Publisher： Trans Tech Publications
E-ISSN： 1662-9795|2016|697|345-349
ISSN： 1013-9826
Source： Key Engineering Materials, Vol.2016, Iss.697, 2016-08, pp. : 345-349
Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.
Abstract
Magnesia-spinel composites were prepared by sintering at 1800°C in N2 with fused magnesia, sintered magnesia, MgO-Al2O3 spinel as raw materials and Al powder as additive. The compositions and microstructure of sintered products were investigated by XRD and SEM. The results show that a little AlN and MgAlON has been detected by XRD and SEM, indicating that AlN and MgAlON can be synthesized at 1800°C in N2. Some Al from matrix reacts with minor O2 existing in N2 and forms gaseous Al2O at the first stage of reaction, which causes the increasing porosity of samples with more Al powder added and the limited amount of AlN and MgAlON. AlON can not be detected in the samples.
Related content
Access to resources
Recommend
Effects of Al Content on the Phase Constitution of Aluminum-Periclase Composites at 1600°C in N2
Key Engineering Materials, Vol. 2016, Iss. 697, 2016-08 ,pp. :
Effect of Al Powder Content on Performance of MgO-Al2O3 Composite at 1700°C under N2 Atmosphere
Key Engineering Materials, Vol. 2016, Iss. 697, 2016-08 ,pp. :
Effect of Addition on Oxidation Resistance of Ti3SiC2 Matrix Composites
Key Engineering Materials, Vol. 2017, Iss. 727, 2017-03 ,pp. :