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Chapter 1636 Semiconductors and Graphene

Electronic products are always a very critical thing. Radar is like this, and sonar is like this. Sometimes, it is not impossible to achieve technology. It is not difficult to find objects with radio. When transmitting radio waves at any place, as long as the object is not a wave absorbing material, it will reflect radio waves. It only needs to be accurately received and judged various factors such as distance, size and shape, so that effective judgment can be made. In principle, the more calculated radio waves, the more accurate the final result will be.

However, the role of radar is more reflected in computing. Only with super computing power can the radar provide excellent performance. Later radars can control missiles hundreds of kilometers away and make precise controls, thanks to the rapid development of electronic computer products, the operating speed and algorithm rules of computers in the military field have developed to a very terrible level.

Even if there are chips brought by Yang Yuanzhao, the best one is a chip that imitates Apple. Even if this chip is from the 21st century, it may not be suitable for military equipment. Currently mature products are based on calculators. Which one is more basic and easier to modify? After using many chips, China's radar level has reached the level of the 1960s, but the volume has not been reduced.

Compared with radar, sonar with a simpler structure and even smaller calculations are much easier to change. Unlike radar, sonar determines sound. As long as it is amplified and a certain design is made, the sonar can detect things underwater more clearly. It is different from radars that can often reach dozens of kilometers. It is good to detect sonars that can penetrate 500 meters underwater, and the range is at most three or four kilometers.

It is precisely because of the reduction of measurement distance that the data required for sonar is much smaller than that of radar. With China's continuous development in the fields of radio and semiconductors, sonar is being made smaller and smaller. In itself, in terms of materials, it is China's strongest aspect, and even semiconductor projects are progressing rapidly.

Whether 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. Generally speaking, the reason why semiconductors are difficult to improve and their high prices is not the key to themselves, but the production process. If the production process can be greatly improved, the cost will drop significantly.

When personal computers entered thousands of households in the 1980s, they changed from small computers that cost tens of thousands of dollars to microcomputers. The price of 2,000-3,000 US dollars was acceptable to many middle-class people, but the price of 30,000 US dollars was almost one-third of the annual income of a middle class. Unless there is a demand, ordinary people would not buy computers. The emergence of microcomputers made it a necessity for a family, and the Internet was gradually changing the world.

Cheap computers emerged and constantly innovated. The speed and performance were getting better and better, but the price gradually decreased. Later, the price of mainstream microcomputers had dropped below $1,000, but the performance was incomparable to the original one. The reason for such a big change was very simple. The cost of raw materials was almost zero. When productivity increased and the intermediate links decreased, the price fell. The value of the CPU itself was the value of the process. Finally, the cost of raw materials was not just the different structures of silicon crystals. The raw materials were just a pile of sand. After purification and processing and burning the circuit, it became an omnipotent CPU.

In this way, raw materials are not valuable, mainly due to the cost of processing and production. There are many more. Among them, the most famous one is graphene. It is made from graphite and is in different forms of carbon crystals. The value of this kind of thing is negligible. The key is the production process and yield rate. Even if it is something that is not valuable, the yield rate has not been increased, and the cost is quite high, especially for complex things. The labor required for making them is quite large, and the accumulation of several layers is far more than its own price.

When Yang Yuanzhao traveled through time in later generations, graphene materials almost shocked the whole world. It is almost an all-round material, and plays a huge role in many fields such as superconducting, batteries, defensive materials, and even wind power, solar energy. Once his research is completed, the improvement of related projects can be said to be revolutionary. Especially in the fields of batteries and superconducting, the emergence of graphene has brought about changes in batteries, which may allow electricity to replace fuels such as oil and motor vehicles and become the ability of motor vehicles. This alone saves a lot of energy. Whether it is an internal combustion engine or a steam engine, it is impossible to make too much energy. The energy efficiency ratio of fuel cannot be used well. On the contrary, large gas turbines can almost achieve a considerable utilization rate, from critical to supercritical to supercritical, with the single-point coal consumption rapidly reducing, and the limit can even reach less than 300 grams.

Compared with other energy sources, electricity is the cleanest and most powerful energy. However, since the beginning of the power revolution, electricity is only used on trains or built on railways to build a large number of transmission lines, few other mobile phones use electricity. Whether it is cars, aircraft or ships, the reason is that the energy density of the battery is not as good as oil. However, once graphene is integrated into the battery, even after it is basically used, it will bring revolutionary development to the battery. At that time, power tools will be really large 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 was hundreds of times that of gold at the beginning, or even more. It can be said to be one of the most expensive materials in the world. However, its essence is carbon. As long as the generation problem is solved, especially some relatively cheap and fast production methods, and improved processing technology, its price will be greatly reduced. Just like CPUs, the price of the top CPU is similar, and I don’t know how much the speed and performance indicators have been improved, and the same is true for graphene.

Yang Yuanzhao is also very eager for graphene. He does not have graphene material. Even if he knows this, he even understands some indicators and processes, and wants to make it. The all-in-one machine has a great effect, but cannot use the indicators to produce things that do not exist. Even in the 21st century, graphene is the most advanced technology, and this era is a material that only appears in science fiction. The concept of graphene has actually been proposed for many years in later generations, but there is no such thing in the entire nature and laboratories. Many people have studied it for many years and even think that this material is just a wrong idea and cannot be realized. Thanks to the continuous persistence of some scientists, graphene, the largest discovery material in the 21st century, has been completed.

Of course, Yang Yuanzhao wanted to get it. It was because he knew that graphene had many roles in batteries, conductivity, protection and other aspects that he was eager to get. If he really made a little graphene, even if he got even a molecule graphene from countless experiments, he could manufacture it on a large scale in an all-in-one machine. Compared with other products, graphene is the most critical. At that time, as long as China's tanks and aircraft have a thin layer of graphene at the molecular level, the protection strength of the entire armor will undergo historic changes, not to mention that in many fields such as machine tools, aircraft components, graphene is a real super material.

The China Materials Laboratory is the most developed single item in China in the field of science and technology. It is a single item that completely surpasses the world average. With the existence of an all-in-one machine, any material in the whole world, as long as it is found on the market, can be analyzed through an all-in-one machine and finally successfully manufactured. These countries have accumulated advantages for decades or even hundreds of years. Facing the all-in-one machine, as long as this material is sold and made in the world, it can be analyzed by an all-in-one machine. In the early stages of material science, European and American powers only use formulas, there is no secret.

With some projects known in the field of engines, Yang Yuanzhao broadened the horizons of Chinese materials science, and new technologies have been born constantly, and in various major steel materials, it far exceeds the same level in the world.

The materials of steel are not all about materials. Materials are more about alloy materials and some polymer composite materials. These are truly ever-changing. In a molecule, one more carbon atom and one more molecular bond will cause earth-shaking changes in the performance of the material. This exploration will never end, and there may be more useful substances that may be born.

It may take ten days and half a month for all-in-one machines to get a small gain, and three to five months to obtain a particularly good material. However, over time, especially for the improvement of materials science in China, it is quite considerable. China also relies on these and all-in-one machines to analyze all materials, in terms of materials science, and has embarked on a different path from any country, and has developed very vigorously.

It is more difficult to simply target a project. Yang Yuanzhao has only heard of the name graphene, and even doesn't know what graphene is, his molecular formula and composition structure. He roughly gave this concept from the description in the newspaper, allowing the laboratory to find this thing. In the laboratory, he issued this research indicator and also guided some directions. Most people feel that this is simply a product of science fiction. This thing is too powerful and versatile.
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