“A lot of things are not clearly stated in the email and are not convenient to put in the mail. I'll show you live and you'll see how amazing this thing really is. ”

Saying, the ark nodded to Qian Zhongming, indicating that it was ready to begin.

After receiving instructions from the ark, Qian Zhongming tapped a few buttons on the computer next to him and operated the device to import the liquid helium over the glass cover.

Almost as soon as the ultra-low temperature liquid helium comes into contact with the wire, the heat of the wire passes at an incredible speed, then quickly reaches the transition temperature, and the resistivity curve in the computer screen slides down to the bottom of the valley.

Professor Kleber's pupils contracted slightly.

From his face, you can clearly see the surprise.

“It's a little too soon to be surprised," he smiled lightly. The ark looked at Qian Zhongming and continued, “Raise the voltage. ”

“Okay.”

Proficiently operating the equipment, Qian Zhongming improved the voltage applied on both ends of the wire according to the directions of the ark.

The superconductor has three critical parameters, namely critical transition temperature Tc, critical magnetic field strength Hc, and critical current density Jc.

What Hc means is that when the magnetic field strength of the superconductor surface reaches a certain magnetic field strength Hc, it exits the superconducting state.

JC also means that when the voltage on both sides of the conductor reaches a certain value, the conductor exits the superconducting state when the current inside the superconductor exceeds the threshold.

Based on the data from the reactions in the experiment, the SG-1 material exhibited fairly excellent performance on all three critical parameters.

At least, it has far surpassed copper oxide superconducting materials.

Looking at the resistivity curve as it changes with the current, Professor Crabb's face finally shows a shocking color.

From the point of view of an engineer, he can clearly see that it is much easier to maintain this “SG-1” superconducting material at the superconducting transition temperature than to maintain the copper oxide material at the superconducting transition temperature.

Looking at Kleber, the ark continued: "In addition to these images, we looked at its atomic distribution structure under a scanning tunnel microscope, and we drew simulated images of the distribution of carbon atoms based on these data. ”

Professor Kraber asked cautiously, "Would it be convenient to show me? ”

The ark laughed and said softly, "Sure. ”

Go ahead, he continued to show Qian Zhongming and transferred the simulated images.

In analog images, carbon atoms labeled green are stacked tightly.

In a transverse structure, dense hemp carbon atoms are arranged in hexagonal shapes in spaces as wide as thousands of nanometers, just like a mesh woven from a hexalattice pattern.

On the longitudinal structure, however, the layers and layers are stacked in a slight angular misalignment, pulling out an elongated columnar structure in a vertical direction.

It's like a handicraft, and it's easy to feel it when you just look at it.

Surprised by the molecular processing technology involved, looking at the analog images on the computer screen, Professor Crabb finally couldn't help but ask, "How did you do that? ”

The ark smiled slightly and said, “We have learned from the vapor deposition method. As for how to do this, please forgive me for not disclosing this for a moment, I hope you understand. ”

In fact, the synthetic technology of a single graphene nanoband was born as early as 2012, which is not magical in itself.

A classic method of comparing these is to etch the silicon carbide surface into a groove, which serves as a substrate on which only a few nanometers wide of graphene nanoband can be formed.

Even in the latest research results, the graphene nanoband synthesis technology, carried out jointly by the Italian CNR Institute of Nanoscience and the University of Strasbourg, France, cuts the nanoband to the width of seven atoms.

Difficulties persist, however, even when the results of existing research are available for information.

For example, how to make longitudinally stacked graphene nanobands and how to adjust the angle of overlap between their layers are all issues that must be addressed.

In designing the experiment, the ship referred to the method of CNR Institute of Nanoscience, but not silicon carbide, but metal rhodium sheets of monoatomic layer thickness made from weak ligand polyvinylpyrrolidone and formaldehyde reduction, which were stacked and perforated before adjusting their overlap angle.

It has clearly proved easier to manipulate micron-scale substrates than to manipulate hexagons of several atomic widths.

And as long as the substrate is successfully obtained, it is equivalent to a mold that synthesizes this type of wire and can be reused in a laboratory or production line.

Of course, while it seems simple to say, it's actually not that simple.

This involves many complex approaches, as well as the strenuous efforts of countless scientific dogs.

Fortunately, however, this work has been accomplished.

Krabs couldn't help but ask, "What about the cost? ”

The tone of the ark is easy to say: “The main costs are concentrated on the fabrication of the substrate, and a small amount of production costs are indeed high, but according to our research, its costs are not as unacceptable as we would have thought if production had been scaled up. ”

When you hear that, the smile on Krabby's face is a little bitter: "But how long do you think it will take for industry to start taking an interest in it? ”

Industry does not decide to produce a technology because it is interesting enough, let alone hastily update its production line because ITER needs to build additional experimental stacks, unless their country has earned enough orders for them through ITER.

Or…

When high-tech companies like Microsoft suddenly discover that SG-1 materials can be used in circuit board engravings, or elsewhere, such as over-counting chips, the demand generated by downstream industries drives upstream companies to start expanding their production capacity in this area.

By then, the price of this material may not be said to have dropped.

In fact, Kleber thinks this “hair” has all this potential, but he doesn't know how long to wait for the day.

Without seeing enough profits, industry may never be interested or certain.

The Ark laughed slightly, but said less carelessly: “This is not a market economy in the full sense of the word, and the laws you say are not entirely applicable here. Industry may not be guided entirely by markets, but by something else. ”

Professor Kleber's eyebrows picked out and seemed to understand what the ark meant.

Though in his view, this is bullshit...

“You don't have to worry about mass production of SG-1 wires, in fact we've reached out to the relevant companies and the design of the production lines is in the final stages. We will be able to implement the production of SG-1 materials within a year at the latest. ”

Paused for a moment, the ark looked at Professor Kleber and said.

“Let's make a deal. ”