Instrumented sharp indentation is often employed formicromechanical investigation of thermal-spray coatings.However, rather complex dependenciesof measured values on indentation load have been reported. To verify the possible influence of sub-surface cracking,Vickers and Berkovich indentations onplasma-spray TiO2 were sectioned by FIB. Remarkable sub-surface cracking was found for indentations performed on the coating cross-section, even forrather low loads (1 N).Much less sub-surface cracking occurs when indenting the top surface, indicatingmaterial anisotropy. This preliminary investigationhighlights the need for thorough studies of sub-surface cracking during instrumented sharp indentation.

A FIB study of sharp indentation testing on plasma-sprayed TiO2 / Bolelli, Giovanni; Cannillo, Valeria; Lusvarghi, Luca; F., PIGHETTI MANTINI; Gualtieri, Enrico; C., Menozzi. - In: MATERIALS LETTERS. - ISSN 0167-577X. - STAMPA. - 62:10-11(2008), pp. 1557-1560. [10.1016/j.matlet.2007.09.022]

A FIB study of sharp indentation testing on plasma-sprayed TiO2

BOLELLI, Giovanni;CANNILLO, Valeria;LUSVARGHI, Luca;GUALTIERI, Enrico;
2008-01-01

Abstract

Instrumented sharp indentation is often employed formicromechanical investigation of thermal-spray coatings.However, rather complex dependenciesof measured values on indentation load have been reported. To verify the possible influence of sub-surface cracking,Vickers and Berkovich indentations onplasma-spray TiO2 were sectioned by FIB. Remarkable sub-surface cracking was found for indentations performed on the coating cross-section, even forrather low loads (1 N).Much less sub-surface cracking occurs when indenting the top surface, indicatingmaterial anisotropy. This preliminary investigationhighlights the need for thorough studies of sub-surface cracking during instrumented sharp indentation.
62
10-11
1557
1560
A FIB study of sharp indentation testing on plasma-sprayed TiO2 / Bolelli, Giovanni; Cannillo, Valeria; Lusvarghi, Luca; F., PIGHETTI MANTINI; Gualtieri, Enrico; C., Menozzi. - In: MATERIALS LETTERS. - ISSN 0167-577X. - STAMPA. - 62:10-11(2008), pp. 1557-1560. [10.1016/j.matlet.2007.09.022]
Bolelli, Giovanni; Cannillo, Valeria; Lusvarghi, Luca; F., PIGHETTI MANTINI; Gualtieri, Enrico; C., Menozzi
File in questo prodotto:
Non ci sono file associati a questo prodotto.
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: https://hdl.handle.net/11380/583862
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 15
  • ???jsp.display-item.citation.isi??? 14
social impact