Industrial-grade magnesium oxide, with its unique chemical and physical properties, plays multiple roles in the ceramic industry as a "performance modifier," "structural enhancer," and "functional agent." It is a crucial raw material for improving the quality of ceramic products and optimizing production processes. Different types of ceramics have varying requirements for the purity, particle size, and activity of magnesium oxide. In practical applications, it is necessary to make targeted selections based on specific formulations and processes.
1.Regulating ceramic body properties
Improves density and strength by promoting sintering, reducing porosity, and refining grains (e.g., enhancing hardness in structural ceramics like alumina ceramics).
Lowers firing temperature as a sintering aid, shortening production cycles.
Controls shrinkage to reduce cracking and deformation, boosting qualification rates.
2.Optimizing ceramic glaze performance
Enhances glaze gloss and flatness by improving fluidity, reducing defects like pinholes (common in daily-use ceramics such as tableware).
Strengthens chemical stability (acid/alkali resistance), critical for sanitary ceramics (toilets, bathtubs) exposed to water and detergents.
Adjusts thermal expansion coefficient to match the body, preventing glaze cracking.
3.Key for special ceramics
In electronic ceramics (piezoelectric, ferroelectric), modifies dielectric and piezoelectric properties for components like sensors.
Core material for refractory ceramics (magnesia bricks, crucibles) due to ultra-high melting point (2852°C), withstanding extreme heat in metallurgy/glass industries.
Suitable for bioceramics (bone repair materials) when meeting biocompatibility standards, aiding bone metabolism.
4.Auxiliary roles
Stabilizes ceramic pigments during high-temperature firing, ensuring color consistency.
Adjusts thermal conductivity in heat-dissipating ceramics (e.g., electronic packaging ceramics).