Definition & Betydelse | Engelska ordet ZIRCONIUM

Definition av ZIRCONIUM

1. zirkonium

Exempel på hur man kan använda ZIRCONIUM i en mening

• A lustrous, silvery gray, tetravalent transition metal, hafnium chemically resembles zirconium and is found in many zirconium minerals.
• First identified in 1789, isolated in impure form in 1824, and manufactured at scale by 1925, pure zirconium is a lustrous transition metal with a greyish-white color that closely resembles hafnium and, to a lesser extent, titanium.
• Homogeneous catalysts usually based on complexes of the group 4 metals titanium, zirconium or hafnium.
• Millersburg came into being in 1974, to prevent the city of Albany from attempting to extend its city limits to include where Wah Chang Corporation operated a zirconium processing plant for the United States Bureau of Mines.
• First known as the Northwest Electro-development Facility, the site eventually produced titanium and zirconium, spearheaded by William Justin Kroll whom the bureau hired in 1945.
• Unlike , which features six-coordinated titanium in all phases, monoclinic zirconia consists of seven-coordinated zirconium centres.
• In many modern flint glasses, lead oxides are replaced with other metal oxides such as titanium dioxide and zirconium dioxide without significantly altering the optical properties of the glass.
• Nautilus ship's patch was designed by The Walt Disney Company, and her wardroom currently displays a set of tableware made of zirconium, as the nuclear fuel cladding was partly made of zirconium.
• Black sand concentrates often contain additional valuables, other than precious metals: rare earth elements, thorium, titanium, tungsten, zirconium and others are often fractionated during igneous processes into a common mineral-suite that becomes black sands after weathering and erosion.
• 0% manganese and small quantities of copper, nickel, niobium, nitrogen, vanadium, chromium, molybdenum, titanium, calcium, rare-earth elements, or zirconium.
• Its list includes—in addition to copper, lead, nickel, and zinc—the following metals: iron and steel (an alloy), aluminium, tin, tungsten, molybdenum, tantalum, cobalt, bismuth, cadmium, titanium, zirconium, antimony, manganese, beryllium, chromium, germanium, vanadium, gallium, hafnium, indium, niobium, rhenium, and thallium, and their alloys.
• As is typical for early transition metals, zirconium and hafnium have only the group oxidation state of +4 as a major one, and are quite electropositive and have a less rich coordination chemistry.
• The five elements niobium, molybdenum, tantalum, tungsten and rhenium are included in all definitions, while the widest definition, including all elements with a melting point above , such as titanium, vanadium, zirconium, and chromium.
• In addition to carbon, S-process elements such as barium, technetium, and zirconium are formed in the shell flashes and are "dredged up" to the surface.
• Due to the extreme temperature range of operation required, from near absolute zero to 1600 K, the engine bells and support structure would be made of molybdenum alloyed with titanium, zirconium, and carbon, which retains strength even at cryogenic temperatures.
• no minimum content is specified or required for chromium, cobalt, molybdenum, nickel, niobium, titanium, tungsten, vanadium, zirconium, or any other element to be added to obtain a desired alloying effect;.
• Van Arkel–de Boer process – for producing titanium, zirconium, hafnium, vanadium, thorium, or protactinium.
• GCHQ therefore decided to produce a UK-designed-and-built signals intelligence satellite, to be called Zircon, a code-name derived from zirconium silicate, a diamond substitute.
• Thorium dioxide (thoria) can be used in nuclear reactors as ceramic fuel pellets, typically contained in nuclear fuel rods clad with zirconium alloys.
• Fujifilm claimed they were able to have as many as 14 layers of coating and used materials such as zirconium oxide, and cerium fluoride, which could not be used for coating in the conventional coating process.

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