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Raising the temperature of metal minerals can better remove impurities, which is conducive to the subsequent magnetic separation work.

After one hour of ball milling, the size of the minerals has been ball milled to the micron scale.

Such a small size is enough for the next magnetic separation.

After continuous debugging, Xu You and others determined the best magnetic field conditions and successfully raised the purity of the new iron to over 95%.

This kind of purity, under the current conditions, is already considered a very good data.

Because most of the minerals are formed by attachment and embedded in the growth.

The morphological structure of their phases is dense, the texture is hard, the chemical properties are relatively stable, and they are basically isotropic.

Therefore, it is impossible to achieve very high purity and completely separate minerals only by means of direct magnetic separation.

"Professor Xu, apart from the new type of iron, the substances we separated are mainly various iron-containing oxides. To further separate them, we need to think of some other methods."

Xu You also knew that if he wanted to continue to pass the adjustment of the magnetic field, he could no longer improve the purity of the new iron.

And once it is purified by chemical means, it is true that the iron oxides can react, but it will cause damage to the structure of the new iron.

Faced with this question, everyone fell into contemplation for a while.

At this time, Lin Shi suddenly said:

"Teacher, do you think this new type of iron is also a superconductor?"

Lin Shi's words awakened Xu You again.

"Superconductors... yes!"

Xu You remembered that in the various iron cluster experiments he had done before, a large part of the iron clusters had the properties of superconductors.

And this new type of iron, which is similar to iron clusters, may indeed have the properties of a superconductor.

Thinking of this, Xu You immediately entered the state of brain simulation and began to analyze the superconducting properties of this substance.

Because the experimental data is very limited, it is difficult for Xu You at this time to analyze all the possible properties of the material only through the structure of the material.

However, in the field of the properties of superconductors, Xu You has full confidence.

Over the past few years, the superconductor experiments that Xu You has done can be said to be innumerable.

As long as Xu You is given a material structure, Xu You can accurately judge whether it has the properties of a superconductor and its superconducting critical temperature.

"Sure enough, the new type of iron is also a superconductor!"

After some rigorous simulations, Xu You finally affirmed this property of the new type of iron.

At this time, everyone didn't know that Xu You had just successfully determined the superconducting properties of the new type of iron through brain simulations.

Seeing everyone looking at him suspiciously, Xu You said:

"What Lin Shi said just now reminded me that from my experience, the new type of iron is indeed very likely to be a kind of superconductor. If this property can be confirmed, then it is not worthwhile to continue to improve the purity of the new type of iron. What a difficult task. Even, in theory, we can directly increase the purity of the new type of iron to 100%!"

Among the experts present, except for Xu You and Lin Shi, no one has been involved in the field of superconductors.

After listening to Xu You's words, Lin Shi also understood what Xu You meant.

"Teacher, you mean, you can make minerals reach the superconducting critical temperature, and use the three special properties of superconductors to achieve the purpose of purification?"

"That's right, that's it. In the superconducting state, the three special properties of superconductors can help us complete the separation of substances."

The three characteristics of superconductors mentioned by Xu You and Lin Shi refer to the properties of complete conductivity, complete diamagnetism, and flux quantization.

At the same temperature, other iron oxides do not have the special properties of these superconductors, so it is easier to use the difference in properties to complete the separation.

Among them, because it does not involve any chemical changes, nor does it involve changes in the state of matter, it will not affect the structure of the new iron.

Xu You explained the reason for everyone, which made everyone suddenly realize.

At this time, Xu You once again felt the importance of being proficient in multiple fields at the same time.

If you are only an expert in materials science, it is difficult to think of using the properties of superconductivity to complete the separation of substances.

In terms of the concept of cultivating talents, students must not be limited to a small field, but should look far away and have a sufficient understanding of knowledge in multiple fields as much as possible.

Xu You himself is such an interdisciplinary talent, and Xu You has always been adhering to similar ideas in the training of Lin Shi and others.

Facts have proved that such a direction is the most appropriate direction.

After determining the next step, the next thing everyone needs to do is to determine whether the new type of iron is really a superconductor.

After coming to the conclusion of the brain simulation just now, Xu You no longer doubted this conclusion.

"Teacher, let's conduct a superconductor test first to determine whether the new type of iron is a superconductor?" Lin Shi asked.

"Before the 100% pure new iron is obtained, the superconducting properties of the new iron cannot be accurately measured. Instead of measuring the superconducting properties of the new iron, it is better to assume that it is a superconductor and directly conduct An experiment in the separation of matter."

"But teacher, how can we estimate its superconducting critical temperature if we don't test it first?"

"Don't worry, I have my own way."

Seeing that Xu You was so sure, Lin Shi no longer had any doubts.

Over the years, as long as Xu You is confident in doing something, there has never been a failure.

After confirming the next step of the experimental plan, Xu You brought everyone together to Jijing University, where he was in his laboratory.

Here, there is the best superconductor laboratory in the world, as well as various state-of-the-art equipment.

Back then, Xu You relied on his own high-temperature superconducting mechanism to turn out to be born and won the Nobel Prize in Physics that year.

Seeing Xu You and Lin Shi's sudden return, the teachers and students in the laboratory were a little surprised.

Xu You didn't explain too much about this, after all, these tasks are still classified.

"Lin Shi, prepare for the experiment."

"Okay, teacher."

Because this experiment is not too complicated, only Xu You and Lin Shi are enough to complete the whole experiment.

Experts from other project teams didn't know much about superconductor experiments, so they didn't intervene in Xu You and Lin Shi's experiments, and watched the experiments quietly from the sidelines.

"Lin Shi, this time we can use liquid nitrogen as the coolant."

Hearing Xu You's words, Lin Shi was taken aback.

"Teacher, is there really no need to prepare liquid helium?"