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Originally posted by Arbitrageur
I'm not sure if my interpretation is correct, but it sounds like the volume of the solid only is increased. When considering the fluid also, total volume (solid + fluid) under pressure decreased, and this is not counter-intuitive, it's what I would expect.
PS. Why is this in "Space Exploration"?edit on 14-6-2013 by Arbitrageur because: clarification
Originally posted by theabsolutetruth
reply to post by Arbitrageur
Whilst the headline might sound sensational, it is accurate, in that the 5 new states are defying known physics, this is a fact. Under current physics laws the pressure exerted on the Zinc Cyanide should have produced a known typical reaction, that it didn't defies that which is currently known as physics.
Originally posted by KawRider9
Can some please post a "dummies version" of this thread? Just spent five minutes reading through this thread and have no clue what is going on. Either the meds for my broken leg are affecting my brain or this topic is waaaay over my head.
Originally posted by theabsolutetruth
reply to post by PhoenixOD
The report details ''5 new phases'' of the material, and mentions varying pressure, it appears the variants are: materials, pressure and chemicals used in the pressure process, giving a variation of porosity within the 5 new phases.
Which suggests the expansion reactions start occurring at varying points whilst under pressure and perhaps stabilising or fulfilling their porosity potential after the pressure application.
Originally posted by theabsolutetruth
A very interesting development in the world of physics and a step closer to truly understanding matter, it's properties and potential.
Originally posted by FyreByrd
Originally posted by theabsolutetruth
A very interesting development in the world of physics and a step closer to truly understanding matter, it's properties and potential.
This is huge and brings to mind questions - lots of questions about water that I want to put out there (here?) before I have to leave (only time to read first page of comments) so I don't forget them in the day-to-day stuff.
Could this be an explaination for why Water gets denser when it gets colder?
I ask because I recall (long time ago) that Heat and Pressure are somewhat interchangeable?
Only Zinc Arsenic (?) was used to make these new 5 materials correct? It was the fluid the material was suspended in that caused the different states? and size/shape of lattice hole (?)? Did the fluid affect the two forms that were stable at normal pressures?
Does Heat affect the process?
Simply fascinating.
The scientists put zinc cyanide, a material used in electroplating, in a diamond-anvil cell at the Advanced Photon Source (APS) at Argonne and applied high pressures of 0.9 to 1.8 gigapascals, or about 9,000 to 18,000 times the pressure of the atmosphere at sea level. This high pressure is within the range affordably reproducible by industry for bulk storage systems. By using different fluids around the material as it was squeezed, the scientists were able to create five new phases of material, two of which retained their new porous ability at normal pressure. The type of fluid used determined the shape of the sponge-like pores. This is the first time that hydrostatic pressure has been able to make dense materials with interpenetrated atomic frameworks into novel porous materials.Several series of in situ high-pressure X-ray powder diffraction experiments were performed at the 1-BM, 11-ID-B, and 17-BM beamlines of the APS to study the material transitions.
“By applying pressure, we were able to transform a normally dense, nonporous material into a range of new porous materials that can hold twice as much stuff,” Chapman said. “This counterintuitive discovery will likely double the amount of available porous framework materials, which will greatly expand their use in pharmaceutical delivery, sequestration, material separation and catalysis.”
The scientists will continue to test the new technique on other materials.
The research is funded by the U.S. Department of Energy’s Office of Science.
Researchers at Penn State University have discovered that a nanoparticle composed of nickel and phosphorus can catalyze a chemical reaction that generates hydrogen from water.
Cheaper clean-energy technologies could be made possible thanks to a new discovery. Led by Raymond Schaak, a professor of chemistry at Penn State University, research team members have found that an important chemical reaction that generates hydrogen from water is effectively triggered — or catalyzed — by a nanoparticle composed of nickel and phosphorus, two inexpensive elements that are abundant on Earth. The results of the research are published in the Journal of the American Chemical Society.
“Nanoparticle technology has already started to open the door to cheaper and cleaner energy that is also efficient and useful,” Schaak said. “The goal now is to further improve the performance of these nanoparticles and to understand what makes them function the way they do. Also, our team members believe that our success with nickel phosphide can pave the way toward the discovery of other new catalysts that also are comprised of Earth-abundant materials. Insights from this discovery may lead to even better catalysts in the future.”
I'm not sure how much it's like dissolving, but aside from that, your description is how I see it too and it's not counter-intuitive to me either.
Originally posted by EasyPleaseMe
I personally don't find it counter intuitive for a material to behave in this way.
The sample is basically assuming a form that best dissipates the pressure throughout its structure and in this form the sample structure sits between the molecules in the bulk liquid, a little like dissolving .
That's what they did in this experiment, if you consider the fluid also.
Originally posted by TrueBrit
So, to recap, under normal circumstances, applying pressure to something is supposed to make it denser, more compact.
If you disregard the fluid, you could say this, but they used fluid, so why would you disregard the fluid?
However, essentially what this new discovery means, is that scientists have developed a way of making pressure cause an EXPANSION , a decrease in density, an increase in the size of the resultant object.
Originally posted by Agree2Disagree
I love this! Great stuff!
I wish we had a better term for "laws" of physics though....If the scientific community allowed, I'd call them "standard observations" of physics....because that's exactly what they are....We see things behave in a particular manner and that's what we call a "law" but it's not necessarily a law....Just like electrons that behave like particles when observed but more like waves when not observed(wave-particle duality).....
But I have hope that quantum mechanics will shatter most of these "laws" and give us a much better, yet ridiculously more complex, understanding of our state of reality....
Good find! s&f
A2Dedit on 15-6-2013 by Agree2Disagree because: (no reason given)