Ceramic bonding to biocompatible titanium alloys obtained by powder metallurgy

M. C. Bottino, D. K. Oyafuso, P. G. Coelho, E. B. Taddei, V. A.R. Henriques, C. R.M. Silva, M. A. Bottino, A. H.A. Bressiani, J. C. Bressiani

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The shear bond strength between a ceramic material (Titankeramik , Vita Zahnfabrik, Germany) and two biocompatible titanium alloys was investigated. Ti-13%Nb-13%Zr (TNZ) and Ti-35%Nb-7%Zr-5%Ta (TNZT) alloys were obtained based on the blended elemental technique followed by a sequence of cold uniaxial and isostatic pressing and sintering. Characterization involved microstructural analysis (SEM) and crystalline phase identification (XRD). Subsequently, samples were machined to 4 × 4 mm with a base of 5 × 1 mm. The base metals were blasted with Al2O3 particles followed by the application of a coupling agent and opaque ceramic. After ceramic firing, the specimens were loaded in a universal testing machine (0,5mm/min). XRD revealed the presence of α and ß-phases for TNZ, and peaks related to ß phases and Nb and Ta for the TNZT alloy. SEM evaluation (TNZ) depicted remaining pores and biphasic microstructure formation. SEM micrographs of the TNZT alloy revealed good densification and a homogeneous ßstructure. Shear bond strength data (MPa) were statistically analyzed (one-way ANOVA and Tukey test, α =.05) revealing that TNZT (37.6 ± 2.91) presented significant higher values (p=0.0002) compared to TNZ (26.03 ± 2.92). In conclusion, it seems that Ti alloy composition plays a significant role on ceramic bonding.

Original languageEnglish (US)
Title of host publicationAdvanced Powder Technology V - Fifth International Latin American Conference on Powder Technology - PTECH2005
Pages605-611
Number of pages7
StatePublished - Dec 1 2006
Event5th International Latin-American Conference on Powder Technology, PTECH2005 - Salvador, Brazil
Duration: Oct 26 2005Oct 29 2005

Publication series

NameMaterials Science Forum
Volume530-531
ISSN (Print)0255-5476

Other

Other5th International Latin-American Conference on Powder Technology, PTECH2005
CountryBrazil
CitySalvador
Period10/26/0510/29/05

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Keywords

  • Biocompatibility
  • Bond strength
  • Metal-ceramic bonding
  • Titanium alloys

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Bottino, M. C., Oyafuso, D. K., Coelho, P. G., Taddei, E. B., Henriques, V. A. R., Silva, C. R. M., Bottino, M. A., Bressiani, A. H. A., & Bressiani, J. C. (2006). Ceramic bonding to biocompatible titanium alloys obtained by powder metallurgy. In Advanced Powder Technology V - Fifth International Latin American Conference on Powder Technology - PTECH2005 (pp. 605-611). (Materials Science Forum; Vol. 530-531).