Author/Authors :
Irankhah, R Materials and Energy Research Center - Department of Ceramic, Karaj, Iran , Zakeri, M Materials and Energy Research Center - Department of Ceramic, Karaj, Iran , Rahimipour, M.R Materials and Energy Research Center - Department of Ceramic, Karaj, Iran , Razavi, M Materials and Energy Research Center - Department of Ceramic, Karaj, Iran
Abstract :
In this research, transparent polycrystalline spinel ceramic was fabricated without any sintering aids
and by performing spark plasma sintering method on a mixture of Al2O3 and MgO powders for only 10
min soak at 1250°C. Densification, microstructure and optical transparency of spinel were examined.
The result indicate that spinel exhibits an in-line transmission of 55% for an IR-wavelength of 4.7μm
and high hardness value of 2040 HV.
