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Tuning the structural and mechanical properties in ZrO2-SiO2 binary system through Y3+ inclusions
S Vasanthavel1, K Meenakshi1, V Nivedha2
1Centre for Nanoscience and Technology, Pondicherry University, Puducherry 605 014, India.
Summary
Yttrium (Y3+) additions enhance the structural and mechanical properties of zirconia-silica (YSZ) systems. This study synthesized YSZ powders via sol-gel, confirming Y3+
Area of Science:
- Materials Science
- Ceramic Engineering
- Nanotechnology
Background:
- Zirconia-silica (ZS) binary systems are crucial in advanced ceramics.
- Understanding the impact of dopants on ZS properties is vital for material optimization.
- Yttrium oxide (Y2O3) is a common dopant for zirconia stabilization.
Purpose of the Study:
- To investigate the influence of yttrium (Y3+) inclusions on the structural and mechanical characteristics of ZrO2-SiO2 (YSZ) binary systems.
- To evaluate the role of Y3+ in enhancing the thermal stability and mechanical performance of YSZ.
- To compare the properties of YSZ with pure ZrO2-SiO2 (ZS) systems.
Main Methods:
- Sol-gel synthesis technique for YSZ powder preparation.
- Comprehensive characterization of structural and thermal properties.
- Instrumented indentation testing for mechanical property evaluation.
Main Results:
- Yttrium (Y3+) additions significantly influence the structural and thermal stability of the ZrO2-SiO2 system.
- Characterization confirmed the crucial role of Y3+ in stabilizing the YZS structure.
- Instrumented indentation revealed enhanced mechanical properties in YSZ compared to pure ZS.
Conclusions:
- Yttrium (Y3+) doping is an effective strategy to improve the structural integrity and mechanical strength of ZrO2-SiO2 ceramics.
- The YSZ system exhibits superior thermal stability and mechanical performance due to Y3+ incorporation.
- The findings provide valuable insights for designing advanced ceramic materials with tailored properties.
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