Paper 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 x 4 mm with a base of 5 x 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 β-phases for TNZ, and peaks related to β 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 β 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.

  Info
Periodical
Materials Science Forum (Volumes 530-531)
Edited by
Lucio Salgado and Francisco Ambrozio Filho
Pages
605-611
DOI
10.4028/www.scientific.net/MSF.530-531.605
Citation
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, "Ceramic Bonding to Biocompatible Titanium Alloys Obtained by Powder Metallurgy", Materials Science Forum, Vols. 530-531, pp. 605-611, 2006
Online since
November 2006
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Rabindra Mahapatra, A.W. Davis
Abstract:In this paper we report the oxidation behavior of Rh-xTi (x = 15 & 20 atomic percent) alloys isothermally exposed in air between 1000 and...
721
Authors: Zhen Tao Yu, Lian Zhou, Lijuan Luo, Maohong Fan, Yanyan Fu
Abstract:The effects of alloying elements such as Mo, Sn, Zr, Nb, deforming-rate, solid solution and aging treatment on mechanical property and...
595
Authors: Jeong Min Kim, Bong Koo Park, Joong Hwan Jun, Ki Tae Kim, Woon Jae Jung
Abstract:Small amounts of minor alloying elements such as RE and Sr were added to Mg- 8wt%Al-5wt%Zn (AZ91D+4%Zn), and their effects on the...
374
Authors: Hui Jie Liu, Li Zhou, Yong Xian Huang, Qi Wei Liu
Abstract:As a new solid-state welding process, friction stir welding (FSW) has been successfully used for joining low melting point materials such as...
1185
Authors: Yong Hua Li, Xin Jun Liang, Tao Fan
Abstract:Biomedical titanium alloys can be used for replacement and repair surgeries of human hard tissues. In recent years, the new b type titanium...
2009