@inproceedings{dd60b7cdc5164b948a5af5a7f58f7364,
title = "Ceramic bonding to biocompatible titanium alloys obtained by powder metallurgy",
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 {\ss}structure. 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.",
keywords = "Biocompatibility, Bond strength, Metal-ceramic bonding, Titanium alloys",
author = "Bottino, {M. C.} and Oyafuso, {D. K.} and Coelho, {P. G.} and Taddei, {E. B.} and Henriques, {V. A.R.} and Silva, {C. R.M.} and Bottino, {M. A.} and Bressiani, {A. H.A.} and Bressiani, {J. C.}",
year = "2006",
doi = "10.4028/0-87849-423-5.605",
language = "English (US)",
isbn = "0878494235",
series = "Materials Science Forum",
publisher = "Trans Tech Publications Ltd",
pages = "605--611",
booktitle = "Advanced Powder Technology V - Fifth International Latin American Conference on Powder Technology - PTECH2005",
note = "5th International Latin-American Conference on Powder Technology, PTECH2005 ; Conference date: 26-10-2005 Through 29-10-2005",
}