Impacts of substituting magnesium with zinc on crystallization behaviors in an aluminosilicate glass
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View abstract on PubMed
Summary
This summary is machine-generated.Substituting magnesium with zinc in aluminosilicate glasses alters crystallization, leading to transparent materials. This study explores how zinc content impacts glass transparency and crystal phase formation for performance optimization.
Area Of Science
- Materials Science
- Glass Science
- Crystallization
Background
- Aluminosilicate glasses are widely used in various applications.
- Controlling crystallization is key to tailoring glass properties.
- The effects of mixed cation substitution (Zn, Mg) on glass crystallization are not fully understood.
Purpose Of The Study
- To investigate the impact of substituting magnesium (Mg) with zinc (Zn) on the crystallization behavior of aluminosilicate glasses.
- To correlate changes in crystal phase composition and morphology with glass transparency.
- To provide insights for optimizing the performance of crystallized aluminosilicate glasses.
Main Methods
- Fabrication of zinc-magnesium mixed aluminosilicate glasses with varying molar compositions.
- Differential scanning calorimetry (DSC) to analyze thermal behaviors and crystallization peaks.
- X-ray diffraction (XRD) to identify crystalline phases.
- Optical microscopy to observe microstructural evolution and morphology.
Main Results
- Transparent surface crystallized glasses were successfully fabricated, with transparency increasing as magnesium was replaced by zinc.
- Calorimetric and XRD analyses revealed a shift in crystallization from a sole metastable Zn-β quartz solid solution to a coexistence of polycrystal phases (including μ-cordierite and α-cordierite) with increasing zinc content.
- Optical microscopy showed that the evolution of glass morphology is directly linked to the alteration of these crystal phases.
Conclusions
- The substitution of magnesium with zinc significantly influences the crystallization pathway and resulting microstructure of aluminosilicate glasses.
- Controlling the Zn/Mg ratio allows for tuning the transparency and phase composition of the crystallized glasses.
- These findings offer a pathway for designing advanced crystallized aluminosilicate materials with tailored optical and structural properties.
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