Alumina boat crucible in materials science
The alumina boat crucible has excellent thermal stability. Its long-term operating temperature can reach up to 1600°C, and the short-term limit temperature can even withstand 1800°C. This characteristic makes it suitable for high-temperature smelting, sintering and other processes. It performs stably especially in an oxidizing or reducing atmosphere, and will not react with air, water vapor, hydrogen or carbon monoxide.
Due to the inherent inertness of aluminum oxide, this crucible has strong corrosion resistance to acids and weakly alkaline substances, and is suitable for the treatment of samples using weakly alkaline substances such as anhydrous sodium carbonate as a flux. However, it should be noted that it is not suitable for use with strongly alkaline substances (such as sodium hydroxide and sodium peroxide) or acidic fluxes (such as potassium pyrosulfate) to avoid chemical reactions that could lead to damage to the crucible.
In the fields of materials science, chemical analysis, etc., alumina boat crucibles are commonly used for high-temperature heating and melting of samples (such as metals, ceramics, glass, etc.), as well as various types of composition analysis. Their high-purity characteristics prevent impurity contamination and ensure the accuracy of experimental data.