uranium dioxide


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Related to uranium dioxide: Uranium tetrafluoride, Uranium fluoride

uranium dioxide

n.
A black, highly toxic crystalline powder, UO2, once used in ceramic glazes and gas mantles, now used primarily to pack nuclear fuel rods.
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* practical independence from fuel sources due to the relatively small volume of nuclear fuel consumed by any nuclear power plant (for example, for a WWER-1000 reactor for 1.5 years of operation as part of a powerful power unit, only about 41 tons of uranium dioxide U[O.sub.2] inside fuel assemblies are required, at the same time, for example, for the Zmiev TPP with installed power of 2200 MW, two railway coal trains are required for only 1 day [7]);
It has been established that the corium is formed by mutual mixing of liquid uranium dioxide and liquid steels.
This is itself prepared by hydrofluorination of uranium dioxide. Reduction of UF4 with hydrogen at 1000oC produces uranium trifluoride (UF3).
"Our young people had no model similar to this facility (to copy) and they have managed to launch this highly important ring of fuel production for Bushehr nuclear power plant's reactor relying on their several-year-long efforts and innovation," Salehi said, addressing a ceremony to inaugurate the 103A Unit used for enriched uranium dioxide production in Isfahan on Saturday morning.
Last fall, Ali Akbar Salehi, the head of the Atomic Energy Organization of Iran (AEOI), asserted that a fabrication plant to make uranium dioxide fuel for power reactor fuel would soon be fully operational.
"The steam is emerging from a building that years ago was involved in converting yellowcake to natural uranium dioxide. One implication of the steam is that the building is operational as part of an effort to make fuel for the 5 MWe (megawatt electrical) reactor," the Washington-based institute said.
While presenting the Union Budget 2012-13 in Lok Sabha, Mukherjee also proposed full exemption from basic duty to Natural Gas and Liquified Natural Gas and Uranium concentrate, Sintered Uranium Dioxide in natural and pellet form.
May 26, 2008: Mohamed El Baradei, director general of the IAEA, circulates a report to the UN Security Council and the IAEA Board of Governors.[44] The report finds that Iran is withholding information critical for determining whether it is trying to produce nuclear weapons: specifically, Iranian work on high-explosive testing, missile design and the Eoe1/4Eogreen salt projectEoe1/4Y - undeclared studies concerning the conversion of uranium dioxide into UF4 (Eoe1/4Eogreen saltEoe1/4Y).[45]
Of which nation was Chief Cetchewayo a Kurt Russell - see Question 7 uranium dioxide better known as?
The company also said about 18 grams of uranium dioxide powder had spread in the accident, about five times the amount requiring an operator of nuclear facilities to report to the Ministry of Economy, Trade and Industry.
The fissionable material is divided into groups of 100 million billion uranium-235 atoms scattered within a 0.5 mm sphere of uranium dioxide. That core is coated with four containment layers.
Firstly, the colouring agent is not the unstable and radioactive uranium but the more stable uranium dioxide.