some corrosion to the first wall.
The nuclear fusion reaction will use deuterium-tritium nuclear fusion. The deuterium-tritium reaction will produce neutrons. These neutrons are not controlled by the magnetic field and can hit the first wall at will. When neutrons hit the first wall, there is a certain chance that they will react with the atoms in the first wall. Such a nuclear reaction will turn one atom into another atom. As the atoms react,
The interior of the first wall will be damaged, and the originally designed structural parameters will gradually no longer meet the design requirements. It is even possible that bubbles or cracks will form inside, further destroying the material structure. This will also cause damage to the first wall! "
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