Densification behavior and properties of iron oxide doped Y-TZP ceramics
The effect of small addition of Fe2O3 (up to 1 wt%) on the densification behaviour and mechanical properties of commercially available 3 mol% Yttria Tetragonal Zirconia Polycrystals (Y-TZP) sintered from 1250°C to 1500°C was investigated. Tests were carried out in order to determine the bulk dens...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
School of Engineering,Taylor’s University
2016
|
| Subjects: | |
| Online Access: | http://eprints.intimal.edu.my/741/1/Densification%20behavior%20and%20properties%20of%20iron%20oxide%20doped%20Y-TZP%20ceramics.pdf http://eprints.intimal.edu.my/741/ |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | The effect of small addition of Fe2O3 (up to 1 wt%) on the densification
behaviour and mechanical properties of commercially available 3 mol% Yttria
Tetragonal Zirconia Polycrystals (Y-TZP) sintered from 1250°C to 1500°C was
investigated. Tests were carried out in order to determine the bulk density,
Vickers hardness, Young’s Modulus and fracture toughness of the sintered
samples. Based on the work carried out, it is revealed that the amount of
dopants and sintering temperature influences the mechanical properties of YTZP.
The results showed that even sintering at low temperature at 1250°C,
relative bulk density ~98% of theoretical density could be achieved with the
addition of 0.3 wt% Fe2O3
. The additions of small amounts of Fe2O3
from 0.05
wt% to 1.0 wt% was found to be beneficial in enhancing the matrix stiffness
and hardness of the sintered bodies when compared to the undoped counterpart
sintered at same temperature. However, the fracture toughness was found to be
unaffected by the additions of small dopant amounts except for the case of 0.5
and 1 wt% Fe2O3 when sintered above 1400°C. |
|---|