Journal of Ceramics / 2014 / Article / Tab 4

Research Article

Alumina-Based Ceramics for Armor Application: Mechanical Characterization and Ballistic Testing

Table 4

Apparent density, theoretical density, relative density, and porosity of the sintered compositions.

CompositionA92A96A99

Apparent density
( , g·cm−3)
3.65 ± 0.013.70 ± 0.013.85 ± 0.02
Theoretical density
( , g·cm−3)
3.70 ± 0.013.80 ± 0.013.96 ± 0.01
Relative density ( , %)98.797.697.1
Porosity (ε, %)1.32.42.9

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