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Chapter 37 Superconductivity and material technology (recommendation please bookmark)
The preparation of room-temperature superconducting materials is not as simple as Wei Lai told his leaders.

The discovery of superconductors originated in 1911. Dutch scientist Kamaling Onnes cooled mercury with liquid helium. When the temperature dropped to 4.2K (-268.95°C), the resistance of mercury disappeared completely. This phenomenon is called superconductivity. , the phenomenon of superconductivity was discovered.

Superconductors can be divided into the first type superconductor and the second type superconductor according to the material, can be divided into traditional superconductor and non-traditional superconductor according to the interpretation theory, can be divided into high temperature superconductor and low temperature superconductor according to the critical temperature, according to the material can be divided into chemical material superconductor and superconductor organic superconductors.

After a hundred years of development, we have continuously refreshed and made breakthroughs in the critical temperature of high-temperature superconductors, and the BCS theory has also explained the superconducting phenomenon of traditional superconductors well.

The phenomenon of superconductivity is a broad concept. To judge whether a material is a superconductor, it must have two characteristics of zero resistance effect and complete diamagnetism. If the resistance does not drop to zero or the diamagnetism is very poor, it cannot be 100% determined to be superconducting.

Superconductivity means that when the temperature is lower than a certain value, the resistance disappears and the magnetic field is discharged from the superconductor body.Temperature is a key factor in the formation of superconductors.Each substance has a specific temperature above which, no matter how much the pressure is increased, the gaseous substance will not be liquefied, and this temperature is the critical temperature.

Compared with the temperature requirements of the initially discovered mercury superconducting state, the temperature condition of 4.2K is obviously extremely restrictive for our use.

With the wide application prospects of zero resistance and diamagnetic properties, people began to explore the road of high-temperature superconductivity.The high temperature here is compared to absolute zero, which is 0K temperature, -273.15°C.

The importance of material technology is self-evident, and the conditions of normal temperature and pressure are the prerequisites for various materials to meet the application goals.

Practice is the only criterion for testing truth.

Just as ancient humans got the barbecue gifted by lightning and fire before they knew how to use fire, Wei Lai got the preparation method of room temperature superconducting materials.

In the absence of a corresponding theoretical basis, the difficulty of expanding research and preparation of relevant theories is far beyond Wei Lai's imagination.

However, the application of characteristics still brings great value to the construction of theoretical foundations. The preparation of non-traditional superconductors is carried out under such circumstances by maintaining the superconducting state at normal temperatures and pressures.

The birth of superconducting materials was not born out of thin air, but through technical means to use and maintain superconducting materials at normal temperatures and pressures.All materials with superconducting properties are called superconducting materials, which also gives Wei Lai and his research team more experimental directions.

Wei Lai's preparation method is based on the synthesis of different metals and bio-based coatings, through catalysts and specific temperature and pressure for material synthesis, to obtain superconducting alloys under normal temperature and pressure.

The entire scientific research team is still at a loss.Because of the confusion and incompleteness of superconducting theory, the application of such a new type of alloy is impossible to talk about. There is still a lot of work to be done by Wei Lai leading this dedicated scientific research team.

Since there is no theoretical support, everything must first be produced through the synthesis technology in the mind of the superconducting alloy and then analyzed.

The scientific research team took the lead in purchasing and modifying the equipment, and then smelted the purchased metal raw materials and the bio-based coatings cultivated by the biological cultivation equipment in proportion, input specific temperature and air pressure, and manufactured the first batch of superconducting alloys.

The next step is to study and observe the characteristics of this batch of superconducting alloys.We also know that the characteristic of zero resistance alone is not enough to serve as a superconductor. The first step is to verify the superconducting properties of the alloy.

After observing various experiments, the scientific research team determined the superconductivity of the alloy.

The next step is to observe the environmental adaptability of the superconductivity of the alloy and whether there will be new changes.Give examples to illustrate that in the sky and on the ground and in water, wet and dry environments, the existence and application of substances have different constraints.

The entire scientific research team conducted a comprehensive test around the properties of superconductivity. The main purpose is to observe whether the application of superconductivity in the environment will disappear due to certain specific conditions.

A large number of experiments on the superconducting properties of superconducting alloys have consumed a lot of energy and time from Wei Lai and the research team. The number of personnel in the scientific research team is obviously insufficient, and a large number of basic research and theoretical research must be put on the agenda as soon as possible.

More scientific researchers have joined the basic research work on new alloys, and a large amount of data on mass, density, temperature, properties, material definition, etc. are accumulated in the research center every day.

Materials science research is extremely boring and requires a lot of time for testing.From a macro perspective to a micro perspective, the research progress surrounding superconducting alloys is constantly advancing.

With ready-made reference objects, it is even more powerful to complete the superconducting theory. Different assumptions, existing questions, and existing theories are constantly being overturned, reconstructed and improved.

In any case, the excellent properties of superconducting alloys have been confirmed.While researchers are conducting theoretical work and research on material properties, the cost reduction and the expansion of preparation technology are also officially launched.

Cost has always been an important factor restricting the development of new technologies.The preparation of superconducting alloys is not cheap and requires a new process production line. This is a different emerging superconductor industry chain with broad market prospects and a huge market worth trillions. The entire industry chain involves the cultivation of bio-based coatings. Metal industry, catalyst industry and other industries.

The application scenarios of a single type of material are still limited. The application of superconducting materials in different industries requires different material properties. The emergence of superconducting alloys marks the correctness of the direction. The scientific research team also needs to deduce more superconducting materials. Synthesis methods, iron-based superconducting materials, carbon-based superconducting materials, etc.

Just like rigid materials, the production of flexible materials can truly enter commercial operations.The real application of superconducting materials can even lead to breakthroughs in the development of nuclear fusion technology.Among existing industries, nuclear magnetic resonance is the most widely used scenario for superconducting properties.The popularization of superconducting materials will greatly improve medical conditions.

Countries also have their own research projects in the field of superconductivity. Just like Huaxia, as an "infrastructure madman", the high-temperature superconducting levitation train technology has been researched for nearly 20 years.The room temperature superconducting technology brought by Wei Lai is about to show the dominance of a new technology standing on top of the world for the first time.

A new era is coming. What Wei Lai didn't expect was that the full application of the robot era he expected had not yet arrived, and the era of superconducting technology had arrived on Earth and the planet first.The promotion and popularization of applicable technologies has touched the interests of too many people. This new revolution was first launched in the academic world.

　The preparation technology is YY, so don’t take it seriously.

　　
　
(End of this chapter)