What is the chemical formula of alumina?

The chemical formula of aluminum oxide is: In the application of Al ₂ O Å, aluminum oxide fibers can be used as insulation materials in the aerospace and aviation industries; It can also be used as a reinforcement for making alloys of aluminum, magnesium, iron, nickel, copper, titanium, and various other metals; In addition, insulation lining materials prepared with alumina fibers can be applied to working temperatures above 1400 ℃, making them widely used in various furnaces and kilns in the steel industry, petrochemical industry, and ceramic preparation industry.

The rod-shaped alumina rod-shaped material, as a one-dimensional material, has many advantages that the vast majority of other morphologies do not possess:

1. For example, it has a high dielectric constant;

2. Good thermodynamic performance;

3. Stable chemical properties and excellent mechanical properties have made rod-shaped alumina a hot topic of attention.

In terms of preparation, the chemical formula of aluminum oxide is: aluminum nitrate is used as the aluminum source, PEG is used as the template, and urea is used as the precipitator. First, ammonium aluminum hydroxide carbonate is generated through the interaction between reactants. Through hydrothermal reaction, ammonium aluminum hydroxide carbonate is linked to the long chain of PEG to generate rod like aluminum oxide precursor. After calcination, rod like aluminum oxide nano powder is obtained. The above image is an SEM image of the rod-shaped alumina powder they generated.

Using different raw materials to produce rod-shaped nano alumina with different aspect ratios. The chemical formula of alumina is: Al ₂ O Å. Among them, rod-shaped nano y-Al203 with a length of 700-800nm, a diameter of 50nm, and a aspect ratio of 14-16:1 were prepared by hydrothermal method using sodium silicate and aluminum chloride as raw materials; Using sodium phosphate and aluminum nitrate as raw materials

The chemical formula of alumina is: In the experiment of Al ₂ O Å raw material, rod-shaped nano y-Al2030 with a aspect ratio of 10-13:1 was prepared

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