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Journal of Materials Science

, Volume 44, Issue 2, pp 502–509 | Cite as

Surface modifications to improve Ti–porcelain bonding

  • Litong Guo
  • Xiaochen Liu
  • Zengying He
  • Hui Zhang
  • Jiqiang GaoEmail author
  • Jianfeng Yang
  • Tianwen Guo
Article

Abstract

Investigations of surface modifications on cast titanium surfaces and titanium-ceramic adhesion were performed. Cast pure titanium was subjected to surface modification by preoxidation and introduction of an intermediate layer of SnOx by sol–gel process. Surfaces only sandblasted with alumina were used as controls. Specimen surfaces were characterized by XRD and SEM/EDS. The adhesion between the titanium and porcelain was evaluated by three-point flexure bond test. Failure of the titanium–porcelain with preoxidation treatment predominantly occurred at the titanium-oxide interface. Preoxidation treatment did not affect the fracture mode of the titanium–ceramic system and did not increase the bonding strength of Ti–porcelain. However, a thin and coherent SnOx film with small spherical pores obtained at 300 °C served as an effective oxygen diffusion barrier and improved titanium–ceramic adhesion. The SnOx film changed the fracture mode of the titanium–ceramic system and improved the mechanical and chemical bonding between porcelain and titanium, resulting in the increased bonding strength of titanium–porcelain.

Keywords

Titanium SnO2 Bonding Strength Intermediate Layer Titanium Surface 

Notes

Acknowledgement

The authors gratefully acknowledge the Fourth Military Medical University for providing support for porcelain fusion.

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Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  • Litong Guo
    • 1
    • 2
  • Xiaochen Liu
    • 3
    • 4
  • Zengying He
    • 1
  • Hui Zhang
    • 3
  • Jiqiang Gao
    • 1
    Email author
  • Jianfeng Yang
    • 1
  • Tianwen Guo
    • 3
  1. 1.State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science & EngineeringXi’an Jiaotong UniversityXi’anPeople’s Republic of China
  2. 2.China University of Ming and TechnologyXuzhouPeople’s Republic of China
  3. 3.The Fourth Military Medical UniversityXi’anPeople’s Republic of China
  4. 4.Department of Prosthodentics, Affiliated Hospital of Stomatology, School of MedicineZhejiang UniversityHangzhouPeople’s Republic of China

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