Chapter 529: Once Again Woke Up by You
Heating the metal minerals can better remove impurities and facilitate subsequent magnetic separation.
After one hour of ball milling, the size of the mineral has been ball milled to the micron scale.
Such a tiny size is enough for the subsequent magnetic separation.
After continuous debugging, Xu You and others determined the optimal magnetic field conditions and successfully increased the purity of the new iron to more than 95 percent.
Under the current conditions, this level of purity is already very good data.
Because most of the minerals in it are formed in an attached and embedded manner.
Their phases have dense morphological structures, hard textures, relatively stable chemical properties, and are basically isotropic.
Therefore, it is not possible to achieve very high purity and completely separate minerals using direct magnetic separation alone.
"Professor Xu, the substances we separated, in addition to the new type of iron, are mainly various iron-containing oxides. If we want to further separate them, we need to think of some other methods."
Xu You also knew that it was no longer possible to improve the purity of the new iron by continuing to adjust the magnetic field.
However, once chemical methods are used for purification, the iron oxide can indeed react, but it will destroy the structure of the new iron.
Faced with this question, everyone fell into deep thought 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 suddenly awakened Xu You.
"Superconductor...yes!"
Xu You remembered that in the various iron atom cluster experiments he had done before, a large portion of the iron atom clusters had the properties of superconductors.
This new type of iron, which is similar to iron atom clusters, may indeed have the properties of a superconductor.
Thinking of this, Xu You immediately entered the brain simulation state and began to analyze the superconducting properties of this material.
Because the experimental data was very limited, it was difficult for Xu You to analyze all the possible properties of a substance simply by its structure.
However, Xu You has full confidence in the properties of superconductors.
In the past few years, Xu You has conducted countless superconductor experiments.
As long as Xu You is given a material structure, he can accurately determine 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 simulation, Xu You finally confirmed this property of the new iron.
At this time, no one knew that Xu You had just successfully determined the superconducting properties of the new type of iron simply through brain simulation.
Seeing that everyone was looking at him in confusion, Xu You said:
"Lin Shi's words just now reminded me that, based on my experience, the new type of iron is indeed very likely to be a superconductor. If we can confirm this property, then it won't be difficult to continue to improve the purity of the new type of iron. In theory, we directly increase the purity of the new type of iron to 100%!"
Among the experts present, except Xu You and Lin Shi, none of them had touched upon the field of superconductors.
After listening to Xu You's words, Lin Shi also understood what Xu You meant.
"Teacher, you mean that we can make the minerals reach the superconducting critical temperature and use the three special properties of superconductors to achieve the purpose of purification, right?"
"Yes, that's right. In the superconducting state, the three special properties of superconductors can help us separate matter."
The three characteristics of superconductors mentioned by Xu You and Lin Shi refer to the properties of perfect conductivity, complete diamagnetism, and flux quantization.
At the same temperature, other iron oxides do not have the special properties of these superconductors, so they can be separated more easily by utilizing the differences in properties.
This does not involve any chemical changes or changes in physical state, and will not affect the structure of the new iron.
Xu You explained the reason to everyone, and then everyone suddenly realized it.
At this moment, Xu You once again felt the importance of being proficient in multiple fields at the same time.
If you are just an expert in materials science, it would be difficult to think of using the properties of superconductivity to separate matter.
In terms of the concept of cultivating talents, students must not be limited to a small field, but should look further ahead and have sufficient understanding of knowledge in as many fields as possible.
Xu You himself is such a cross-talented person, and in the training of Lin Shi and others, Xu You has always adhered to a similar philosophy.
Facts have proved that this direction is the most appropriate direction.
After determining the next plan, the next thing we need to do is to determine whether the new type of iron is indeed a superconductor.
After reaching the conclusion of the brain simulation just now, Xu You no longer doubted this conclusion.
"Teacher, let's first conduct a superconductor measurement experiment to determine whether the new type of iron is a superconductor?" Lin Shi asked.
“Before we get a 100% pure new type of iron, we can’t accurately measure its superconducting properties. Instead of measuring its superconducting properties first, we should assume it is a superconductor and conduct experiments to separate the material directly.”
"But teacher, if we don't conduct a superconductor experiment first, how can we estimate its superconducting critical temperature?"
"Don't worry, I have my own way."
Seeing Xu You so sure, Lin Shi no longer had any doubts.
Over the years, as long as Xu You had the confidence to do something, he would never fail.
After determining the next experimental plan, Xu You brought everyone to Jijing University and his laboratory.
Here, there is the world's best superconductor laboratory and various advanced equipment.
Back then, Xu You emerged from nowhere and won the Nobel Prize in Physics thanks to his high-temperature superconductivity mechanism.
The teachers and students in the laboratory were a little surprised to see Xu You and Lin Shi suddenly come back.
Xu You did not give too much explanation for this, after all, these works are still confidential.
"Lin Shi, get ready for the experiment."
"Yes, teacher."
Because this experiment is not too complicated, Xu You and Lin Shi alone are enough to complete the entire experiment.
The experts from other project teams did not interfere with Xu You and Lin Shi's experiments because they were not familiar with superconductor experiments. They just watched the experiments proceed quietly from the sidelines.
"Lin Shi, we can just use liquid nitrogen as the coolant this time."
Lin Shi was stunned when she heard Xu You's words.
"Teacher , do we really not need to prepare liquid helium?"
