. 24/7 Space News .
Scientists discover unusual materials properties at ultrahigh pressure
by Staff Writers
Moscow, Russia (SPX) Oct 21, 2020

illustration only

An international team of scientists from NUST MISIS (Russia), Linkoping University (Sweden) and University of Bayreuth (Germany) found that, contrary to the usual physical and chemical laws, the structure of some materials does not condense at ultrahigh pressures.

Actually, it forms a porous framework filled with gas molecules. This happened with samples of Os, Hf, and W put together with N in a diamond anvil at a pressure of one million atmospheres. The discovery is described in Angewandte Chemie.

"You can transform a pencil lead into diamond if you squeeze it very hard" - this fact heard by many of us in childhood sounded like a complete nonsense. However, science laws make it clear that there is no miracle: both pencil lead and diamond are formed by the same chemical element, i.e. carbon, which actually forms a different crystal structure under very high pressure. It makes sense: ar pressure the empty space between atoms decreases and the material becomes denser. Until recently, this statement could be applied to any material.

It turned out that a number of materials can become porous at ultrahigh pressure. Such a conclusion was made by a group of scientists from NUST MISIS (Russia), Linkoping University (Sweden) and University of Bayreuth (Germany).

The team examined three metals (hafnium Hf, tungsten W, and osmium Os) with an addition of N when placed in a diamond anvil at a pressure of 1 million atmospheres, which corresponds to a pressure at a depth of 2.5 thousand kilometers underground. Scientists believe that it was the combination of pressure and nitrogen N that influenced the formation of a porous framework in the crystal lattice.

"Nitrogen itself is quite inert and without ultrahigh pressure it would not react with these metals in any way. Materials without nitrogen would simply condense in a diamond anvil. However, a combination gave an amazing result: some of the nitrogen atoms formed a kind of reinforcing framework in the materials, allowing the formation of pores in the crystal lattice. Consequently, additional nitrogen molecules entered the space", said Professor Igor Abrikosov, head of the theoretical research group and NUST MISIS Laboratory for the Modeling and Development of New Materials.

The experiment was initially conducted physically by Sweden and German part of the group, and then its results were confirmed by theoretical modeling on NUST MISIS supercomputer. Scientists emphasize that the research is fundamental, i.e. materials with such properties are not yet created for specific tasks. At the moment, the very fact that previously unthinkable modifications of materials can be obtained is important.

A whole new step will be to preserve such materials at normal atmospheric pressure. In one of the previous works, scientists managed to preserve a special modification of rhenium nitride. Currently, rapid cooling to critical low temperatures is considered as one of the ways to stabilize new materials.

Research paper

Related Links
National University Of Science And Technology
Space Technology News - Applications and Research

Thanks for being there;
We need your help. The SpaceDaily news network continues to grow but revenues have never been harder to maintain.

With the rise of Ad Blockers, and Facebook - our traditional revenue sources via quality network advertising continues to decline. And unlike so many other news sites, we don't have a paywall - with those annoying usernames and passwords.

Our news coverage takes time and effort to publish 365 days a year.

If you find our news sites informative and useful then please consider becoming a regular supporter or for now make a one off contribution.
SpaceDaily Monthly Supporter
$5+ Billed Monthly

paypal only
SpaceDaily Contributor
$5 Billed Once

credit card or paypal

When honey flows faster than water
Espoo, Finland (SPX) Oct 19, 2020
It's widely known that thick, viscous liquids - like honey - flow more slowly than low-viscosity liquids, like water. Researchers were surprised to find this behaviour flipped on its head when the liquids flow through chemically coated capillaries. In fact, through these specially coated tubes, liquids a thousand times more viscous flow ten times faster. The speed at which different fluids flow through pipes is important for a large range of applications: from industrial processes such as oil refi ... read more

Comment using your Disqus, Facebook, Google or Twitter login.

Share this article via these popular social media networks
del.icio.usdel.icio.us DiggDigg RedditReddit GoogleGoogle

Air leak rate at Russia's ISS Zvezda module halves after crack sealed with tape

Twenty years of human presence on Space Station

Landing Coverage Set for NASA Astronaut Chris Cassidy, Space Station Crew

Orion spacecraft ready to return humans to deep space, officials say

Swedish Space Corporation to launch satellites from Esrange Space Center

Lockheed Martin to Acquire i3 Hypersonics Portfolio

Arianespace offers new shared smallsat payload opportunities on its Vega launcher

Asteroid sampling technology tested on Blue Origin's suborbital rocket

This transforming rover can explore the toughest terrain

Airbus to bring first Mars samples to Earth

NASA, JAXA to Send Sampling Technology to Moon and Phobos

China's Mars probe completes deep-space maneuver

China's Xichang launch center to carry out 10 missions by end of March

Eighteen new astronauts chosen for China's space station mission

NASA chief warns Congress about Chinese space station

China's new carrier rocket available for public view

SpaceX launches 14th batch of Starlink satellites

A new decade of European exploration

Consultation on draft insurance and liabilities requirements to implement the Space Industry Act 2018

Spaceflight Inc. updates on next Electron and PSLV missions to expand smallsat constellations

When honey flows faster than water

Western Australia to host space communications station

Astroscale Brings Total Capital Raised to U.S. $191 Million, Closing Series E Funding Round

Microwave lenses harnessed for multi-beam forming

No social distancing at the beginning of life

Vaporized metal in the air of an exoplanet

Massive stars are factories for ingredients to life

New research explores how super flares affect planets' habitability

Arrokoth: Flattening of a snowman

SwRI study describes discovery of close binary trans-Neptunian object

JPL meets unique challenge, delivers radar hardware for Jupiter Mission

Astronomers characterize Uranian moons using new imaging analysis

The content herein, unless otherwise known to be public domain, are Copyright 1995-2024 - Space Media Network. All websites are published in Australia and are solely subject to Australian law and governed by Fair Use principals for news reporting and research purposes. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA news reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. All articles labeled "by Staff Writers" include reports supplied to Space Media Network by industry news wires, PR agencies, corporate press officers and the like. Such articles are individually curated and edited by Space Media Network staff on the basis of the report's information value to our industry and professional readership. Advertising does not imply endorsement, agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. General Data Protection Regulation (GDPR) Statement Our advertisers use various cookies and the like to deliver the best ad banner available at one time. All network advertising suppliers have GDPR policies (Legitimate Interest) that conform with EU regulations for data collection. By using our websites you consent to cookie based advertising. If you do not agree with this then you must stop using the websites from May 25, 2018. Privacy Statement. Additional information can be found here at About Us.