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Enhancing thermal and dielectric properties of MgO–Al2O3–SiO2–B2O3 glass-ceramics through CuO doping.
- Source :
-
Ceramics International . Oct2023, Vol. 49 Issue 19, p32078-32085. 8p. - Publication Year :
- 2023
-
Abstract
- In this work, (20- x)MgO–20Al 2 O 3 –56SiO 2 –4B 2 O 3 - x CuO (x = 0, 0.25, 0.5, 0.75, 1, 1.25 mol%) glass-ceramics were synthesized by solid-state reaction method. The crystallization, microstructure, thermal and dielectric properties of (20- x)MgO–20Al 2 O 3 –56SiO 2 –4B 2 O 3 - x CuO glass-ceramics was discussed in detail. It was demonstrated that the CuO lowers the crystallization temperature of α-cordierite and promotes the crystallization process of MgO–Al 2 O 3 –SiO–B 2 O 3 glass-ceramics. Thus, the crystallization showed a substantial influence on the dielectric properties, as evidenced by an elevation in dielectric constant and a decrease in dielectric loss. Specifically, with the addition of 0.5 mol% CuO, the MgO–Al 2 O 3 –SiO–B 2 O 3 glass-ceramics sintered at 1050 °C shows excellent properties of: ε r = 5.04, tan δ = 2.2 × 10-4, κ = 3.4 W/mK and α = 1.75 × 10-6/°C. These works provide valuable insights into the design and development of (20- x)MgO–20Al 2 O 3 –56SiO 2 –4B 2 O 3 - x CuO glass-ceramics with tailored properties for structure/function integration in the electronics industry. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 02728842
- Volume :
- 49
- Issue :
- 19
- Database :
- Academic Search Index
- Journal :
- Ceramics International
- Publication Type :
- Academic Journal
- Accession number :
- 169876050
- Full Text :
- https://doi.org/10.1016/j.ceramint.2023.07.175