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This report provides detailed information on all the major industrial applications of zircon and zirconia, the processes involved, the management of naturally occurring radioactive material …
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Technologically Enhanced Natural Radioactive Material (TENORM) contamination is a serious health problem. In applying safe zirconium oxide (ZrO2) in the industrial sector, it is necessary to have environmentally friendly ZrO2, namely very low radioactivity (< 1 Bq/g) and TENORM free. This study aims to obtain a ZrO2 with very low radioactivity and TENORM-free. …
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These works highlighted the relatively high concentrations of natural radionuclides in zircon ores. Zirconium silicate (ZrSiO4) is the most important compounds obtained from zircon sand; …
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radiation protection and norm residue management in the zircon and zirconia industries international atomic energy agency vienna, 2007 safety reports series no. 51
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Zircon, a silicate of zirconium (ZrSiO 4), is a source of various zirconium compounds and belongs neo silicate family. It is an essential component of our modern world ... level of radioactivity in different heavy minerals. Zircon is the main starting material for production of zirconia (ZrO 2) and is found to be a potential bio-inert
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Zirconium Silicate contains small quantities of radioactive isotopes of Uranium and Thorium. The average concentrations in Zirconium Silicate are 300 ppm of Uranium and 180 ppm of Thorium. The radioactivity of Zirconium Silicate is due to it's natural radionuclides which are not processed, and which have not been processed, in view of their
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Zircon sands have natural radioactivity and can be found as raw materials and as a by-product of mining and processing of heavy minerals sand. This sand is used in ceramics …
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Zircon is a naturally-occurring radioactive material [NORM] and as such is subject to a variety of regulations around the world. The regulatory processes and their implementation are …
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Nevertheless, consumers can rest assured that the radiation dose is negligible—the radioactive material is bound up in the zirconium silicate and would not be assimilated even if swallowed. Check·Up Gum helped fight plaque. As the gum was chewed, tiny granules of zirconium silicate (the third listed ingredient) scraped the teeth clean.
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radioactivity in zirconium silicate material in Bangladesh has not been published before. This study was concerned with the natural radioactivity contained in ceramic materials (zirconium silicate) bags collected from different containers *Corresponding author: mahfuzsiraz1985@yahoo at Chattogram mega port in Bangladesh. Radium equivalent
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zirconium was measured using the method of activation detectors. It is suggested that the activation of zirconium atoms and the isomeric transitions of zirconium isotopes are the main …
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such as zirconium silicate (ZrSiO 4) and zirconium dioxide (ZrO 2) leads to the incorporation of some radionuclides ... Key words: radioactivity, XrF, Zirconium-dioxide Accepted: May 2, 2012 DOI: 10.5301/JABFM.2012.9341. 36 2012 Societ Italiana Biomateriali - eISSN 2280-8000
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Zirconium silicate is a promising high-k dielectric material with excellent interface quality and radiation response. Therefore, the variation of dielectric properties due to radiation …
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Addition of zirconia (ZrO2) to nuclear waste glasses, even in small amount, significantly affects physical properties such as chemical durability, density, viscosity, and glass transition temperature.
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In this workplace, during the filling of glaze containing zirconium silicate, it is identified the activity with increased likelihood for the worker inhaling radioactive dust (internal dose), released by raw materials in powder form.
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Zircon, a silicate of zirconium (ZrSiO 4), is a source of various zirconium compounds and belongs neo silicate family.It is an essential component of our modern world due to its use in countless everyday products. Zircon, like other natural minerals, is also mined from earth's crust and is available in a minor concentration in heavy mineral sands mostly in beach …
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Zircon, silicate mineral, zirconium silicate, ZrSiO4, the principal source of zirconium. Zircon is widespread as an accessory mineral in felsic igneous rocks. It also occurs in metamorphic rocks and, fairly often, in detrital deposits. It occurs in beach sands in many parts of the world,
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One of the crucial factors in this study is correlation of radioactivity with structural properties of Zircon. Samples collected from proposed uranium mines Z1, Z2 exhibited high …
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New reference materials (RMs), zirconium silicate, bauxite and phosphogypsum, were produced and characterized according to an ISO guide. The homogeneity of the three RMs was evaluated using X-ray fluorescence (XRF), and characterizations of the three candidate materials were performed through a collaborative study with nine expert radioanalytical …
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occurring radioactive material (NORM) in industrial activities involving the exploitation of minerals. This guidance applies irrespective of whether the minerals are exploited for their radioactivity …
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As a general research objective, the external dose of ionizing radiation in different types of activity in a ceramic industry company is measured and this dose is, then, related with the use and/or …
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Zirconium Silicate. Zircon, or zirconium silicate, another mineral subject to metamictization, has an additional connection to radioactivity and is employed in radiometric dating, which uses known rates of atomic decay to determine the age of ancient rocks. Because of similar atomic radii, uranium substitutes readily for zirconium in zircon.
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