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Chapter 617 Room temperature superconductivity

Hearing Guo Zhenyu's question, Liu Guangming couldn't help but feel a little nervous. He didn't know 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, so he muttered softly, "How can I do my job if I don't figure out what this thing is?"

"Of course, we will definitely let you know!" Ma Yang said with a smile. He took a formula from Guo Zhenyu and said, "This is the formula of a new room temperature superconducting material. According to the data obtained from our experiments,

This material can achieve superconductivity between 252.3k and 314.2k!"

k refers to the symbol of Kelvin temperature. Unlike the Celsius thermometer which defines the temperature of the ice-water mixture as 0 degrees, Kelvin defines absolute zero, which is -273.15 degrees Celsius, as the starting point for calculation as 0k. In the Kelvin thermometer, the temperature of the ice-water mixture is defined as 0 degrees.

The temperature has become 273.15k. A change of 1k in temperature is equivalent to a change of 1 degree Celsius.

After conversion, we can know that the range between 252.3k and 314.2k that Ma Yang just mentioned is equivalent to minus 20.85 degrees to 41.05 degrees Celsius, which is basically equivalent to room temperature!

"Minus 20.85 degrees to 41.05 degrees?" Guo Zhenyu also quickly calculated the results. He was not only shocked, "I remember that the highest level of superconducting materials in our country only achieves superconducting phenomena at 153k, right? Are you sure?

Are all the test data 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 one kilometer or so, and a cooling agent similar to liquid nitrogen is used to maintain the temperature of the cable at minus 120 degrees Celsius.

The following greatly increases the cost and complexity of the superconducting cable solution; so although superconducting cables can reduce the loss of electric energy transmission for thousands of kilometers to a few percent of the current level, it is also due to the high cost of maintaining the cables.

Unable to get applied.

And the formula that Ma Yang came up with now is not simple. It suddenly improved the record by more than 100 degrees, with a temperature range of minus 20.85 degrees to 41.05 degrees. Except for a few extreme areas, this temperature

Basically equivalent to the local ground temperature

! This means that superconducting cables can be used for long-distance power transmission without cooling treatment! This will greatly reduce the cost of power transmission and save the country hundreds of billions of dollars every year! This will undoubtedly

It is a landmark invention in the history of human science and technology.

"We have gone through many tests and the results have been confirmed!" Ma Yang could hardly believe his eyes at the time, but no matter how he changed the experimental conditions, the performance of this material remained consistent. "There are also some samples in the box. You can

You can conduct your own experiments to verify it! But you still have to pay attention to confidentiality!"

"I now understand why you are so cautious!" Liu Guangming's face was filled with excitement. "No matter how advanced the technology is, the level of confidentiality cannot be overstated! By the way, I don't know how much the production cost of this material is.

?”

If the price is comparable to gold, then this material is no longer suitable for large-scale application. As an entrepreneur, Liu Guangming is most concerned about the cost issue.

"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 time!" Ma Yang also felt quite regretful, "But our researchers have already started

Through the research on second-generation products, we have a complete theoretical reserve, coupled with the current foundation! After some time, cheaper alternative products can be developed!"

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

"It doesn't matter. First, after we develop cheaper alternatives, this material can be put into the market! Secondly, Professor Lu has already won the Nobel Prize! The difference between once and twice is just

Not so big anymore!" Hey, 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. If any scientist could be nominated for the Nobel Prize, it would be enough to become a legend, let alone win the prize! Any achievement that can be nominated is almost like this.

The culmination of a lifetime of hard work by a famous scientist, and it has only been a few years since Lu Qiujian won the award. He has come up with a new award-winning result? Does this also allow other physicists to live?

After a long silence, Guo Zhenyu came to his senses first and asked curiously, "Isn't Professor Lu in charge of the research on the space exploration program? How come he is working on superconducting materials?"

"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. If the cost of materials is reduced to the point where they can be used on a large scale, we can even directly use them

The vacuum superconducting pipeline will send the spacecraft directly into space! In addition, superconducting satellites have a longer service life than conventional satellites and are more powerful." Ma Yang talked non-stop about the wide application of superconducting technology in the aerospace field.

But in fact, Lu Qiujian does not intend to use these materials to make superconducting rocket launchers or superconducting satellites, but intends to use them for magnetic confinement of plasma. The magnetic field that confines the plasma is generated by a coil outside the vacuum chamber.

, the current can generally reach dozens of kiloamps, if the

The power of conventional copper conductors will reach the megawatt level, which is equivalent to the power generated by a generator set in a thermal power station. You can calculate how much heat will be generated in an hour and how much heat will be generated in a day. All of this heat needs to be carried away by cooling water in a timely manner.

The cost of going this way is too high!

Once full superconducting is used, the coil resistance is 0. After increasing the current of the coil to a specified value, theoretically no energy is consumed. The time to maintain fusion can theoretically be infinite. This feature is the key to controllable nuclear fusion in the future.

Necessary for commercial applications.

Just like the ITER that Ma Yang visited, their confinement magnetic field plans to use superconducting magnets to generate it, but the materials they use are far from reaching the level of this material. The LH collision tube of ern is also made of superconducting magnets.

Coil composition, like iter, they need to use a large amount of liquid nitrogen to cool the superconducting coil to more than 100 degrees Celsius, so that the coil can produce superconducting phenomena.

But now it's different. The materials used in Xihe's plan can directly achieve superconductivity at room temperature, which means they are one step closer to the commercial application of controllable nuclear fusion. (To be continued.)
Chapter completed!
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