Chapter 617 of the text is superconductivity at room temperature

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Hearing Guo Zhenyu ask such a question, Liu Guangming couldn't help but feel a little nervous, not knowing if his rash question would make Ma Yang dissatisfied, so he couldn't help but kick him lightly under the coffee table.

Guo Zhenyu didn't seem to understand what he meant, and muttered in a low voice, "If I don't figure out what this thing is, how will I do my work?"

"Of course, we'll let you know!" Ma Yang said with a smile, he took a copy of the formula from Guo Zhenyu's hand and said, "This is the formula of a new type of room temperature superconducting material, according to the number we have derived, this material can achieve superconductivity between 252.3k and 314.2k!"

k is the symbol for the Kelvin temperature, and unlike the Celsius thermometer, which defines the temperature of the ice-water mixture as 0 degrees, Kelvin defines the absolute zero, which is -273.15 degrees Celsius, as www.biquge.info 0k, and the temperature of the ice-water mixture becomes 273.15 K in the Kelvin thermometer. Every 1k change in temperature is equivalent to a change of 1 degree Celsius.

After conversion, it can be seen that the 252.3k to 314.2k that Ma Yang just mentioned is equivalent to minus 20.85 degrees Celsius to 41.05 degrees Celsius, which is basically equivalent to the temperature of room temperature!

"Minus 20.85 degrees to 41.05 degrees?" Guo Zhenyu also quickly calculated the result, he was not only shocked, "I remember that the current highest-level superconducting materials in our country are only 153K to achieve superconductivity, right? Are you sure that the numbers in your tests are real?"

153K is equivalent to minus 120 degrees Celsius, if such a material is used as a cable for power transmission, pumps and cooling equipment must be installed every kilometer or so, and the temperature of the cable must be kept below minus 120 degrees Celsius using a cooling agent similar to liquid nitrogen, which greatly increases the cost and complexity of superconducting cable solutions.

And the recipe that Ma Yang has come up with now is not simple. This record has been raised by more than 100 degrees at once, and the temperature range of minus 20.85 degrees to 41.05 degrees Celsius is basically equivalent to the local ground temperature, except for a few extreme areas! This means that there is no need to cool down, and superconducting cables can be used for long-distance power transmission! The cost of power transmission will be greatly reduced, and the funds that can be saved for the country every year will be hundreds of billions! This will undoubtedly be a milestone invention in the history of human science and technology.

"We've been through a lot of trials. The results have been confirmed!" Ma Yang could hardly believe his eyes at the time, but no matter how he changed the actual conditions, the table of this material remained the same, "There are also a few samples in the box, you can verify them yourself!

"I now understand why you are so cautious!" Liu Guangming was full of excitement, "No matter how much such advanced technology strengthens the level of secrecy! By the way, I don't know how much the production cost of this material is?"

If the price is compared to gold, then this material is also the meaning of large-scale application, as an entrepreneur. Liu Guangming is most concerned about the cost.

"At present, it is only a first-generation product, and the price is still relatively high! So it may be unrealistic to use this material to make transmission cables in a short period of time!" Ma Yang also felt quite regretful, "However, our researchers have already started the research of second-generation products, and we have a perfect theoretical reserve, plus the current foundation! In some time, a cheaper alternative product can be developed!"

"Tsk, this is a Nobel Prize-level achievement! It's a pity to keep it secret like this!" Guo Zhenyu said regretfully from the perspective of a scientist.

"It doesn't matter, until we come up with cheaper alternatives. This kind of material can be put on the market! Second, Professor Lu has already won the Nobel Prize! The difference between one and two is not so big!" Coach, I also want to win the Nobel Prize.

As soon as these words came out, Liu Guangming and Guo Zhenyu were speechless at the same time, and if a scientist could be nominated for the Nobel Prize once, it would be enough to become a legend, let alone win an award! Any achievement that can be nominated is almost the crystallization of this scientist's lifelong efforts, and it has only been a few years since Lu Qiujian won the award. And he came up with a new award-winning achievement, which kept other physicists alive?

After being silent for a long time, Guo Zhenyu first came back to his senses, and he asked curiously, "Isn't Professor Lu in charge of the exploration of the space exploration program?

"Superconducting materials are also widely used in aerospace! Using the anti-gravity effect of superconducting launch rocket mounts can greatly save the cost of rocket launches, and if the cost of materials is reduced to a point where large-scale application can be achieved, we can even directly use vacuum superconducting pipelines to send spacecraft directly into space! In addition, superconducting satellites have a longer service life and are more powerful than conventional satellites," Ma Yang gushed about the wide application of superconducting technology in the aerospace field.

But actually. Lu Qiujian didn't plan to use these materials to make superconducting rocket launchers. Superconducting satellites, but intended to be used for the magnetic confinement of plasma, the magnetic field of the confined plasma is generated by the coil outside the vacuum chamber, the current can generally reach dozens of kiloamperes, if the conventional copper conductor is used, the power will reach the megawatt level, equivalent to the power generation power of a generator set of thermal power station, you can calculate how much heat will be generated in an hour, how much heat will be generated in a day, all of which need to be taken away by the cooling water in time, so the cost is too high!

Once full superconductivity is adopted, the coil resistance is 0, and after the current of the coil is increased to a specified value, there is no need to consume any energy in theory, and the time to maintain fusion can theoretically be infinitely long, which is necessary for the commercial application of controlled nuclear fusion in the future.

Like the ITER that Ma Yang visited in the first place, their confined magnetic field was intended to be generated using superconducting magnets, but the materials they used were far from the level of such materials. ERN's LH collision pipe is also composed of superconducting coils, which, like ITER, need to be cooled down to more than 100 degrees Celsius with a large amount of liquid nitrogen in order for the coils to produce superconductivity.

Now, however, the materials used in the Xihe program can achieve superconductivity directly at room temperature, which means that they are one step closer to the commercial application of controlled nuclear fusion. (To be continued.) )

ps: It's a black technology.