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What is magnesium Oxide?
Magnesium dioxide, is an inorganic compound with a chemical composition of MgO. The solid is white at room temperature. Magnesium oxide is found naturally in periclase. It is used as a raw material in magnesium smelting.
Magnesium dioxide has excellent fire resistance and insulation qualities. Magnesium oxide can be crystallized after burning at high temperatures above 1000degC. Burnt magnesia is formed when the temperature reaches 1500-2000degC. Magnesium-oxide ceramics are high-temperature resistant, have excellent conductivity and mechanical strength. They can be used to make microwave media, thick film integrated semiconductors, or glass-ceramics.
Concentrated application of magnesium oxide to ceramics
1. It is possible to manufacture a wide range of complex products using silicon nitride. These include cutting tools, bearings and nozzles. They can also be produced with high-temperature wear-resistant and corrosion-resistant products.
2. Preparation of magnesia core
It is important to note that the use temperature for the magnesia core cannot be lower than 1600°C. This means it will not react with cast metals under high-temperature circumstances. Castings with silicon-based cores have a smooth surface, which compensates for the many pores and holes that are present in the internal cavity. It is easy to strip, with simple equipment and a pollution-free, non-polluting stripping process. Thermal cracking is common; the core has a high degree of precision; it will not deform or break during the handling, installation of the furnace and modelling.
3. Prepare high-toughness materials by using a composite stabilizer of yttrium and magnesium oxides or rare-earth metal oxides. These stabilizers produce zirconia ceramics that have excellent mechanical properties, and are resistant to ageing at high temperatures. The ceramic material has many applications, including high-temperature engineered parts and advanced materials.
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