"The irradiation temperature is only 680K, the fast neutron flux is obviously not enough, and the energy carried by a single neutron only reaches the order of 1 MeV. Don't be too quick to be happy. Our goal is the structural materials of the fusion reactor, and this can only It’s a phased achievement.”
Although I don’t mind messing with Lao Zhou’s equipment a few more times, I still have to consider the basic method no matter how much I mess with.
At least, that's the case in the low energy region...
LPC is the abbreviation of porous carbon material. The first-generation product is followed by a number 1. Basically, this is the least confusing nomenclature, but it is also the least creative nomenclature.
After all, I am a third-year student now, and my body is still not as good as it was when I was just studying for a Ph.D.
Yang Xu: "Okay, as long as you are happy... By the way, if you plan to test it in the experimental pile, are you going to go to the southwest again?"
As far as the test results are concerned, these samples are basically consistent with his calculations.
At this point, Lu Zhou paused for a moment and teased in a joking tone.
If they were all named after people, his two-character name might not be enough, and I'm afraid that in the end even he would not be able to remember which one was which.
"If you have nothing else to do, you should go back early today. Looking at you like this, you can hardly stand still when walking."
Although there are considerable discrepancies between many numerical values and the results he simulated through computational materials science methods, the errors are within an acceptable range.
Yang Xu coughed dryly, covering up his embarrassment and said: "It's nothing, it's a good name. I just think... this naming rule is quite your style."
"good… "
…
Injecting nuclear fuel into the experimental reactor is no joke. Although the fusion reaction will stop at any time, if the plasma with hundreds of millions of degrees leaks out, it will be a serious accident.
"Don't leave the naming to me. Just refer to the opinions of Hou Jinli's research team and you can make your own decision."
"... Just call it LPC-1."
Hou Jinli immediately nodded and said: "Okay!"
Upon hearing this unexpected news, Lu Zhou raised his eyebrows with interest: "Oh, really? Write a report and give it to me in two days."
And its anisotropy in heat transfer is needless to say.
Judging from these excellent properties alone, even if this material is not used in fusion reactors, it still has high application prospects in partial fission reactors.
As soon as he heard that he was asked to choose a name, Lu Zhou was immediately troubled and said with a headache.
Yang Xu: "..."
Five groups of materials were collected on the DPA production rates in different energy regions in different irradiation scenarios such as pressurized water-cooled reactors (PWR) and light water reactors (BWR).
Compared to Yang Xu's excitement, Lu Zhou's reaction was quite calm.
Although the results of this phased research are quite astonishing.
Seeing Yang Xu's speechless expression, Lu Zhou was slightly stunned.
"What's more, this is a moment to witness history, and we might have to use it in textbooks in the future."
After reading the information from beginning to end, he thought for a moment and then spoke.
Unless necessary experimental data is collected, or it is a confident attempt, it is far better to try it in the fission reactor first than to test it directly in the experimental reactor.
I always feel that he will have many more research results in the future.
Given the difficulty of laboratory preparation of ceramic-based graphene composites, it is not easy to complete these tasks within a week.
After all, the Lindhard-Robinson model he referred to is not a particularly perfect phenomenological model. If the data matches perfectly, it would be called abnormal.
Five groups of samples were compared horizontally. As the neutron fluence rate increased, the fourth group of samples was the best in terms of neutron permeability and self-healing properties of Frenkel defect pairs.
Lu Zhou shook his head: "HL-2A's condition has reached its limit. Judging from the results of the last experiment, it will only be enough for them to repair until the end of the year. I won't force them this time."
After all, whether it is a tokamak or a stellarator, dozens of billions of devices are not blown by strong winds. I don’t know how long the next days will be, so I’d better use them sparingly.
At least in the low-energy region, the performance of this ceramic-based graphene composite material has completely surpassed the Al, Mg, and Zr alloys commonly used as experimental reactor cladding materials.
"In the experiment, we simplified the original experimental steps and tried to find a simpler synthesis method!"
Although Lu Zhou had been prepared for Hou Jinli's failure to complete the task before, he still lived up to his expectations.
Lu Zhou smiled: "Maybe, but I still prefer to wait until everything is settled before tasting the champagne of victory."
The only thing that can simulate the fusion reactor environment is the fusion reactor itself.
After waiting patiently for a while, the test results were quickly sent over.
Putting a piece of information on Lu Zhou's desk, Yang Xu said excitedly, "The results are perfect!"
As Yang Xu said, the experimental results are quite perfect.
After thinking carefully about this serious question for a moment, Lu Zhou's eyes suddenly lit up and he spoke.
"The test results from Daya Bay are out."
Although Yang Xu's expression had revealed all the contents of the test results, Lu Zhou immediately reached out to take the information and read it eagerly.
"How can that be done?" Yang Xu said with a smile, "According to convention, the naming of research results is decided by the person in charge of the project. If you really don't know how, you can just put the name on it."
Hearing Yang Xu's complaint, Lu Zhou probably guessed what he was thinking, so he smiled and said, "It doesn't matter what the material is called, what matters is its function."
"It would be a shame to leave it to someone else's equipment to witness."
Five sets of samples, each set of four pieces.
"What's wrong?"
Yang Xu smiled and said: "You are too harsh when you say that. Even if it is a staged result, this result is not small. I think there is nothing wrong with being happy."
Only if the condition is good will he consider testing it in an experimental pile.
In short, with these samples, Daya Bay should be able to catch up.
As a control, austenitic steel is commonly used as a structural material in fusion devices.
Yang Xu: "So...does it still have to be tested in the fusion device?"
Before testing the neutron radiation resistance in the high-energy region, Lu Zhou needed to diagnose the performance of these five groups of samples in the neutron irradiation environment in the relatively low-energy region.
Upon hearing this suggestion, Lu Zhou coughed lightly and said, "Forget it about the name. I'll think about it again."
Next, we have to wait for the report from Daya Bay.
As planned, Lu Zhou sent these five sets of samples to Daya Bay through special logistics channels.
Hou Jinli glanced at Lu Zhou gratefully and did not refuse.
Especially in the PWR environment, when the irradiation temperature is 680K and the fast neutron flux reaches 4.2×1020/cm2, the DPA generation rate is less than 10% of the austenitic steel in the control group!
Lu Zhou nodded: "For now, this is the only way."
There is no doubt that they succeeded!
After a week of liver damage, his body really couldn't hold it anymore...
After reading several XRD test reports in his hand, Lu Zhou put the information down for the time being.
Yang Xu: "Let's not talk about the fusion reactor. What are you going to name this material of ours? Now that Sample No. 4 has been determined as the optimal stage result, we can't still call it by a number."
It is too casual to name such an important research result.
In radioactive detection, the dpa index is usually used to express the number of dislocations of each atom.
Looking at Lu Zhou who was flipping through the report, Hou Jinli took a deep breath and continued.