"What new material?" asked Li Fang.

Qian Qiang smiled embarrassedly, then looked at Zhuang Jianye, and said modestly, "I'm not very proficient in materials, Zhuang always leads this area, let's let him introduce it." ”

Zhuang Jianye had long expected that Qian Qiang would say this, no way, Qian Qiang is such a person, he has always been straightforward in life, if you talk about aero engines, he will not be too tired to tell you for three days and three nights, but out of this acre and three points of land, he will cherish ink like gold.

Materials, especially aviation development materials, Qian Qiang, a guy who is engaged in gas turbine power units, can he not be clear in his heart, I don't know how he processes materials into parts and applies them to gas turbine power units?

However, it is not his own main development, not the results achieved by his own side, Qian Qiang feels that it is not his own thing, and when he says it, he is suspected of putting gold on his face with other people's achievements.

No matter how thick-skinned Qian Qiang is, he doesn't want a certain woman to stubbornly rub his backbone behind his back.

Zhuang Jianye didn't care about the chain of contempt in the academic circle between Qian Qiang and Song Yanan at all, they were both excellent senior experts in their fields, so they should be a little arrogant. It's okay to despise each other and look down on each other, as long as you do a good job for yourself.

Therefore, Zhuang Jianye coughed lightly and naturally took over the conversation: "At present, the aviation technology research and development center under our Tengfei Aviation Corporation has developed two series of metal matrix composite materials in addition to carbon fiber composite materials, one is aluminum matrix composite materials, and the other is titanium matrix composite materials.

Among them, titanium matrix composites are silicon carbide fiber reinforced titanium matrix composites, and aluminum matrix composites are two kinds, one is silicon carbide fiber reinforced composites, and the other is carbon fiber reinforced aluminum matrix composites made of T300 carbon fiber composites. ”

"Xiao Zhuang, what did you just say you came up with?" Carbon fiber reinforced aluminum matrix composites?" This time it was not Li Fang or Song Changzheng who spoke, but Director Zhao, who was watching from the sidelines.

Because it was too sudden, and the voice was surprised and high-pitched, Zhuang Jianye was startled, but Director Zhao was especially aware of his gaffe, and stepped forward to stare at Zhuang Jianye's face with a look of hope, and anxiously urged, "Are you talking, did you really make a carbon fiber reinforced aluminum matrix composite? Can you carry out large-scale industrial production? What is the current output? How much inventory do you still have here?"

The questions were like a series of cannons, which made Zhuang Jianye's head buzz, and Song Changzheng and Li Fang on the side were a little surprised when they looked at this scene, because whether it was silicon carbide fiber or carbon fiber, they were surrounded by clouds and mountains, so that Zhuang Jianye understood two words after saying it for a long time, one is aluminum, and the other is titanium.

But why do you talk about fiber? Can you weave cloth?

However, this ridiculous idea only flashed in the minds of the two of them, because it was very simple, looking at Director Zhao's excited appearance, it was obvious that the carbon fiber reinforced aluminum matrix composite material he was talking about was not simple.

You must know that Director Zhao is in civilian clothes for the aerospace system, and when he wears a military uniform, he is the Second Artillery Corps, and he is playing with nuclear deterrence, which is a heavy weapon for the country, and he can take out the same casually, which is one of the best cutting-edge in China.

Therefore, it is really difficult for general things to get into Director Zhao's eyes, otherwise a few people just discussed for so long to ignite the turbine power, and everyone didn't say a word, except for the previous embarrassment, mainly because Director Zhao's family didn't care about these things at all.

No matter how powerful the plane is, it is the fate of wandering in the atmosphere, and Director Zhao is all about rushing to outer space and returning to the atmosphere, and the rank is not at the same level.

But now Director Zhao, who is in a high position, suddenly became fanatical and excited, and asked Zhuang Jianye about carbon fiber reinforced aluminum matrix composites, obviously this kind of thing is not ordinary.

So the two glanced at each other, and Song Changzheng immediately stepped forward without hesitation, "Lao Zhao, Lao Zhao~~~ You see what Xiaozhuang has scared, calm down, calm down, come ...... Take a sip and talk about what carbon fiber reinforced aluminum matrix composites are. ”

Being so caught up by Song Changzheng, Director Zhao also felt that he was a little out of shape, took the water handed over by Song Changzheng and poured it down, and then squinted at Song Changzheng and Li Fang, "Good things, better than gold, let me tell you, with a carbon fiber reinforced aluminum matrix composite missile with a range of 3,000 kilometers, it can immediately have a range of 5,000 kilometers......

Director Zhao is really right, missiles, especially long-range missiles that can re-enter the atmosphere, the missile body, instrument compartment, fairing, internal bracket and other structural materials not only need to be lightweight, but also must be strong.

Since the missile is launched into the air, the friction between the missile body and the air will produce high temperatures, so it is also necessary for the material to be basically stable under high temperature conditions and have excellent creep resistance.

The above three points are just the basic requirements for the materials of the advanced missile body, and the remaining injection friction coefficient should be small, have a certain degree of thermal and electrical conductivity, and have good machinability, and so on, and its requirements are not much less than the general material requirements on aero engines.

If not, how can a few countries in the world understand how long-range missiles can be done, although other countries are desperately catching up, but no matter how they toss, they are always a little worse than the first few, and the root cause is here.

For the same missile body, several large countries use high-performance alloy materials, while other catching countries use alloy steel, just this point, the payload and range of the catching country under the same thrust are a lot less, as for the other support structures are too complicated, the fuel tank is not well sealed, and the heat dissipation of the loaded warhead is not good, which can directly make the missile that is shot out become a large artillery battle.

Compared with other catch-up countries, it is a shame that the country is stronger, after all, there are several titans in China, and the system integration ability in aerospace is very strong.

But compared with the top bigwigs like the United States, there is still a big gap, people can send people into space with the same thrust, but China may only be able to send a small mouse.

In addition to the gap in the level of technology, the key lies in the materials used in the missile.

According to public information, the U.S. Minuteman 3, Trident and other missiles use carbon fiber composite materials, but if the wronged boss really uses carbon fiber composite materials such as T500 and T700 to install long-range missiles, then the missiles will really be tossed as cannons.

Because the name of the carbon fiber composite material such as T700 is carbon fiber resin composite material, the strength, mildness and even yield are not to be said, but because of the innate preparation process, the heat resistance of carbon fiber resin composite materials is not good, in other words, when the missile rises rapidly, the heat generated by friction with air is enough to burn through the shell made of this type of material.

This is also why fighter jets generally do not talk about carbon fiber resin composite materials on secondary components, because at supersonic speeds, the heat generated by the body is also terrifying.

But if you want to point at the nose of the Americans and say, if you fool Lao Tzu, the Americans will definitely reply, that is your ignorance.

Is it a carbon fiber composite, yes, but not a carbon fiber resin composite, but a carbon fiber reinforced aluminum matrix composite.

。