In ceramic industry, zircon sand is widely used in different applications because zirconia plays a role as common opacifying constituent. In particular, it is used as a basic component of glazes applied to ceramic tiles and sanitary ware as well as an opacifier in unglazed bulk porcelain stoneware. Natural zircon sands are the major source of zirconium minerals for industrial applications. In this paper, long, medium, and short range studies were conducted on zirconium minerals originated from Australia, South Africa, and United States of America using conventional and less conventional techniques (i.e., X-Ray Diffraction (XRD), Positron Annihilation Lifetime Spectroscopy (PALS), and Perturbed Angular Correlations (PAC)) in order to reveal the type and the extension of the regions that constitute the metamict state of zircon sands and the modifications therein produced as a consequence of the industrial milling process and the thermal treatment in the production line. Additionally, HPGe gamma-ray spectroscopy confirms the occurrence of significant levels of natural radioactivity responsible for metamictization in the investigated zircon samples. Results from XRD, PALS, and PAC analysis confirm that the metamict state of zircon is a dispersion of submicron disordered domains in a crystalline matrix of zircon.

Structural Characterization of natural and processed zircons with X-rays and nuclear techniques / Damonte, L.; Rivas, P.; Pasquevich, A.; Andreola, Nora Maria; Bondioli, F.; Ferrari, Anna Maria; Tositti, L.; Cinelli, G.. - In: ADVANCES IN CONDENSED MATTER PHYSICS. - ISSN 1687-8108. - Volume 2017:(2017), pp. 1-9. [10.1155/2017/9707604]

Structural Characterization of natural and processed zircons with X-rays and nuclear techniques

ANDREOLA, Nora Maria;FERRARI, Anna Maria;
2017

Abstract

In ceramic industry, zircon sand is widely used in different applications because zirconia plays a role as common opacifying constituent. In particular, it is used as a basic component of glazes applied to ceramic tiles and sanitary ware as well as an opacifier in unglazed bulk porcelain stoneware. Natural zircon sands are the major source of zirconium minerals for industrial applications. In this paper, long, medium, and short range studies were conducted on zirconium minerals originated from Australia, South Africa, and United States of America using conventional and less conventional techniques (i.e., X-Ray Diffraction (XRD), Positron Annihilation Lifetime Spectroscopy (PALS), and Perturbed Angular Correlations (PAC)) in order to reveal the type and the extension of the regions that constitute the metamict state of zircon sands and the modifications therein produced as a consequence of the industrial milling process and the thermal treatment in the production line. Additionally, HPGe gamma-ray spectroscopy confirms the occurrence of significant levels of natural radioactivity responsible for metamictization in the investigated zircon samples. Results from XRD, PALS, and PAC analysis confirm that the metamict state of zircon is a dispersion of submicron disordered domains in a crystalline matrix of zircon.
2017
Volume 2017
1
9
Structural Characterization of natural and processed zircons with X-rays and nuclear techniques / Damonte, L.; Rivas, P.; Pasquevich, A.; Andreola, Nora Maria; Bondioli, F.; Ferrari, Anna Maria; Tositti, L.; Cinelli, G.. - In: ADVANCES IN CONDENSED MATTER PHYSICS. - ISSN 1687-8108. - Volume 2017:(2017), pp. 1-9. [10.1155/2017/9707604]
Damonte, L.; Rivas, P.; Pasquevich, A.; Andreola, Nora Maria; Bondioli, F.; Ferrari, Anna Maria; Tositti, L.; Cinelli, G.
File in questo prodotto:
File Dimensione Formato  
AdvCondMatter2017.pdf

accesso aperto

Descrizione: Articolo principale
Tipologia: Versione dell'editore (versione pubblicata)
Dimensione 1.89 MB
Formato Adobe PDF
1.89 MB Adobe PDF Visualizza/Apri
Pubblicazioni consigliate

Caricamento pubblicazioni consigliate

Licenza Creative Commons
I metadati presenti in IRIS UNIMORE sono rilasciati con licenza Creative Commons CC0 1.0 Universal, mentre i file delle pubblicazioni sono rilasciati con licenza Attribuzione 4.0 Internazionale (CC BY 4.0), salvo diversa indicazione.
In caso di violazione di copyright, contattare Supporto Iris

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11380/1145257
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 4
  • ???jsp.display-item.citation.isi??? 1
social impact