"Xiao Zhao, come and eat some food." The chief noticed Zhao Wuji's change and immediately reminded him.
"Haha, I'm sorry. I should learn more Qi-nurturing Kung Fu from the chief!" Zhao Wuji scratched his head. Who is the chief? How can I be so crazy in front of him? A few years ago, the chief was negotiating with the Prime Minister of the British Empire.
At that time, that is called power!
No one in the outside world knew about this secret conversation. However, after this secret conversation, China's style changed and became more pragmatic. There were some institutional changes that were at least three to five years earlier than in parallel time and space.
Of course, it will take several years before China's history is finally changed, or China's real rapid development is achieved.
However, compared with his previous life, Zao Wuji's current life not only expanded in quantity and scale faster, but also in better and higher quality. In some key areas of the national economy, such as biotechnology, computer technology, the Internet, etc., it is enough
A generation ahead of the West in technology. And our previous shortcomings, such as industrial machines and special materials, have also surpassed the West as a whole. Duplicate construction, wealth disparity, interest groups, etc., although they still exist, are much better than parallel time and space.
It is difficult to govern a country. Even in the West, it is full of interest groups and various complex social contradictions.
…
On this night, although the leader was very talkative, Zhao Wuji left at 10 o'clock in the evening. As for his place to live, the Chinese Academy of Sciences had booked a room for him, because he would attend a meeting organized by the Ministry of Science and Technology and the Chinese Academy of Sciences the next day.
, "Reporting Meeting on New Technology Achievements of Special Materials and Special Alloys" hosted by the Academy of Engineering.
China has always had a large scientific research team conducting research on special materials and special alloys. However, due to its low cost and isolation from the world for many years, its research progress is not ideal, at least not in direct proportion between input and output.
Some people say that China does not pay attention to scientific and technological research. It depends on which angle you look at it. Special materials and special alloys are related to military industry, missiles, nuclear weapons and other industries. How could it not be taken seriously? To say that it is not taken seriously, it may be because of basic science.
I really don't pay much attention to it.
303, also known as the Institute of Engineering Physics, is one of the most important research institutes under the national defense system and one of the most important supporting research institutions for China's "two bombs and one satellite".
Therefore, after Zao Wou-ki saw Chen Dashan holding a monograph on materials science in the Zizhou City Bookstore, he immediately caught the opportunity and "sold" himself, thereby opening up another world for Zao Wou-ki.
Special materials are a composite concept. From the perspective of functional characteristics, they can be divided into high temperature resistant materials, low temperature resistant materials, acid resistant materials, alkali resistant materials, wear resistance, high speed resistance, bending and distortion resistance, and resistance to bending and distortion.
Aging materials, etc. In addition, there are energetic materials (such as explosives)... From the perspective of material composition, there are non-metallic materials, metallic materials, synthetic materials, polymer materials, etc.
Zhao Wuji led the 303 research team's main research directions, and initially only selected two. One was high-temperature resistant materials, also known as high-performance refractory materials or special refractory materials; the other was special alloys.
In later generations, China cannot be said to be too backward in this aspect, but compared with the United States, Xiong Country, and Pu Country, we have never been able to produce engines comparable to them. They are always one level weaker, and are technically called late.
First generation, the important reason is that our refractory materials are not good enough. The flight speed of our rockets and missiles is much lower than that of their counterparts. The reason is that the engines are not resistant to high temperatures. The energy burned in the same time is limited and the thrust generated is limited.
Special refractory materials also include a wide range of contents, mainly including high melting point oxides, high melting point non-oxides and composite compounds derived therefrom, cermets, high temperature coatings, high temperature fibers and their reinforcing materials. Among them, high melting point non-oxides
Usually called refractory compounds, they also include carbides, nitrides, borides, silicides and sulfides, etc.
Zhao Wuji guided the research this time mainly on the three types of carbides, nitrides and silicides among high melting point non-oxides. After several months of repeated research and experiments, he finally achieved "the overall level is on par with the world's advanced level and partially leads the world"
"Technological breakthrough.
The use of special materials is also very mysterious and magical, such as high-temperature coatings. As long as one layer is applied, the life of the engine boiler can be doubled, and its high temperature resistance can be increased by hundreds or even thousands of degrees.
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For example, our rockets can only fly at a speed of 3,000 kilometers per hour. After using the latest high-temperature-resistant coating materials, the speed can be increased to 3,500 kilometers or even more than 4,000 kilometers.
Special metal materials have developed into a huge family in later generations, such as amorphous metal materials obtained through rapid condensation processes, as well as quasicrystalline, microcrystalline, nanocrystalline metal materials, etc.; in addition, there are stealth, hydrogen-resistant
, superconducting, shape memory, wear-resistant, damping and vibration reduction and other special functional alloys, as well as metal matrix composite materials, etc.
In the field of special alloy research, Zao Wou-Ki also did not seek more and faster. He only chose one type of "cermet" for research. In terms of subject classification, cermet belongs to "composites of high melting point oxides and refractory metals"
A kind of. However, this kind of "metal ceramic" has a wide range of uses in modern production fields.
There are also quite a few classifications of cermets. Zhao Wuji took the lead in researching three materials:
The first is "oxide-based cermet". This kind of ceramic has the characteristics of high temperature resistance, resistance to pouring corrosion, good thermal conductivity, and high mechanical strength. It can be used for missile nozzle bushings, crucibles for melting metal, and metal cutting tools.
The second type is called "carbide-based cermet", which has the characteristics of high hardness, high wear resistance, and high temperature resistance. It is used to manufacture cutting tools, high-temperature bearings, sealing rings, wire picking mold sets and turbine blades.
The third type belongs to "metal-based cermets", which are made by adding oxide fine powder to the metal matrix. They are also called dispersion reinforced materials. For example, a material called "sintered aluminum" has higher high-temperature strength than alloy aluminum.
It has low density, easy processing, corrosion resistance and good thermal conductivity. It is often used to manufacture structural parts of aircraft and missiles, engine pistons, chemical machinery parts, etc.
From the uses of these three kinds of "cermets", it is not difficult to see the significance of Zhao Wuji's choice of these research projects for "breakthroughs". Ni media, it is because these things are not good that China has been controlled by others for a long time.
In his previous life, Zao Wou-Ki would have had a headache when he saw these professional terms. For example, "damping and vibration reduction" would be as difficult for liberal arts students as Einstein's theory of relativity.
In fact, it is easy to understand when the four words "damping and vibration reduction" are expanded: "When a solid vibrates, the method of dissipating as much of the energy of the solid vibration in the damping layer as possible is called damping and vibration reduction.
"And "damping" refers to hindering the relative motion of objects and converting motion energy into heat energy or other functions that can dissipate energy (? Xingchen liberal arts students, please don't complain).
There was an online novel in later generations that also wrote about using ceramics to make car engines. In fact, the book was missing the word "metal" because ceramics only have the characteristics of high temperature resistance, corrosion resistance and wear resistance.
, and lacking the toughness, high thermal conductivity and good thermal stability of metal, it is obvious that the car engine must be the best "cermet" which is a combination of "metal" and "ceramic".
Things that lack toughness are brittle. I guess car engines don’t only use ceramics. Of course, it’s just a novel, and it’s the author’s freedom to write how he wants. Maybe, that thing really exists, but Zao Wou-ki hasn’t come into contact with it yet.
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The "New Technology Achievements Report on Special Materials and Special Alloys" was held on the afternoon of the 13th. Zhao Wuji had nothing to do in the morning.
Because Zhao Wou-ki is the "chief scientist" of this research, the Academy of Engineering sent a researcher (deputy director) from the Institute of Metal Materials named Ye Hai in the morning to seek Zhao Wou-ki's opinion on the arrangement of the briefing meeting.
Zao Wou-Ki paid high respect to this grey-haired scientist who was already in his early 50s and had worked at the Institute of Metal Materials of the Academy of Engineering for thirty years.
Isn't it a good time for many "bricks" in their early 50s in later generations to get paid to give speeches during the day and wash their feet and take a bath at night? However, these scientists who have worked in obscurity for the country all their lives, when they have a foot-washing room and sauna
, they have become too old to even walk.
Zhao Wuji suddenly remembered that his "promise" from the chief was to give those so-called politicians only 12 places for maintenance treatment a year, and he had no brains to give out 120 places on impulse. It was really "wise";
Because he saw from Ye Hai the greater value of his miraculous medical skills, which was to try his best to save the lifespan of these older generation scientists.
If these scientists can live for five more years, their contribution to China will be unparalleled, because many scientists lose their energy and die just when they are about to produce results. And those so-called politicians can live for five more years.
, but it will consume more social wealth.
Of course, there are politicians who care about the nation and the country, and such people are naturally worthy of his action; but at least more than half of them, Zhao Wuji feels that they are superfluous people living in the world.
However, before Zhao Wuji could figure out how to deal with the matter, Ye Hai told him a piece of news that almost scared Zhao Wuji into having a heart attack.
It turns out that news agencies will be invited to participate in this briefing. At the same time, according to the instructions of the China Propaganda Department, Zhao Wuji will be interviewed at the briefing, and the results of these briefings will be reported in major media across the country.
"Have you prepared a press release or a document introducing the results?" Zhao Wuji asked calmly, although he almost had a heart attack.
"Yes. Please take a look at it, Academician Zhao." Ye Hai took out a stack of materials.
It only took Zao Wou-ki five minutes to read through more than ten pages of materials prepared for reporters. If he were not afraid of arousing Ye Hai's suspicion, Zao Wou-ki could even know the general content at a glance.
"I don't agree with this press conference!" After reading the materials, Zhao Wuji pointed at the materials and said seriously. (To be continued.,,,
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