Scholar’s Advanced Technological System

Jinling Higher Institute.

Institute of Computational Materials.

He came to the lab with the canoe, sat in front of the computer and transferred the test data, Yang Xu said with emotion.

“It's incredible...”

Instead of asking where incredible it is, the ark went straight to the point: “What material is that thing? ”

“Silver," Yang Xu took a deep breath, "silver and graphene, to be exact! ”

“Silver and graphene?” Looking at Yang Xu, the Ark had some unexpected remarks: “Is that it? ”

In his impression, he seemed to have read similar papers.

Just because there's not much research on metal materials, I can't remember where I saw it for a while.

To be honest, when he heard only these two materials, he was somewhat disappointed. Though he also knew that even higher civilizations probably wouldn't pile up costs on a single wire, he didn't expect it to be so ordinary.

Yet Yang Xu looked at him silently.

“What do you mean, just these two, they're pretty good, okay? ”

As if to prove it, he tapped a few buttons on the keyboard.

Soon, a transmissive micrograph was presented on the screen.

On that image, black and gray plaques intersect, interweaving a neat and delicate texture in a planar two-dimensional space, revealing the secret under the nanoscale in that silver wire completely.

Pointing to a few key areas on the image, Yang Xu didn't explain much either. He continued to say, “Look at these places and you'll see. ”

Leaning close to the computer screen, the ark looked in the direction of his index finger.

Only silver atomic groups with particle sizes between 1 and 5 nm, approximately spherical, were seen, fitted together with a single layer of graphene with similar lateral dimensions.

Soon, the canoe's eyebrows slightly wrinkled.

Even if he had done little research on metallic materials, he could see the anomalies in them.

That's not the question of whether to do it or not.

It's a question of not doing it...

Graphene alloys based on metallic materials must be bonded between metallic nanoparticles and graphene.

At present, only the powder metallurgy technology of the cold-door can do this, but even powder metallurgy technology cannot bond graphene to silver nanoparticles to such a perfect extent.

Not to exaggerate, that silver wire, as thin as hair, is a work of art.

Yang Xu continued in a tone of emotion when he saw that the Ark had not spoken.

“Powder metallurgy is more cutting-edge and cold-door, which I don't know much about. But in 3D printing, for example, the best metal powder is about 10,000 mesh, which translates to about 13 microns. Some nanoceramic materials may use finer powders, but also at the micron level. ”

“While some laboratories can also achieve ultra-micron grinding below 20 nm… this powder is almost impossible to preserve in a normal environment, let alone bond to graphene debris. ”

It's not just hard to prepare, it's hard to screen, it's harder to save.

The higher the number of metal powders, the smaller the particle size, the easier it is to oxidize and extremely prone to reunification.

The only two seemingly viable solutions are either to disperse the powder in a special way while smelting, or to spray it directly onto the substrate by mixing it with the graphene debris while producing the powder.

Leaning against the chair, Yang Xu sighed.

“As you can see, this thing is difficult not in the technology itself, but in the production process. In fact, papers on composite materials such as AgGF, AgGO, AgFerGO, etc. can be said to have developed many years ago due to the rapid development of the electronics industry. ”

“For example, the indium tin oxide that makes mobile screens has fragile properties, and many scholars have proposed combining silver nanowires with graphene for the development of a new generation of bendable flexible screens. Based on limited experimental data, this material has excellent mechanical properties and is much less resistive than ordinary metals… When I was studying for my PhD at MIT, there was a lab over there doing this research. ”

He shifted his gaze from the screen, and the ark asked, "What happened? ”

Yang Xu shrugged: “I don't know, but I guess most of the project won't last. Indian tin oxides are not cheap, but silver is better. Even if it did, most people wouldn't use it. ”

Thinking about it, the look on the ark is a bit odd.

If silver is a luxury for mobile screens, then what is silver for wires?

But thinking that if space travel could be done, space mining would probably not be difficult, and the ark would be released.

For a civilization that possesses this technology, the value of silver is probably just a little bit more expensive than copper.

Looking at the data on the computer screen, Yang Xu's eyes filled with curiosity.

After hesitating, he finally couldn't help but ask, "Where the hell did you get this? ”

It feels the same as an ark.

In his view, that thumb-length silver thread was like a piece of art!

It is no exaggeration to say that its existence has simply subverted industry's perception of metallurgical technology.

However, the Ark did not answer his confusion, but simply replied: "State secrets, just help me do the opposite, other things know too much is not good for you. ”

The Ark did not explain the issue much, as it was not necessary at all.

Even before the Ling Yun Medal, he had nothing to explain to anyone.

Or 10,000 steps back, even if you need him to explain anything, you just need to explain it to one person.

And that happens only in one case.

That was his behaviour, which seriously jeopardized national security.

Beyond that, it is no exaggeration to say that even those responsible for his security, those responsible for keeping him confidential, do not have the authority to investigate the “secret” itself.

However, when Yang Xu looked surprised, the heart of the Ark was also glorified.

Fortunately, he only cut a small sample down.

If this guy knew he still had a bunch of this stuff, he wouldn't be shocked to doubt his life.

“Okay...”

He shrugged helplessly, and Yang Xu reluctantly accepted this assertion.

If confidentiality was involved, too much knowledge would not do him much good.

After a pause, Yang Xu continued.

“But I'm afraid it won't be easy to reverse this. At least I can't figure out how to make this thing for now. ”

Ark: “What if we loosen the silver nanoparticles to the micron scale? ”

Yang Xu hesitated and said: “The difficulty still exists, but if you are interested, we can try it. However..."

Ark: “But? ”

“But does it make sense?” Yang Xu asked, "While I admit that the resistivity characteristics of this AgGF material are excellent, given the price of silver, its industrial application prospects are almost nil. ”

It took a lot of work to figure out the mysteries of it, and at best it could produce only one “beautiful” paper.

This stuff may be of interest to researchers in general, but for Ark and Yang Xu, it doesn't really make much sense anymore.

After all, unlike mathematical physics, material science itself is an applied discipline...

Yang Xu has been thinking about this for a long time.

To be honest, there was some hesitation in his mind as to whether or not to recover the value of the technology.

Ultimately, however, the Ark made up its mind and said.

“I can't answer your question, at least not now. ”

“But intuition tells me it's worth it. ”