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 present in nature under the form of periclase. This raw material is used to smelt magnesium.
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 Ceramic Core must not be less than 1600°C. This core will not react with cast metal at high temperatures. 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; the casting will not deform or break during the installation, handling or modelling.
3. Prepare high-toughness materials by using a composite stabilizer of high purity magnesium oxide, yttrium dioxide or rare-earth metal oxides. These stabilizers produce zirconia ceramics that have excellent mechanical properties as well as high temperature ageing resistance. The ceramic material has many applications, including high-temperature engineered parts and advanced materials.
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