Processing of High‐Density Magnesia Spinel Electro‐Conducting Ceramic Composite and its Oxidation at 1400°C
Source abstract
Abstract
Dense conductive ceramic composites of MgAl 2 O 4 and MoSi 2 were processed using combustion synthesis under‐load methodology. The starting reactants were blends of MoO 3 , SiO 2 , MgO , and A l powders. The study revealed that to obtain dense composite with homogeneous microstructure, 30 wt. % of MoSi 2 , 18.5 μm A l average particle size, and 175 MPa load are required. The produced dense composite was found to have a low apparent porosity (<1.0 vol. %), moderate density 4.61 g/cm 3 , and low electrical resistivity 0.3 Ωcm. The dense composite exhibited excellent thermodynamic stability between its phases at 1400°C in open atmosphere.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Advanced ceramic materials synthesis · Microwave Dielectric Ceramics Synthesis · Advanced materials and composites
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Materials Science and Engineering Group Chemistry Department Faculty of Science Taif University PO Box: 888, Al‐Haweiah Taif Saudi Arabia
Advanced Materials Department Central metallurgical R&D Institute (CMRDI) PO Box: 87, Helwan Cairo Egypt
Chemistry Department Faculty of Science Suez Canal University Ismailia 41522 Egypt
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