Chapter 1636 Semiconductors and Graphene

Electronic products, accuracy is always a very critical thing, radar is like this, sonar is the same, sometimes, it is not that the technology can not be reached, it is not difficult to find the object with radio, emit radio waves to any place, as long as the object is not a wave-absorbing material, it will reflect radio waves, but it is necessary to receive accurately, and judge the distance, size and shape and other factors, this can make an effective judgment, in principle, the more the number of radio waves calculated, The end result is more and more precise. Pen | fun | pavilion www. biquge。 info

However, the role of radar is more embodied in calculations, only super computing power, can give radar excellent performance, later generations of radar can be hundreds of kilometers away, control missiles, and make accurate control, all thanks to the rapid development of electronic computer products, the speed of computers in the military field, algorithm rules, has developed to a rather terrible degree.

Even if there is a chip brought by Yang Yuanzhao, the best of which is an imitation Apple chip, even if this chip is in the 21st century, it may not be suitable for military equipment, the current mature products, or based on calculators, which is more basic, and easier to modify, after using a lot of chips, China's radar level has reached the level of the 60s of the 20th century, but the volume has not been reduced.

Compared with radar, the structure is simpler, and even the amount of calculation is smaller sonar, it is much easier to change, unlike radar, sonar determines the sound, as long as it is amplified, and a certain design is carried out, so that the sonar can detect underwater things more clearly, and unlike the radar that is often tens of kilometers, the detection sonar can go deep into 500 meters underwater, and the range is at most three or four kilometers.

It is precisely because of the reduction of the measurement distance that the data that needs to be calculated by sonar is much smaller than that of radar, and with the continuous development of China in the field of radio and semiconductors, sonar is being produced smaller and smaller, and in itself, the material is the strongest aspect of China, and even the semiconductor project is also progressing rapidly.

Whether it was during World War II or after World War II, with the rapid development of microelectronics and semiconductors, the era based on electronic technology was born.

When the 80s of the 20th century, when the personal computer entered thousands of households, from tens of thousands of dollars of small computers, to microcomputers, the price of 2000-3000 US dollars, many middle-class people can accept, but the price of 30,000 US dollars, almost one-third of the annual income of a middle class, this unless there is demand, otherwise idle people will not buy computers, the emergence of microcomputers, so that it has become a family's necessities, and the Internet is gradually changing the world.

Cheap computers appeared, and kept innovating, the speed performance is getting better and better, but the price is gradually decreasing, to later, the price of the mainstream microcomputer, has dropped to below 1000 US dollars, but the performance, and the original, not the same day, the reason for such a big change, the reason is very simple, the cost of raw materials is almost zero, when the productivity rises, the intermediate links are reduced, the price will come down, the value of the CPU itself is the value of the process, and finally the cost of raw materials, It's not just how expensive the different structures of silicon crystals can be, the raw material is just a pile of sand, and after being purified and processed and burned to the circuit, it becomes an omnipotent CPU.

Similar to this, raw materials are worthless, mainly the cost of processing and production, and there are many more, the most famous of which is graphene, which is made from graphite, is a different manifestation of carbon crystals, this kind of thing, the value of the raw materials themselves is negligible, the key is the production process, the yield rate, even if it is worthless things, the yield rate has not been raised, the cost is also quite high, especially complex things, the production of the labor required is quite huge, several layers of accumulation, It's far more than the price itself.

In the later generations of Yang Yuanzhao crossed, graphene materials almost shocked the whole world, it is almost an all-round material, in superconductivity, batteries, defensive materials, and even wind power, solar energy and many other fields, have a huge role, once the completion of his research, for the promotion of related projects, can be said to be revolutionary, especially in the field of batteries and superconductivity, the emergence of graphene, brought about a revolution in batteries, may allow electric energy to replace oil and other fuels, become the ability of motor vehicles, that's all, It saves a lot of energy, whether it is an internal combustion engine, or a steam engine, it is impossible to make too big, and the energy efficiency ratio of fuel is not very good, but it is a large gas turbine, which can almost achieve a considerable utilization rate, from critical to supercritical, to ultra-supercritical, with a single point of coal consumption in the rapid reduction, the limit can even reach below 300 grams.

Compared with other energy sources, electric energy is the cleanest and most powerful energy source, but after the start of the power revolution, electric energy is only used on the train, or built on the premise of building a large number of transmission lines on the railway, other mobile use of electricity is very little, whether it is a car, an airplane or a ship, the reason is that the energy density of the battery is not as good as oil, but once graphene is integrated into the battery, even if it is basically used, it will bring revolutionary development to the battery, when the time comes, Power tools are really big in the world.

When graphene materials first appeared, due to the imperfect process, they could only be synthesized in the laboratory through a large amount of energy, and the output was unstable, the value of graphene, at the beginning, was hundreds of times that of gold, or even more, it can be said that it was one of the most expensive materials in the world, but his essence was carbon, as long as the problem of generation was solved, especially some relatively cheap and fast production methods, and the process of improved processing, his price would be greatly reduced, just like CPU, The price of the top-of-the-line CPU is about the same, and the speed and performance indicators have not improved much, and the same is true for graphene.

For graphene, Yang Yuanzhao is also very thirsty, he has no graphene material in his hands, even if he knows this, and even understands some indicators and processes, he wants to make it, the all-in-one machine has the effect of going against the sky, but it can't pass the index, and the non-existent things are out, even in the 21st century, graphene is the top technology, and this era is a material that will only appear in science fiction. In later generations, the concept of graphene has actually been put forward for many years, but in the whole nature and in the laboratory, there is no such physical object, many people have studied it for many years, and even think that this material is just a wrong idea, it is impossible to realize, and thanks to the persistence of some scientists, this has completed graphene, the largest discovery of the material in the 21st century.

Of course, Yang Yuanzhao wants to get it, it is knowing that graphene plays a role in batteries, conductivity, protection and many other aspects, he is eager to get it, if he really gets a little bit of graphene, even if he gets even a molecule of graphene from countless experiments, it can be manufactured on a large scale in the all-in-one machine, compared to other products, graphene is the most critical, when the time comes, China's tank aircraft, as long as it has a thin layer of graphene at the molecular level, The protection of the entire armor will undergo a historic change, not to mention that graphene is a real super material in some machine tools, aircraft parts and many other fields.

China's materials laboratory, is China's most developed in the field of science and technology of a single item, is a comprehensive beyond the world average level of a single item, the existence of an all-in-one machine, the whole world, any kind of material, as long as it is available on the market, can be analyzed by the all-in-one machine, and finally successfully manufactured, these countries have used decades, or even hundreds of years, to accumulate advantages, in the face of the all-in-one machine, as long as the material is sold in the world, produced, can be analyzed by the all-in-one machine, In the early days of the application of materials science, the European and American powers only used the premise of formulas, which was not a secret.

Yang Yuanzhao has broadened the horizon of Chinese materials science by virtue of some quenching, post-processing, stress reduction and other projects known in the field of engines, and new technologies have been born continuously, far exceeding the world's similar level in various major steel materials.

The material of steel is not the whole of materials science, materials science is more alloy materials and some polymer composite materials, these are the real ever-changing, a molecule, one more carbon atom, one more molecular bond, will make the performance of the material earth-shaking changes, this exploration will be endless, may be born more useful substances.

All-in-one machine random 10,000 kinds of materials every day, it may take ten days and half a month, there will be a small harvest, three or five months, it is possible to obtain a particularly good material, but the accumulation of time, especially for the improvement of China's material science, quite considerable, China also relies on these, as well as the analysis of all materials of the all-in-one machine, in the material science, out of a different road from any country, the development is very fierce.

Purely for the public relations of a project, it is more difficult, Yang Yuanzhao has only heard the name graphene, and even what graphene is, his molecular formula and composition structure do not know, roughly from the description in the newspaper, give this concept, let the laboratory find out this thing, in the laboratory, he issued this research index, but also guided part of the direction, most people feel that this is simply a product of science fiction, this thing is too powerful, and too omnipotent. (To be continued.) )