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


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
PublisherTrans Tech Publications Ltd
Number of pages7
ISBN (Print)0878494235, 9780878494231
StatePublished - 2006
Event5th International Latin-American Conference on Powder Technology, PTECH2005 - Salvador, Brazil
Duration: Oct 26 2005Oct 29 2005

Publication series

NameMaterials Science Forum
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752


Other5th International Latin-American Conference on Powder Technology, PTECH2005


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

ASJC Scopus subject areas

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


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