Adherence of porcelain veneered on titanium with an intermediate plasma-sprayed zirconia layer

Tsung Nan Lo, Edward Chang, Truan Sheng Lui

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7 Citations (Scopus)


Porcelain veneered on pure titanium with an intermediate plasma-sprayed ZrO2 bond coat layer was investigated in this study. The pure porcelain coating veneered on Ti was used as a control. The specimens were subjected to four-point bending test to measure the bonding strength. The fractograph, microstructure, surface roughness, and phase of plasma-sprayed ZrO2 bond coat were examined. The phase constituents at the location of adhesive failure of the fractured specimens were investigated by thin-film X-ray diffractometry. Experimental results reveal that the bonding strength of the coating with the intermediate layer was increased by 55.7% that was accompanied by a significant decrease of the area of adhesive failure in the fracture. The ZrO2 provided a higher surface roughness to enhance the mechanical bond at the interface of porcelain/ZrO2, meanwhile it acted as a sufficient oxygen diffusion barrier at 800°C to prevent the oxidation of Ti at the interface of ZrO2/Ti.

Original languageEnglish
Pages (from-to)947-952
Number of pages6
JournalMaterials Transactions
Issue number3
Publication statusPublished - 2004 Jul 1

All Science Journal Classification (ASJC) codes

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


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