What is it about?
New ceramic-glass mixes using boromullite and borosilicate glass was prepared. These materials stay stable, don't crystallize, and have low heat expansion and low dielectric constant. They also have good strength and density. This makes them useful for electronic devices.
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Why is it important?
This work is novel for successfully synthesizing boromullite (Al9BSi2O19) and using it to stabilize amorphous silica in glass composites. Even at 50% glass, no crystallization occurred. This phase control enabled low thermal expansion and dielectric constant, making the composites promising for electronic applications.
Perspectives
Boromullite was used to keep silica glass amorphous even at 50% loading a clever, chemically impressive strategy. The narrow property ranges suggest good reproducibility. However, long-term thermal stability and real device testing are still needed before claiming readiness for electronic applications.
Gehan El-Bassyouni
National Research Centre (NRC), Dokki, Cairo, 12622, Egypt
Read the Original
This page is a summary of: Boromullite/glass composites with improved thermal and electrical properties via maintaining the amorphous state of silica glass, Ceramics International, August 2025, Elsevier,
DOI: 10.1016/j.ceramint.2025.04.179.
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