The finer the powder, the easier it is to bind together during sintering, forming a dense structure, and even reducing the sintering temperature due to the increase in surface area.

Reaching the nano level, in fact, is not a fantasy, in another twenty years, this kind of nanotechnology, will be overwhelming, when the time, all walks of life, whether they can use it or not, will advertise what nanotechnology they use, regardless of whether the person actually knows what nanotechnology is.

Now, if nanotechnology is proposed, most people actually don't believe it.

Even Huang Lao frowned.

"If we can study to the nanometer level, it will be of great help to our materials science, but this must first have a scanning tunneling microscope, which for us, we can only sigh at present."

Looking at the Pacific Ocean and sighing, the most advanced technology is on the opposite side, back then, Huang Lao also studied in the opposite university, it is precisely because he once studied materials science, so when the country later wanted high powder metallurgy technology, he was the leader.

Now, speaking of this nano-level, Huang Lao knows what it means, but the foundation is not available now.

"Yes, we may not be able to reach it now, but if we work hard, we can definitely achieve it." Qin Zhenhua said: "Now, our country is making every effort to develop the economy, and when we have economic strength, then our industrial technology will definitely develop with it." ”

"You kid, it's really not real." Huang Lao said with a smile: "The data you put forward is to point out to us a goal to achieve in ten or twenty years." ”

When Huang Lao said this, everyone laughed, and Zhu Lao also laughed on the side, only a person like Qin Zhenhua dared to say big things in front of Huang Lao.

"By the way, what is the need for the adiabatic shear performance you just mentioned?"

In the past, when everyone engaged in materials, few people paid attention to this performance, because there was no target demand, and this Qin Zhenhua proposed this effect, what is it for?

"This, it works for us." Qin Zhenhua said: "We have now noticed that the shells of foreign tank guns, in the process of finding new materials, have matured the depleted uranium material, this material is very suitable as an armor-piercing projectile, because, in the process of penetrating the armor, other materials are more and more blunt, and the depleted uranium material is sharper and sharper, this is called the self-sharpening effect of depleted uranium material, Huang Lao, this senior brother, you should be able to know why I want this performance requirement, right?" ”

Armor-piercing bullets rely on the slender body to pierce armor, among them, the tip is the most important, the sharper it is, the easier it is to penetrate it.

The characteristics of depleted uranium ammunition lie in this, in the process of penetrating it, the adiabatic shear expansion performance is small, and it is easy to have adiabatic shear efficiency at its tip, and this shear, like sharpening a knife, cuts its tip sideways layer by layer, and constantly exposes the new tip.

Well, it's like a utility knife, when the knife is no longer sharp, the blade is smashed down, and the bottom one becomes sharp again.

In this way, in the process of continuous armor piercing, that head has always been pointed.

The others will not work, and the further you drill in, the more dull it will become.

Although the difference caused by this is not particularly large, it is worth trying as long as it can increase the depth of armor penetration by even one millimeter.

There are also depleted uranium alloys in China, which have been studied in the sixties, and now there are results, but because it is radioactive, Qin Zhenhua has not taken depleted uranium armor-piercing shells as a key aspect to study, and on the other hand, the tungsten ore of the motherland is particularly rich, so it is logical to use rich tungsten alloy as its own armor-piercing bullets, and strive to improve the technology of tungsten alloy to achieve greater penetration!

Therefore, he put forward this idea, since depleted uranium alloy can be self-sharpening, then, does our tungsten alloy also have the prospect of self-sharpening?

"It's not easy." Huang Lao said.

"Yes, of course it's not easy, I think, in addition to using more precise powder in the sintering process to make it, we also need to add trace elements alloying to strengthen and rotary forging, torsional deformation, hydrostatic extrusion, etc., at the same time, this adiabatic shear, we can use the computer to carry out mechanism and numerical simulation calculations, in this way. Of course, we still have to continue to study technology, and perhaps in the future, we will be able to have special equipment to manufacture special preparations such as mechanical alloying to prepare nano-tungsten alloy composite powder, thermoforming and pre-oxidation activation sintering. ”

Cheng Wang on the side, his eyes were about to fall out, this guy is really ashamed, speaking of which, one by one, do you know how difficult it will be?

It's hard to understand.

Qin Zhenhua sold all his theories. In fact, these ideas have always existed in his mind, the progress of materials, determines the development of the entire industrial base, their own imitation of German diesel engines is not successful, materials are a big problem, now, since I met this material expert, of course, to put forward their own ideas.

"As for research funding." Qin Zhenhua thought more: "We can provide a part of the machine factory, and at the same time, the army will definitely be able to provide a part, I know that this thing burns money." ”

"What? You can still provide funds, you have a big breath. Cheng Wang said.

The young man in front of him is one or two years younger than Cheng Wang, Cheng Wang definitely doesn't believe that Qin Zhenhua has this ability, speaking of which, one by one, he really has this ability? Do you know how much it costs to develop this kind of thing, every time you conduct an experiment? The electricity bill alone costs thousands of dollars!

Qin Zhenhua touched his nose: "Yes, it just can't be too much, invest more than 100,000 yuan a year, I think, I can still call the shots." ”

With the current net profit of a machine factory, a tank can earn millions, so it is naturally appropriate to invest money in research and development.

After Qin Zhenhua finished speaking, Zhu Lao on the side nodded: "I don't think it's a problem, this kid, what you have in hand is money, Lao Huang, I found you a local tyrant, how much money you can pick out depends on your ability." ”

If Zhu Lao also said the same, it would be different.

"By the way, what is the performance of the tungsten alloy rod you just fired? Can I take it back and process it into armor-piercing bullets? If the depth is increased, then you can fool the army and let the army allocate funds to you. Qin Zhenhua said.

In the past, increasing the depth of armor piercing was mainly changed from the structure, but now, to continue to increase the depth, you can only start with the material.

"Ten percent better performance than the existing one." Huang Lao said: "Children, don't forget what you said today. ”