fig3

Dependence of microwave dielectric properties on ceramic connectivity in ultralow-<i>ε</i><sub>r</sub> Al<sub>2</sub>O<sub>3</sub> porous ceramics

Figure 3. SEM images of fractured surfaces of Al2O3-B ceramics with relative densities of (A) 78.76%, (B) 65.29%, and (C) 48.31%. The insets show the fractured surfaces with higher magnification.

Microstructures
ISSN 2770-2995 (Online)

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