Composite coatings on ceramic tiles have been produced by plasma-spraying waste glass powders together with alumina as reinforcing phase. Obtaining a tough coating, in which a high amount of waste glass can be recycled, is the aim of the study. Glass powders with different particle size distributions were tested; coatings with increasing glass volume fractions (0%, 20%, 40%, 60%, 80%, 100%) were sprayed. Furthermore, two different kinds of alumina feedstocks were employed, namely, a commercial plasma-spray powder and a more economical laboratory manufactured spray-dried powder. Vickers microhardness, fracture toughness and abrasion resistance have been measured. The coatings were tested both in as-sprayed condition and after a thermal treatment. An abrasion resistance comparable to common industrial glazes has been obtained with as much as 60% of glass volume fraction, employing fine glass powders (< 45 mu m). No significant decrease in mechanical proper-ties has been noticed replacing the commercial alumina powder with the spray-dried one. (c) 2005 Elsevier B.V. All rights reserved.

Glass-alumina composite coatings by plasma spraying. Part I: Microstructural and mechanical characterization / Bolelli, Giovanni; Cannillo, Valeria; Lusvarghi, Luca; Manfredini, Tiziano. - In: SURFACE & COATINGS TECHNOLOGY. - ISSN 0257-8972. - STAMPA. - 201:(2006), pp. 458-473.

Glass-alumina composite coatings by plasma spraying. Part I: Microstructural and mechanical characterization

BOLELLI, Giovanni;CANNILLO, Valeria;LUSVARGHI, Luca;MANFREDINI, Tiziano
2006

Abstract

Composite coatings on ceramic tiles have been produced by plasma-spraying waste glass powders together with alumina as reinforcing phase. Obtaining a tough coating, in which a high amount of waste glass can be recycled, is the aim of the study. Glass powders with different particle size distributions were tested; coatings with increasing glass volume fractions (0%, 20%, 40%, 60%, 80%, 100%) were sprayed. Furthermore, two different kinds of alumina feedstocks were employed, namely, a commercial plasma-spray powder and a more economical laboratory manufactured spray-dried powder. Vickers microhardness, fracture toughness and abrasion resistance have been measured. The coatings were tested both in as-sprayed condition and after a thermal treatment. An abrasion resistance comparable to common industrial glazes has been obtained with as much as 60% of glass volume fraction, employing fine glass powders (< 45 mu m). No significant decrease in mechanical proper-ties has been noticed replacing the commercial alumina powder with the spray-dried one. (c) 2005 Elsevier B.V. All rights reserved.
201
458
473
Glass-alumina composite coatings by plasma spraying. Part I: Microstructural and mechanical characterization / Bolelli, Giovanni; Cannillo, Valeria; Lusvarghi, Luca; Manfredini, Tiziano. - In: SURFACE & COATINGS TECHNOLOGY. - ISSN 0257-8972. - STAMPA. - 201:(2006), pp. 458-473.
Bolelli, Giovanni; Cannillo, Valeria; Lusvarghi, Luca; Manfredini, Tiziano
File in questo prodotto:
Non ci sono file associati a questo prodotto.
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/11380/305898
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 32
  • ???jsp.display-item.citation.isi??? 29
social impact