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lauantai 1. maaliskuuta 2025

Microwaves are tools for the new recycling methods.

 




"This is an artistic representation of the depolymerization of aramid fibers. Credit: Dr. Dina Maniar, University of Groningen, edited." (ScitechDaily, Microwaves Unlock a Faster, Cleaner Way to Recycle Bulletproof Kevlar)


New materials require new recycling methods. Some of those methods can be suitable for weapon applications. 

Microwaves break the carbon chains in polymers. And that makes them dangerous. There are tested microwaves to destroy oil in oil damages. The microwave cuts the polymer structures. And the same systems can destroy diesel and petroleum in their storage. Things like graphene are ultimate materials but only if they can conduct energy out from them. If the energy transmitter surrounds the graphene structure and starts to send energy into its outer edge that thing causes a situation in which energy starts to travel in the middle of the graphene structure. 

In this case, the system creates a standing wave in the middle of the graphene structure. The energy level in the outer edge is higher than in the middle of the graphene, which denies the graphene's ability to remove energy from the structure. The problem with recycling is this: recycling means breaking the materials. 


Microwaves can destroy Kevlar and other carbon-based chemical structures. 


The new way to recycle bulletproof Kevlar can also give the possibility of breaking the Kevlar armor. In those systems, the microwave cuts the kevlar structure. There are tested microwaves on the battlefield whose purpose is to jam drone swarms. The same systems can destroy kevlar armor and other plastic structures like composite magazines and plastic structures in weapons. Kevlar is also structured in the super-hard ropes used to keep offshore oil platforms in their position. 

The microwave also heats metals. That means microwaves can detonate ammunition in boxes. It can affect large-scale entireties like drone swarms. The big drones are good targets for lasers and machine guns. However, the drone swarms of small-size drones require systems that can affect the entire swarm at one time. 

Kevlar is used in bulletproof vests and lightweight armor in light vehicles. The ability to break kevlar opens the route to the ammunition. And that is a big threat to the law enforcement and military operators. Kevlar is also part of the structural composite armor metal. Kevlar plates are layer over layer. The kevlar structure keeps different metals away from each other. In those structures, the harder and softer layers follow each other. 

The purpose of the softer structure is to pull impact energy and the harder structure breaks the ammunition.  And that makes composite armor more effective than traditional armor. The microwave system that impacts microwaves to the kevlar structures breaks the polymeric chains in that strong material. The microwaves can break the bulletproof vests and other armor. 

There are used polymer carbon chains. And that makes microwave systems effective tools. Also for boosting ammunition power. There are tested microwave systems whose mission is to jam the tank's counter-missile system detonate its reactive armor off the ammunition's road and heat the metal armor that offers the warhead a better way to penetrate the armor. 


https://scitechdaily.com/microwaves-unlock-a-faster-cleaner-way-to-recycle-bulletproof-kevlar/


perjantai 28. helmikuuta 2025

The new 2D carbon structure is 8 times stronger than graphene.


"Monolayer amorphous carbon is a game-changing material that combines strength with toughness, solving a key problem in 2D materials like graphene. Credit: SciTechDaily.com" (ScitechDaily, A New Carbon Super-Material Is 8x Tougher Than Graphene)

The new 2D materials are tougher than graphene. Graphene is the allotropic form of carbon. The single-atom layer makes that structure stronger. And the reason why 2D monoatomic structures are harder than regular materials is simple. When something impacts the graphene. That monoatomic structure transfers energy to a larger area. The single-atom layer transfers energy out from the structure immediately. And there is nothing that can form a standing wave in the structure. 

The new material called monolayer amorphous carbon, MAC is the thing that makes the 2D monoatomic structure tougher than graphene. The structure involves things that allow the carbon to be elastic. Or flex. And that makes the structure tougher or gives it the ability to flex. The problem with regular graphene is that the structure will not flex at all. Researchers crack the code to twist and stack 2D materials. 


"The regular octahedron and its dual polyhedron, the cube." (Wikipedia, Octahedron)

That thing opens the path to new types of solutions in mechanics and other things like electronics. The graphene layers lose their abilities when they connect. The 2D materials have their fundamental abilities only when they are in 2D structures. If those 2D structures are connected, that means their carbon structures lose their abilities. 

But if those things can remain separated that gives the new types of armor and extremely strong materials possible. The 2D carbon structures that are separated by octahedron carbon pillars can make that kind of material stronger than fullerene pillars. The octahedron pillars are their heads against each other can transport the energy straight through the graphene layers. The problem with nanotube pillars is that they form standing waves in their structure. The octahedron nanocrystals will not make that thing. In those nanocrystals are six atoms which makes them extremely small and able to transport energy straight through those layers. 



"A scanning tunneling microscopy (STM) study of moiré superlattice formation on a twisted bilayer covalent organic framework (COF). Credit: National University of Singapore" (ScitechDaily, Scientists Just Cracked the Code for Twisting and Stacking 2D Materials)




"STM images of (a) untwisted bilayer COF assembled from 2,7 PDBA; (b) twisted bilayer COF showing moiré superlattices, assembled from 1,6 PDBA. Credit: National University of Singapore" (ScitechDaily, Scientists Just Cracked the Code for Twisting and Stacking 2D Materials)


But making those things requires a system that can see how the graphene interacts in the reaction chamber. 


Imaging the Dynamic Assembly of Bilayer COFs


"Chemists from the National University of Singapore (NUS) have successfully captured real-time images of bilayer covalent organic frameworks (COFs) forming in solution. This breakthrough sheds new light on how these layers stack and how moiré superlattices emerge. " (ScitechDaily, Scientists Just Cracked the Code for Twisting and Stacking 2D Materials)

Moiré superlattices are part of the growing field of “twistronics,” where rotating one atomic layer relative to another can create new electronic properties. In this state, electrons no longer behave as independent particles but instead strongly interact with each other, potentially leading to unique forms of superconductivity or magnetism." (ScitechDaily, Scientists Just Cracked the Code for Twisting and Stacking 2D Materials)

"While moiré superlattices have been observed in inorganic materials, they are far rarer in purely organic crystals. This is because moiré patterns require materials that are both ultrathin and highly crystalline — properties that are difficult to achieve in organic materials using conventional imaging techniques." (ScitechDaily, Scientists Just Cracked the Code for Twisting and Stacking 2D Materials)



https://scitechdaily.com/a-new-carbon-super-material-is-8x-tougher-than-graphene


 https://scitechdaily.com/scientists-just-cracked-the-code-for-twisting-and-stacking-2d-materials/


https://en.wikipedia.org/wiki/Graphene


https://en.wikipedia.org/wiki/Octahedron


perjantai 20. joulukuuta 2024

Atomic spray can revolutionize material research.


"“Atomic spray painting” of potassium niobate, a material commonly used in advanced electronics onto a substrate, could enable the tuning of properties of the resulting thin film, according to a new study. Credit: Jennifer M. McCann" (ScitechDaily, Atomic Spray Painting Transforms Material Science for Greener Tech)


Atomic spray can make the next-generation 2D surfaces possible. The atom spay can deliver a single-atom layer over the surface. 

It can revolutionize things like microchips and armor technology. The atom spay can drive a single atom layer of copper to the layer. 

That makes it possible to create very thin electric wires. Those systems can used to create new economical microchips that create low temperatures. 

Resistance is one of the biggest problems with microchips. All electricity that the microchip pumps into the IR radiation wastes electricity. 


And that is one of the reasons why energy efficiency in high-power data centers is important. 


Heat causes resistance and oscillation in wires. That disturbs the data flow. Energy efficiency also makes electric bills lower. AI requires lots of electricity. And that's why the electric efficiency is important. That's why data centers should have systems that turn IR radiation into electricity. 

Or those systems are under development all around the world. Same way. Data centers require their own independent power sources like micro nuclear reactors or geothermal systems. 


The atomic spray makes it possible to create the next-generation large-size graphene surface. 


The thing that makes graphene the ultimate material is that it has only one atom layer. The thing that makes normal carbon structures fragile is that their carbon structures are not ordered. 

The overlapping atom structures allow the upper layer in regular carbon to penetrate between lower layer structures. 

Even if. The carbon structure in graphite is in lines. The impact forms standing waves to the carbon tubes. That destroys the material. There is only one carbon atom layer in graphene. And that denies lots of resonance between it and the lower surface. 

That is separated from other carbon layers. So. When something hits graphene. It conducts impact energy horizontally. That makes a graphene tool that can cut even diamonds. The graphene oscillator can send acoustic waves to the diamond structure and make diamond atoms oscillate. That can break the diamond. 

The atomic spray can turn the next-generation armor possible. The idea in those 2D atomic layers is that those layers are connected using nano-springs or DNA bites. Those multi-layer 2D graphene structures can bind the impact energy of ammunition. The lightweight armor is suitable for things like satellites. Graphene itself binds impact energy efficiently. The reason for that is when projectile impacts to graphene the 2D carbon layer conducts energy into larger areas. 

The reason for that is this. Graphene cannot conduct energy to the lower surface. And that makes it so hard. Graphene cannot cause resonation in other than carbon atoms. And that means it conducts energy horizontally. 

The multi-layer graphene can be an ultimate tool for IR stealth technology. The multi-layer graphene means that the graphene layers are separated from each other using some other materials. The layers are like pillars that are between them. 

If the aircraft lets ram-air travel between graphene layers. Or aims the laser rays through those holes between carbon atoms. That conducts energy out of the structure. The problem with graphene is that it's quite hard to cover large surfaces using this kind of material. 


https://scitechdaily.com/atomic-spray-painting-transforms-material-science-for-greener-tech/

Diseases from the past can return.

“Targeted lipid nanoparticles (blue) deliver mRNA to NK cells inside the body. Credit: MIT Natural killer cells reprogrammed inside mice eli...