Great Power Technology

After leaving the ward where Qian Lixun was resting, Ye Zhou immediately notified Chen Hao to prepare to receive the technical documents provided by Chou Guo. At the same time, he also went to the core target room of the Shenguang No. 4 device and restarted the temporarily suspended pre-ignition test. Work.

"Has the flaw detection been completed?"

Ye Zhou looked at the test record document in his hand and asked the staff on the side.

"It has been completed, the material performed well, and the welding segregation damage of ODS steel is controllable - most of the structure was manufactured by injection forming, with few welding points and little impact."

Ye Zhou nodded slightly. In fact, compared to the other core difficulties, Ye Zhou was most worried about welding problems without applying the technology provided by the simulator.

Because ODS technology is used on a large scale in the material technology of the first wall, the strength, creep resistance, and radiation resistance of the material are greatly improved through the small ODS particles dispersed in the alloy matrix.

However, the problem arises, that is, it is quite difficult to weld this material.

If the ordinary welding method is used to partially melt and then re-solidify, the ODS phase will be severely segregated under the action of gravity and solid-liquid interfacial tension, making the welded part the weakest point in the structure.

"What welding method was used?"

"A small part uses laser welding, and most uses explosion welding. The problems with laser welding are not big. The instantaneous temperature of current welding equipment is very high, and the welding gap is extremely small, which can be completely controlled within the strength requirements. "

The so-called explosive welding refers to a processing technology that uses the energy of explosive explosion to weld two heterogeneous metal plates together. This technology is essentially a pressure welding. The pressure and temperature inside the material do not change much. It uses The pure solid phase sintering mechanism ensures the stability of the ODS phase inside the material.

However, in the long run, the cost of this welding method is too high, and the success rate and yield rate are also low. If you want to spread fusion devices on a large scale in the future, you will definitely have to go to the path of integrated casting.

After confirming that there was no problem with the welding technology, Ye Zhou did not check the numerous inspection items one by one. This was originally a systematic project, and everyone was responsible for his own part. As long as the responsible person thought there was no problem, then there was no problem.

——

In other words, we can only think that there is no problem with it.

Personal knowledge plays a limited role in it. As long as the key nodes are controlled, the success rate of the experiment can basically be guaranteed.

And this is actually the reason why Qian Lixun can let go decisively at this time. If this project is still in a state where he has to do it now, it is estimated that he will have to complete the entire testing process even if he risks his life.

After browsing in silence for a moment, Ye Zhou asked directly:

"Were any high-risk points found during the inspection? Are there any components that performed poorly?"

The staff member opposite shook his head, but nodded immediately.

"It stands to reason that judging from our current test results, there are no high-risk points, but there is a problem. Everyone is worried about the performance of the first wall material."

"Is it because there has been no irradiation experiment?"

Ye Zhou asked with a frown.

In fact, according to the normal process, the ANR-HT material as the first wall material should undergo a full range of irradiation experiments, but the difficulty of such experiments is really too great.

The radiation faced by fusion reactors mainly includes three parts: neutron irradiation, ion irradiation and electron irradiation. Among them, the experimental conditions for neutron irradiation are the most demanding. Judging from the current technology, humans simply do not have a suitable experimental place. and equipment, the only thing that can be done is to conduct experiments with fission reactors.

This experiment requires long-term irradiation to reduce the DPA - that is, the atomic dislocation rate caused by irradiation. After the irradiation is completed, you have to find a place to place it for a period of time to eliminate the radiation dose. Otherwise, the exposed experimenters will be directly exposed to high Under such a high dose of radiation, you are literally exchanging your own life for the result.

In addition to neutron radiation, ion radiation and electron radiation are much safer, but high-energy ions are difficult to conduct macroscopic tests, and electron irradiation has problems with high-voltage electron microscopy, which is time-consuming and troublesome to operate.

All in all, considering these problems, Ye Zhou's final order was to skip large-scale irradiation experiments and only conduct a few key metal phase tests. This is probably why the staff did not have high confidence in the materials.

Hearing Ye Zhou's question, the staff member opposite nodded and replied:

"That is indeed the case. Leader, you also know that most of these researchers accept death and are uneasy if they can't see the data."

"But this does not affect the overall experimental progress. We just want to know, is this material really reliable?"

Ye Zhou didn't know how to answer this question for a moment. From his own perspective, he could pat his chest and guarantee that the materials were absolutely fine, but how to convince the staff?

Although the previously provided document contains a series of test data, those data have not really been through the hands of any researcher and are not experiments conducted by themselves. They will naturally remain somewhat skeptical.

This is probably the truth-seeking spirit prevalent in scientific research - it seems a bit difficult to understand, but it is precisely under this rigorous spirit that technology can continue to develop forward.

After thinking for a moment, he answered:

"We can discuss the issue of irradiation testing later. The experiment can be done, but the problem is that our time is too tight, so we can only postpone it."

“It’s normal to question the existence, but there’s definitely nothing wrong with the material itself, and you can rest assured.”

"The most important thing now is to achieve ignition first. If you encounter any resistance during advancement, you can tell me and I will find a solution."

The staff member nodded and replied:

"Understood, then we will continue to follow the road signs and plan to start ignition in five days."

5 days. If we follow the current requirements for target pellet manufacturing processes, after acquiring Chou Country’s technology and using existing resources, it will probably take exactly 5 days to manufacture new target pellets. This does give them a chance. .

An opportunity to solve the problem once and for all.

"Has the target pill been installed?"

Ye Zhou asked.

"Not yet. The target pellet black cavity test is put at the end, so it hasn't been installed yet."

"That's good. In a few days, we may use a new target pellet. Then we will test it first. If the result is OK, then we will replace the current one with the new target pellet."

"New target pill?"

The staff member repeated in surprise. After a pause, he continued to ask:

"Leader, where did the new target pill come from?"

"It was given by the Ugly people. In this regard, their technology does have advantages."

"Ugly Chinese? As a gift? Why?"

The other party asked in shock.

Ye Zhou smiled and replied:

"Who knows? Maybe they suddenly woke up and found that being a dog licker was the only way out."