journal article
Feb 05, 2021
Structure‐property relations for a phase‐pure, nanograined tetragonal zirconia ceramic stabilized with minimum CaO doping
Abstract
Abstract
Dense (~97%) CaO‐stabilized ZrO
2
ceramic was stabilized with minimum (3 mol%) doping (reported to date) and processed via conventional sintering at a low temperature (~1200°C); compositional analysis via X‐ray florescence confirmed the CaO doping accuracy. Phase‐pure tetragonal structure (characterized via both X‐ray diffraction and Raman spectroscopy) along with uniform nanograins (90 nm) of the ceramic ensured the evolution of no monoclinic phase even after vigorous low‐temperature degradation experiments (both thermal and hydrothermal aging for 80‐100 h). The sintered ceramic recorded a high hardness (~15 GPa); the indentation toughness value was also comparable to a 3 mol% yttria‐stabilized zirconia system. The remarkable structure–property correlations in the 3 mol% CaO‐stabilized ZrO
2
ceramic suggests that the same may be worth examining for suitable future applications (e.g., in dental ceramics).
Dense (~97%) CaO‐stabilized ZrO
2
ceramic was stabilized with minimum (3 mol%) doping (reported to date) and processed via conventional sintering at a low temperature (~1200°C); compositional analysis via X‐ray florescence confirmed the CaO doping accuracy. Phase‐pure tetragonal structure (characterized via both X‐ray diffraction and Raman spectroscopy) along with uniform nanograins (90 nm) of the ceramic ensured the evolution of no monoclinic phase even after vigorous low‐temperature degradation experiments (both thermal and hydrothermal aging for 80‐100 h). The sintered ceramic recorded a high hardness (~15 GPa); the indentation toughness value was also comparable to a 3 mol% yttria‐stabilized zirconia system. The remarkable structure–property correlations in the 3 mol% CaO‐stabilized ZrO
2
ceramic suggests that the same may be worth examining for suitable future applications (e.g., in dental ceramics).
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References
65
[8]
[36]
ArunA KumarL ChowdhuryA.Patent No. 201931036371: a method of preparation of monoclinic phase free doped zirconia powders with low temperature sinterability. Patna India 2019.
[39]
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Details
- Published
- Feb 05, 2021
- Vol/Issue
- 104(7)
- Pages
- 3497-3507
- License
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Authors
Cite This Article
Aditya Arun, Lakshaman Kumar, Anirban Chowdhury (2021). Structure‐property relations for a phase‐pure, nanograined tetragonal zirconia ceramic stabilized with minimum CaO doping. Journal of the American Ceramic Society, 104(7), 3497-3507. https://doi.org/10.1111/jace.17683
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