Relationship Between Elastic, Chemical, and Thermal Properties of SiO2 Flint Aggregate
2024
Understanding the Properties of SiO2 Flint Aggregate
publication
Evidence: moderate
Author Information
Author(s): Khouchaf Lahcen, Oufakir Abdelhamid
Primary Institution: IMT Nord Europe, Institut Mines-Telecom, University Lille, Centre for Materials and Processes, Lille, France
Hypothesis
What is the relationship between the elastic, chemical, and thermal properties of SiO2 flint aggregate?
Conclusion
SiO2 with controlled properties can be used as a filler to enhance the performance of composites.
Supporting Evidence
- The elastic properties of silica depend on chemical and heat treatment.
- Crystallite size increases from 63 nm for natural SiO2 to 70 nm after thermal treatment.
- Microstrain for natural SiO2 is smaller than after chemical treatment.
- SiO2 characterized with controlled properties may improve composite performance.
Takeaway
This study looks at how different treatments change the properties of SiO2, which can help make stronger and more durable materials.
Methodology
Various techniques including VP-SEM, XRD, FTIR, TDA, TGA, and HR-TEM were used to analyze the SiO2 samples.
Digital Object Identifier (DOI)
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