Sentences with phrase «zirconia in»

Made from rhodium plated brass, these stunning chandelier drop dangle earrings are accentuated by glittering, clear and color cubic zirconia in a splendid combination of round, marquise, and baguette cut stones.
In elegant 18K gold plating, the dazzling ring boasts a row of emerald - cut cubic zirconia in the center, and 2 rows of round cut cubic zirconia.
A stunning rectangle faceted cubic zirconia in a four - prong setting centers a sterling silver ring that will make the perfect gift for you or yours.
Emerald - color cubic zirconia in multi-prong setting.
A brilliant - cut.75 cttw cubic zirconia in a 4 - prong setting creates a breathtaking design that is sure to put a smile on her face.
Enter for a chance to win one set of Touchstone Crystal Monte Carlo Earrings are 1.7 carat petite studs made from Swarovski zirconia in sterling silver and a rhodium plated.
Units 1 and 3 have experienced explosions that destroyed exterior walls, apparently from buildups of hydrogen gas produced by the zirconium in the fuel rods reacting with coolant water at extremely high temperatures — but the interior containment vessels there thus far seem to be intact.

Not exact matches

Perth - based Alkane Resources has announced plans to raise up to $ 16 million from investors to progress its Dubbo zirconia project in New South Wales.
Alkane Resources has hired Finnish technology services supplier Outotec to provide early contractor involvement work at its Dubbo zirconia project in New South Wales.
PERTH - based junior gold producer Alkane Exploration NL plans to become a significant player in the zirconia industry.
«I really like having the assistance of the medical staff,» says Andrew Bell, a third - generation camp director at Camp Mondamin, a boys» camp in Zirconia that was founded by Bell's grandfather in 1922.
With a range of cubic zirconia set styles in 10kt yellow gold or sterling silver, we have something to suit any bracelet.
In total, there are 700 cubic zirconia stones on this chain.
The spent fuel pool is dry and there appears to be a zirconium fire in the spent fuel pool of Unit 4.»
This in turn caused proton migration from GO through the zirconia (see image).
This had been done before by other researchers, but in this case, the zirconium complexes were slightly smaller than usual, allowing them to snuggle a bit closer to each other and to the nitrogen.
The zirconium sapped the loyalty of the electrons bonding the nitrogen pairs, weakening the link between the two atoms and letting hydrogen weasel in and latch onto the nitrogen.
Paul Chirik and colleagues at Cornell University in Ithaca, New York, inserted nitrogen molecules between two zirconium metal complexes.
However, Yaghi says his group has already had early success in designing water - grabbing MOFs that replace zirconium with aluminum, a metal that is 100 times cheaper.
Enriched uranium is manufactured into fuel rods that are encased in metal cladding made of alloys such as zirconium.
The material the scientists worked with, zirconium pentatelluride, has a surprising trait: When placed in parallel electric and magnetic fields, it responds with an imbalance in the number of right - and left - handed particles — a chiral imbalance.
The 3.7 - meter - long nuclear fuel used at Fukushima is composed of uranium oxide pellets encased in a zirconium cladding.
Working with graduate student Atakan Peker, Johnson zeroed in on an alloy with five elements: zirconium, titanium, nickel, copper, and beryllium.
In the absence of magnetic and electric fields, zirconium pentatelluride has an even split of right - and left - handed quasiparticles.
Back in Pasadena, down the hall from Johnson's office, Jason Kang is investigating that sweet spot in the realm of titanium - zirconium — based amorphous alloys similar to Liquidmetal2.
The fuel rods in most cases consist of uranium dioxide pellets encased in zirconium alloy tubes or cladding.
«The fuel rods are long uranium rods clad in a [zirconium alloy casing].
A report to Congress in 2006 by a National Research Council panel investigating terrorist threats to spent fuel storage concluded that «under some conditions,» if a pool were partially or completely drained, that «could lead to a propagating zirconium cladding fire and the release of large quantities of radioactive materials to the environment.»
The question that should be asked is why zirconium is still used in cladding for nuclear fuel rods after being implicated in the Three Mile Island disaster.
«So it's not surprising that when the water [was] no longer circulating that the water was actually boiled off in a zirconium exothermic reaction, that the zirconium burned» (occurring at about 1,800 degrees Celsius).
That hydrogen buildup was the result of hot steam coming into contact with overheated nuclear fuel rods covered by a cladding of zirconium alloy, or «zircaloy» — the material used as fuel - rod cladding in all water - cooled nuclear reactors, which constitute more than 90 percent of the world's power reactors.
They also tested the zirconium cluster alone, without the cluster being in the MOF structure, and the catalyst was not as effective at degrading the nerve agent.
The zirconium node selectively clips the phosphate - ester bond in the nerve agent, rendering it innocuous.
The material, a zirconium - based metal - organic framework (MOF), degrades in minutes one of the most toxic chemical agents known to humankind: Soman (GD), a more toxic relative of sarin.
Hundreds of kilometres down, zirconium ions drift in magma droplets through the slowly creeping molten rock.
For instance, in order to grow ultra-pure diamond layers, the methane that provides the carbon for the diamond is pre-filtered using a zirconium filter.
Rather than the pellets of uranium oxide used in other fast reactors and conventional reactors as fuel, GE would fabricate metal alloy fuels, with the plutonium or uranium mixed with zirconium metal.
The doping could be accomplished by incorporating a small amount of the dopant metal into the initial zirconium alloy matrix, so that this in turn gets incorporated into the oxidation layer that naturally forms on the metal, the team says.
The team's analysis focused on zirconium alloys, which are widely used in the nuclear industry, but the basic principles they found could apply to many metallic alloys used in other energy systems and infrastructure applications, the researchers say.
But by coating the metal particles used to 3D print components with zirconium nanoparticles, researchers at HRL Laboratories in California have found a way to create a crystalline framework for the molten alloy to follow as it cools (Nature, doi.org/cdhp).
They have new methods, and there's actually a firm out in Minnesota that's working on this using a zirconium - based catalysis for breaking up membrane lipid into biodiesel.
It utilizes the same 10 x 10 lattice design used in GNF2, and employs GNF's NSF (1.0 % niobium - 1.0 % tin - 0.35 % iron) zirconium alloy channel material which GNF says significantly reduces fuel channel distortion compared to typical zircaloy based channel materials.
Eventually, a stable rocky crust may have developed between Years 0.2 and 0.4 billion (see J. Bret Bennington's discussion of recycled zircons (crystals of zirconium silicate) from the rocks of western Australia in the Hadean Eon and the January 11, 2001 announcement of zircons found north of Perth that appear to be 4.4 billion years old), covered and surrounded by soupy water that was already rich with organic compounds from interstellar space.
The zirconium - based NU - 1000 is not only useful not only disposing of stockpiles of such toxins, but also for use in gas masks and protective suits for soldiers and rescue workers.
Nuclear - grade zirconium alloys and products are used in the fabrication of fuel assemblies, which are used in the vast majority of nuclear reactor designs either currently operating, under construction, or planned around the world.
Carroll, M.C., M.R. Tonks, T.M. Lillo, B.S. Fromm, D.C. Haggard, T.C. Morris, W.D. Swank, T.L. Trowbridge, and L.J. Carroll., «Characteristics of Interconnected d - Hydride Precipitates in Zirconium,» (in submission).
These documents also indicate that the fuel used in the PRISM reactor will contain a combination of recycled uranium, plutonium and zirconium.
Orientation mapping of extended hydride structures in zirconium exposed to a pure hydrogen environment at cycling elevated temperatures.
All other sodium reactors use oxide fuels, while PRISM uses a metal fuel, an alloy of zirconium, uranium, and plutonium, and the fuel rods sit in a bath of liquid sodium at atmospheric pressure.
Unlike the current generation of light - water nuclear reactors, PRISM uses metallic fuel, such as an alloy of zirconium, uranium, and plutonium, and PRISM's fuel rods sit in a bath of a liquid metal — sodium — at atmospheric pressure, which ensures that the transfer of heat from the metal fuel to the liquid sodium coolant is extremely efficient.
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