Back to Search
Start Over
Evaluation of Biomedical Ti/ZrO2 Joint Brazed with Pure Au Filler: Microstructure and Mechanical Properties
- Source :
- Metals, Volume 10, Issue 4, Metals, Vol 10, Iss 526, p 526 (2020)
- Publication Year :
- 2020
- Publisher :
- Multidisciplinary Digital Publishing Institute, 2020.
-
Abstract
- Titanium and zirconia (ZrO2) ceramics are widely used in biomedical fields. This study aims to achieve reliable brazed joints of titanium/ZrO2 using biocompatible Au filler for implantable medical products. The effects of brazing temperature and holding time on the interfacial microstructures and mechanical properties of titanium/Au/ZrO2 joints were fully investigated by scanning electron microscopy (SEM), energy-dispersive spectrometry (EDS) and X-ray diffraction (XRD). The results indicated that the typical interfacial microstructure of the titanium/Au/ZrO2 joint was titanium/Ti3Au layer/TiAu layer/TiAu2 layer/TiAu4 layer/TiO layer/ZrO2 ceramic. With an increasing brazing temperature or holding time, the thickness of the Ti3Au + TiAu + TiAu2 layer increased gradually. The growth of the TiO layer was observed, which promoted metallurgical bonding between the filler metal and ZrO2 ceramic. The optimal shear strength of ~35.0 MPa was obtained at 1150 &deg<br />C for 10 min. SEM characterization revealed that cracks initiated and propagated along the interface of TiAu2 and TiAu4 reaction layers.
- Subjects :
- lcsh:TN1-997
Materials science
Scanning electron microscope
chemistry.chemical_element
interfacial microstructure
02 engineering and technology
mechanical properties
01 natural sciences
0103 physical sciences
Brazing
General Materials Science
Cubic zirconia
Ceramic
Composite material
brazing
lcsh:Mining engineering. Metallurgy
010302 applied physics
Filler metal
Metals and Alloys
021001 nanoscience & nanotechnology
Microstructure
chemistry
visual_art
visual_art.visual_art_medium
biomedical titanium
0210 nano-technology
Layer (electronics)
Titanium
zirconia bioceramic
Subjects
Details
- Language :
- English
- ISSN :
- 20754701
- Database :
- OpenAIRE
- Journal :
- Metals
- Accession number :
- edsair.doi.dedup.....4f26d7ecea6048c6c520220dd73f4f94
- Full Text :
- https://doi.org/10.3390/met10040526