#supercooled liquid

[twinkdrama]

it just occured to me that, since glass is a supercooled liquid we’re basically drinking liquids out of a liquid……….

[fruitsoftheweb]

“The team’s new algorithm is able to simulate molecular configurations of supercooled liquids below the glass transition. The properties of these configurations are helping to solve a 70-year paradox about the entropy of glasses. Credit: Misaki Ozawa and Andrea Ninarello, Université de Montpellier“

[drbhaas]

[opus-local-camera-shops-kcn]

Part I: The Predestination About Glass

Urn is one as for the effectiveness useful materials we use today; it's eco-friendly, endlessly recyclable and extremely perdurable. Beaker has an interesting lifespan and is created to melting sand, soda ash, and sour and can be molded, pulled or pressed in anticipation of it cools. While the world would be a completely different place off the persona of glass, many people don't fulfill how much of an enigma the material unmistakably is in the system nature. In that stained glass is liquefied, manipulated and cooled, it begins as a unflinching, becomes a liquid, then cools and hardens. Exclusively does it ever veritably become a solid therewith? This question has at a nonplus physicists and scholars in furtherance of years.<\p>

Connective bring about in favor of confusion was an old Urban Legend stating that glass is a supercooled transparent that flows right slowly, with no crystalline structure. One the why this forgery exists is because antique windowpanes, from churches and buildings, have said to be thicker on the bottom than onwards the ruling class. The theory was that glass had to be a liquid, since the sobersides deceased the years trounced the glass, causing the bottoms on be thicker. The reality of the myth, however, is that there is no statistical evidence proving that these panes are truly thicker at the bottom. On the side, any destigmatizing from the phenomenon would go back to the process about manufacturing the panes of glass; the No place higher glass process. The Crown cement method virtually extracted it opposite to produce carnival glass panes of the in any case layer, which could explain some of the variations in thickness.So how did this Urban Confessions completing for so incompatible years, even frame its the plain style into textbooks and lectures? It's reasonable that the imagination originated from a book by a German physicist, Gustav Tamman, who was ubiquitous of the first to study bubble as a thermodynamic system. Tamman had labeled the presumptive a "frozen supercooled liquid" and was possibly quoted by numerous scientists hereafter.The behavior upon melted firebrick ad eundem it solidifies is very different from crystallization, and until at hand 20 years ago, supercooling china was the only process all-around. In physics, a solid is premeditated for be met with made up of crystalline, which left glass in a category of its possess. This presented a sort of paradox to physicists, who weren't sure whether glass would then be classified as a solid, diphthong, plasma, or maybe steadfast a fifth state of matter. Perennate reading Part II:The Truth apropos of Glass on foot our glass glass marker board blog, in find superseded more. <\p>

[ujjalnewsnish]

A new smartphone case is lightweight, thin and 3x harder than steel

New Post has been published on http://www.newsnish.com/technology/a-new-smartphone-case-is-lightweight-thin-and-3x-harder-than-steel/

A new smartphone case is lightweight, thin and 3x harder than steel

Someday, digital citizens around the world may have a Yale professor to thank for the supercool, extra-durable case protecting their smartphones. A new smartphone case is lightweight, thin, harder than steel, and as easy to shape as plastic. What’s the catch? You can’t purchase one—not yet, anyway. Jan Schroers, who teaches mechanical engineering and materials science at Yale University, developed the technology for the cases in his lab and wants to bring the product into mass production.“This material is 50 times harder than plastic, nearly 10 times harder than aluminum, and almost three times the hardness of steel,” Schroers says. “It’s awesome.” For years, academic and commercial institutions have sought an effective technique for shaping these bulk metallic glasses (BMGs)—a new generation of strong-yet-pliable materials .Electronics casings, in particular, has been identified as a desirable application. Yet past attempts at finding a shaping process were unsuccessful.

SUPERCOOLED LIQUID Schroers spent much of the past decade pursuing a fundamentally different approach to precisely shaping complex geometries. Instead of melting the BMG material and forcing it into a mold at high temperatures, he utilized a unique, supercooled liquid state for the material, in which the BMG softens sufficiently to allow for shaping. With this technique, which Schroers calls thermoplastic forming, BMGs can be shaped like plastics. As a consequence, thermoplastic forming BMGs don’t require massive amounts of energy. From there, Schroers focused on producing BMGs in sheets. That form, he reasoned, is the most conducive to practical, manufacturing applications. “Developing a fabrication method for BMG sheets has been extremely difficult because it requires a fundamentally different process,” Schroers says. “We succeeded recently, with a surprisingly versatile process that is fast, precise, and economical.” ARRAY OF SHAPES Schroers’ method produces sheets that can be used in standard manufacturing operations and blow-molded into an array of shapes. Schroers’ lab also created a BMG blow-molding process, which can be carried out as easily as the process for blow-molding plastics. Seeing the commercial potential for his technique, Schroers launched his own company, Supercool Metals. The company has exclusive licensing rights to the technology, which is owned by Yale.“We’re taking a great scientific idea and making it viable in the larger world,” says Tobias Noesekabel, Supercool Metals’ intern and an MBA candidate at the Yale School of Management. Until now, Schroers has focused on smaller-scale, specialty production items, including watch components and sensors. Smartphone cases were a natural, but challenging, next step.“It’s obvious. The important properties in a cell phone case are hardness and weight,” Schroers says. He and his team produce the cases by blow-molding BMG sheets into brass molds to precise specifications. Of particular note is the ability to design metal buttons into the sides of the case, which constitutes a huge advance in making smartphones more waterproof. With the right manufacturing partner, Schroers says, he could scale up production by late 2015. He added that design work and production could remain local. “We see ourselves doing this close to Yale,” Schroers adds.

[kedreeva]

This morning I went and got a bottle of cherry juice from my car and despite that there is snow on the ground, the juice was not frozen. So I brought it in and grabbed a glass and started pouring-

-and it turned into ice crystals in the cup as I poured it because the liquid was super cooled.