Chapter 145: SHS Self-Spreading Method, New Materials!

After returning to his residence, Chen Nian began to preview the course content of advanced functional materials according to the plan, and after 4 hours, the number of source points increased by 0.1 points again, and the number of source points reached 4.4.

At 12 o'clock, he went to bed on time to rest, and at 6 o'clock the next day, he got up on time to wash and read, and the days passed smoothly.

After a week, efficient learning brought him 1.5 points of source points, and he was only 0.8 points away from analyzing high-speed rail technology.

It will only take three or four days at most to complete this significant analysis.

It just so happened that Zhang Shuguang had dragged the four major suppliers for more than a month, almost wearing up all their patience.

This is the time when the emotional tension of the negotiation teams on both sides is at the limit, and if they can successfully come up with overwhelming hole cards, then everything will go extremely easily.

Thinking of this, a satisfied smile appeared on Chen Nian's face.

It seems that after having the "Task Manager", my planning is indeed much stronger.

Although now it is just a simple tool that stays on paper, the effect is obvious.

In the future, we have to find a way to move it to electronic devices -—— make it into a small program to improve the ease of use.

It's a pity that the system in my mind doesn't support editing, otherwise, editing directly in the system can ensure both security and convenience.

After glancing at the time, Chen Nian left his residence, intending to go to his first physical education class of the semester.

Although he was very reluctant, looking at Chen Guo's eager eyes, he really couldn't refuse

It's a good thing they didn't choose a soccer basketball or anything like that.

Otherwise, it would be a lot of work

After arriving at the indoor gymnasium where he gathered, Chen Nian saw two familiar figures at a glance.

Li Xiang and Qiao Mai.

The two were standing together and chatting, and they seemed to finally get a little acquainted with each other.

But the first time Chen Nian appeared, Qiao Mai's eyes immediately turned around.

"Hey, Chen Nian! Long time no see! ”

It's been a long time since I saw it.

Qiao Mai's schedule is staggered with Chen Nian and Li Xiang, and only by chance will they meet in the cafeteria to have a meal together.

Although they have known each other for a long time, if you really want to talk about it, the opportunities for the two to communicate face-to-face can be said to be only a handful.

After a summer vacation, it's really a little strange to meet again.

"Long time no see."

Chen Nian smiled and stepped forward to say hello, thinking to himself, he didn't know if she could bring any more surprises this time.

It's just three things, if it's really that mysterious, Chen Nian still doesn't mind using a little power in his hand to give himself a little buff blessing.

"I heard you're in a special class? Congratulations! ”

Qiao Mai's face was very sincere, there was envy in it, but there was absolutely no jealousy.

"Thank you, thank you, it's nothing, it's just that some classes have been advanced."

"That's great! It's a pity that I didn't make it, or I could still be a classmate with you once. ”

Chen Nian smiled awkwardly, and secretly said that it is too normal that you did not choose.

This thing was originally a radish gang, and the few students who were really selected had already been decided, although it seemed to be an open selection, in fact, the result would not change anything.

"It's okay, I heard from the leader, this special class is also experimental, that is, the class schedule has changed, the teachers have not changed much, there is no need to pursue."

Qiao Mai nodded thoughtfully, sighed and said:

"Harm is a face. I went out and told others that I graduated from the special class of Western University of Technology, and I heard how face-saving it was. ”

"Forget it, don't talk about this-—— hey, what are you busy with during the holidays?"

Qiao Mai turned his body slightly towards the middle between Chen Nian and Li Xiang, as if he didn't want Li Xiang to feel left out.

Seeing this scene, the corners of Chen Nian's mouth moved slightly, and he didn't answer immediately.

"Well, I. It's not just playing at home, previewing the classes for the new semester, and finding some part-time jobs. ”

Chen Nian couldn't help but roll his eyes covertly.

To put it mildly, your part-time job is not easy.

What Li Xiang is doing is unknown to others, but Chen Nian is a clear man.

In the matter of fooling and manipulating public opinion, Li Xiang has shown a very high talent, whether it is the previous negotiations at the Madasic factory or the recent EC-130H incident, he actually participated.

If he wasn't still in school, his superiors would have given him a direct regular.

"You're good, Chen Nian?"

"I study. I went out for a trip some time ago, and then I didn't go home, so I previewed some special classes in advance. What about you? ”

Chen Nian asked expectantly.

He was hoping that Qiao Mai could say something enlightening to make him break through again, but the result was a little disappointing for him.

"Almost, I didn't go back, I followed the school's project to study at the Electromechanical Institute."

When he said this, Chen Nian keenly noticed that Qiao Mai's expression was a little strange, so he asked:

"What's wrong? Not going well? ”

"Well, I can't say that it doesn't go well, it's harmful, it's nothing."

"Didn't I tell you that I was doing a hydraulic, bearing project, I prepared a new design with my brother, which was quite advanced, there is no precedent in China, and the benchmark is the alignment system of the lithography machine."

"Air bearings, have you heard of them? What we do is optimize the design side of the project. ”

"As a result, I went to the electromechanical institute, and guess what, it has already been made."

"It's a strange feeling, it's like living in someone's shadow all the time."

Chen Nian is embarrassed, to put it bluntly, this matter has nothing to do with him.

Air bearings were originally one of the results of the fission of the technology he provided before, and it is normal for them to develop quickly when the principles and foundations are perfect.

But unexpectedly, Qiao Mai's project was cut off directly

He didn't know what to say, so he had to speak:

"It's okay, you and your brother are so good, there must be other projects in the future."

"That's right, my brother is ready to start making a suspension system-—— the steering suspension of high-speed rail, which is quite promising."

“.”

If you believe me, you'd better not do it in this direction."

What the hell!

Do you want to be charged to death?

In the high-speed rail core traction transmission technology package that you will analyze in the next step, it includes the high-speed bogie.

"Why?"

Qiao Mai asked suspiciously.

"Haven't we been negotiating with foreign countries lately? Technology introduction is going to be done soon, and if you are engaged in this direction now, it is estimated that it will be covered again, which is not cost-effective. ”

Chen Nian replied solemnly.

"That's okay too."

Hearing his words, Qiao Mai Zhengse said:

"It's one thing to import someone else's technology, it's another thing to digest it into our own."

"There is a difference between borrowing someone else's sword and building your own sword."

"Besides, we don't plan to make any big results, we just use this direction to consolidate what we have learned."

"Don't worry, we know it."

Chen Nian sighed.

I really can't refute that.

If you think about it carefully, Qiao Mai is definitely not the only one who "lives in the shadow of others".

In China, countless researchers are covered in their own shadows.

They are painstakingly exploring the frontier direction, but perhaps one day, they will be cut off by one of their own analytical results.

But even so, they never gave up, but continued to challenge new directions.

If Chen Nian is a giant beast that opens the mountain, then they are like worker ants one by one, although their strength is not great, but they have gradually built a spectacular ant nest.

In this regard, Chen Nian only admires.

——

But then again, if you can save unnecessary repetitive work, you still have to save it.

So, he spoke:

"Anyway, you better think about it."

"I have a direction, I can try it."

"You know, there is an important hydraulic system on the aircraft carrier, that is, the hydraulic system of the blocking cable, and there is still relatively little research in China."

Soon, the teacher blew the whistle for everyone to gather, and after a physical education class, Chen Nian really didn't get any inspiration from Qiao Mai.

It seems that the previous two times were coincidences, and Qiao Mai did not have any special "luck" attributes.

However, Chen Nian was not disappointed.

After all, whether it is study or scientific research, it is a thing that must be taken step by step and down-to-earth, if it is really so easy to be opportunistic, will the development of science and technology be so difficult?

After the physical education class, the time had reached more than 5 o'clock, the three of them went to the cafeteria to eat together, there was nothing to say all the way, Chen Nian planned to go back to his residence and continue to fight advanced functional materials, but after thinking about it, he finished the silicon material metallurgy course, but many of the practical details mentioned in it have not been verified.

So, he simply called a car and went in the direction of the West Materials Research Institute.

His idea was simple, in fact, it was just to touch the equipment and verify what he had learned

At this moment, in the Institute of Western Materials.

"Still not working? Adjust the relative density to about 55% and try again? ”

"It's useless, I've already tested the relative density of 57% just now, and there's no need to test it repeatedly in the same range."

"What's the problem? Initial temperature? Raw material particle size? Heating rate? ”

"I don't know. I don't understand. Are the results of the differential thermal analysis out? ”

"Came out, but it didn't work, I don't see the problem"

Several researchers whispered around the samples that failed in trial production, while Guo Qi's face couldn't help but show a look of disappointment.

Of course, he wasn't disappointed in his young people, nor was he disappointed in materials science, he was disappointed that his luck was so bad!

This time, they plan to trial produce molybdenum disilicide, which is a high-temperature antioxidant coating widely used in the aviation field, which is generally used in the sealing of turbine engine components, burners, tail nozzles, as well as electric heating elements and automobile spark plugs.

In short, it is very versatile and useful.

But now, there is no mature manufacturing method in China.

Generally speaking, the manufacture of molybdenum disilicide is made using SHS technology, that is, self-propagating high-temperature synthesis technology.

However, the problem is that the exploration of this technology is still relatively limited, and the understanding of the influencing factors and synthesis mechanism is not thorough.

Therefore, what they can do is to further explore on the basis of several existing understandings.

For example, an increase in the relative density of reactants can lead to an increase in reaction temperature and self-propagation velocity.

For example, the coarseness of the powder affects the reaction process.

But we don't know exactly what kind of density, what kind of thickness, and what kind of initial temperature to use.

As a result, the progress of trial production has been stuck in the stage of trial and error, and it is impossible to move forward.

Since the establishment of the project, the project has been stuck for 6 months, and so far, there is really no result.

Although this is the normal rhythm of materials science research, watching other projects blossom one by one, Guo Qi can't help but feel a little unwilling in his heart.

Damn, I won't be engaged in materials in the next life.

It's too basic

It's hard and thankless, no matter how nice it sounds, if you can't produce results, who will remember you.

Thinking of this, Guo Qi sighed, walked up to his students, and said:

"Okay, if it doesn't work today, continue tomorrow, this thing is a piece of luck."

"Oh yes, tomorrow you will have a day off, whoever is okay go up the mountain to see where there is a temple, go and ask for it."

Hearing Guo Qi's words, a helpless smile appeared on everyone's faces.

They all knew that Guo Qi was joking, but they could also see the sadness behind the joke.

Do you still go to the temple to beg?

It sounds good, who do you ask to go to the temple?

Taishang Laojun?

Hey, don't tell me, this thing is really professional.

It seems that I have to move a statue of Lao Jun another day, and burn incense and worship if I have nothing to do.

"Boss, is there really a holiday tomorrow? The project is so tight, or I'd better not let it go, I'm fine. ”

"I don't have anything to do, I'll come back tomorrow to prepare, and when you come back, you can do the experiment directly."

"What are you going to prepare? Is it granulated? ”

"Granulation, raw materials must also be prepared, if you can steal some time, you can steal some time"

"I don't think it's useful to do this, if I'm really lucky, when will I have to do it?"

As soon as these words came out, the crowd fell silent again.

Oh, yes.

Although modern materials science does have an element of chance, most of the time, it still depends on theoretical guidance.

Now their problem is that the theory is too weak, so weak that it basically cannot form a guiding meaning.

The only solution is to accumulate data from a large number of experiments and analyze the best path through modeling, so as to increase the probability and reduce the difficulty of "luck".

It can only be done with time.

How long will it be?

A neat sigh rang out in the laboratory, and after a moment, someone spoke:

"If only there was a way to bypass the flaws of the SHS method."

"Don't try your luck, just take one step, find a new process, and cover all the defects."

Hearing this man's words, the others couldn't help but roll their eyes.

"Why don't you want to win 100 million in the lottery? When the time comes, we hire a bunch of people to do the experiment, and they are all reckless. ”

"That's right, I think the probability of winning 100 million is relatively high"

Everyone teased me one by one, and the atmosphere was finally a little more relaxed.

As soon as the mood recovered, everyone began to continue the experiment again, but at this moment, a voice suddenly sounded at the door of the laboratory:

"There's this kind of craftsmanship."

"SHS combined with processing can be solved."

"SHS-Pressurized, SHS-Extrusion, and SHS-Extrusion, it should all work."

(End of chapter)