Adhesion Assessment of BNT Films on Titanium Substrates Using a Scratch Test

Fang Chao Xu; Kazuhiro Kusukawa

doi:10.4028/www.scientific.net/AMR.875-877.584

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 875-877Adhesion Assessment of BNT Films on Titanium...

Adhesion Assessment of BNT Films on Titanium Substrates Using a Scratch Test

Abstract:

Lead-free piezoelectric (Bi_1/2Na_1/2)TiO₃ (BNT) films were deposited on 0.2 mm thick pure titanium (Ti) substrates by a hydrothermal method. Scratch tests were performed to quantitatively assess the adhesion strength between BNT films and Ti substrates. Ti substrates were pretreated by chemical polish and mechanical polish respectively prior to BNT film deposition with a view of investigating the effects of substrate surface pretreatments on the adhesion of BNT film. In the scratch test, the behaviour of BNT film exfoliation was investigated by SEM observation. The scratch test results revealed that the chemical polish pretreatment effectively improved the adhesion of BNT films.

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Periodical:

Advanced Materials Research (Volumes 875-877)

Pages:

584-587

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.875-877.584

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Online since:

February 2014

Authors:

Fang Chao Xu, Kazuhiro Kusukawa

Keywords:

Adhesion, BNT Film, Hydrothermal Method, Scratch

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