In-situ Fabrication of Transparent Magnesium Aluminate Spinel by Spark Plasma Sintering

نویسندگان
Irankhah, Reza ID 1
Zakeri, Mohammad ID 2
Rahimipoor, Mohammad Reza ID 3
Razavi, Mansour ID 4

1 Ceramic, MERC

2 Research Department of Ceramic, Materials and Energy Research Center (MERC)

3 Ceramic Division, MERC

4 Ceramic Division, MERC

doi
10.30501/acp.2017.70044
چکیده

Transparent polycrystalline spinel ceramic was fabricated without any sintering aids by spark plasma sintering method of a mixture of Al2O3 and MgO powders for only 10min soak at 1250°C. Densification, microstructure and optical transparency of spinel were examined. The spinel exhibits an in-line transmission of 55% for a visible-wavelength of 470nm and high hardness value of 2040 HV.

کلیدواژه‌ها
MgAl2O4 Spinel, Spark Plasma Sintering, Transparent Ceramic