Influence of Additive’s Concentration on the Temperature Conditions for the Formation of the Solid Solutions of the System MgAl₂O₄-Ga₂O₃

Abstract

The production of a precursor of magnesium aluminate spinel (AMS) by thermic synthesis to obtain a material with high-performance properties is reviewed in the work. The temperature synthesis of AMS is determined, the introduction of the additive is described in the range of concentrations of 3, 5, and 7 mol.%. The current processes during the firing of products have been investigated with a view to the further selection of the firing mode of the ceramic samples, which can be obtained.

Effect of a Sintering Additive’s Concentration Forming a Solid Solution with Aluminum Spinel, on Phase Formation

“…2), it was determined that the heat treatment temperature for obtaining a single phase of magnesium aluminate spinel, which confirms the X-ray photograph (Fig. 3) was 1200 ° C. Described in more detail in work [12]. In the powder of magnesium aluminate spinel, aqueous salt of gallium nitrate was injected, which turns into oxide during heat treatment.…”