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ZIRCONIUM DIOXIDE [2 records]

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Alphabetical list of terms

Record 1 2018-07-17

English

Subject field(s)
  • Gemmology
  • Jewellery
CONT

... the first truly successful diamond simulant, "cubic zirconia. "Also known by the acronym "CZ, ""cubic zirconia" is zirconium dioxide that is synthesized in a laboratory. The "cubic" part of the name indicates that the zirconia has been produced to form in cubic crystals, like diamond. This is not typical for zirconia-its stable form is monoclinic crystals... A special stabilizer must be used to grow zirconia in cubic crystals.

French

Domaine(s)
  • Gemmologie
  • Joaillerie et bijouterie
CONT

Des gemmes de laboratoire. [...] Un concurrent du diamant pour la joaillerie est la moissanite (SiC). Deux autres substances artificielles sont utilisées pour simuler le diamant : la zircone cubique (souvent confondue avec le zirconium et le zircon, qui ne simulent pas le diamant) et le strass [...]

Spanish

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Record 2 - external organization data 2005-08-19

English

Subject field(s)
  • Properties of Fuels
  • Atomic Physics
  • Nuclear Fission Reactors
  • Compartment - Canadian Nuclear Safety Commission
CONT

[This figure] shows the design chosen for a CANDU fuel bundle. This bundle, used in all routine fuelling of CANDU reactors, is called CANLUB fuel.... The bundle... is mostly uranium dioxide(UO2), sheathed and held together by zircaloy. Zircaloy 4, the specific alloy used for this purpose, is 98% zirconium and 1. 7% tin. The UO2 is in the form of high-density pellets. Each fuel element is a thin zircaloy tube, the fuel sheath, filled with fuel pellets. A thin lubricating layer of graphite between the pellet and the sheath is what gives the fuel the proprietary name CANLUB.

French

Domaine(s)
  • Propriétés des combustibles
  • Physique atomique
  • Réacteurs nucléaires de fission
  • Tiroir - Commission canadienne de sûreté nucléaire
CONT

On peut voir [...] la grappe de combustible conçue pour l'alimentation ordinaire des réacteurs CANDU : le combustible CANLUB. [...] La grappe [...] est principalement composée de dioxyde d'uranium (UO2) confiné dans une gaine de zircaloy. Le zircaloy 4, l'alliage utilisé dans le combustible CANLUB, est composé de 98 % de zirconium et de 1,7 % d'étain. Le UO2 se présente sous la forme de pastilles très denses. Chaque crayon de combustible est formé d'un tube mince de zircaloy - la gaine de combustible - rempli de pastilles de combustible. Le nom de marque du combustible, CANLUB, provient de la mince couche lubrifiante de graphite entre la pastille et la gaine.

Spanish

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