Aluminium titanate - tialite belongs to the compounds with pseudobrookite structure. The polycrystals made of tialite show valuable useful thermal properties: low thermal expansion, very low thermal conductivity and high resistance to thermal shock. These properties result from the cracks present in the microstructure, resulting from significant differences in the lattice coefficients of aluminium titanate. The basic disadvantage of tialite consist in a thermal decomposition occurring at the temperatures of about 750 - 1280 °C. This decomposition can be limited by structural and microstructural stabilization. The addition of cations, e.g. magnesium or iron, leads to the formation of stable solid solutions, while the addition of SiO₂ or ZrO₂ leads to the formation of secondary phases - diffusion barriers occurring at intergranular boundaries. Most often these additives are introduced simultaneously and at the reaction sintering stage. Stable solid solutions are usually produced by a classical solid phase reaction between the initial oxides: Al₂O₃, TiO₂ and MgO. In this work, an innovative synthesis was applied to produce solid solutions, involving a heterogeneous isostructural nucleation with magnesium titanate. The polycrystals obtained in this way, at a much lower temperature, with a high content of solid solutions (95 - 96%), high density, homogeneous microstructure with necessary microcracks were obtained. As a result, the obtained polycrystals exhibit the typical pseudobrookite structure behaviour as a function of temperature.

钛酸铝-铝假板钛矿属于具有假板钛矿结构的化合物。由铝假板钛矿制成的多晶体显示出有价值的有用的热性能：低的热膨胀，非常低的导热率和高的抗热冲击性。这些性能是由于钛酸铝的晶格系数显着不同而导致的，出现在微观结构中的裂纹产生了。铝假板钛矿的基本缺点在于在约750-1280℃的温度下发生热分解。这种分解可能受到结构和微观结构稳定性的限制。阳离子（例如镁或铁）的添加导致形成稳定的固溶体，而SiO ₂或ZrO _2的添加导致形成第二相-在晶界处出现扩散障碍。通常，这些添加剂是在反应烧结阶段同时引入的。稳定的固溶体通常通过初始氧化物：Al ₂ O ₃，TiO ₂之间的经典固相反应产生和氧化镁。在这项工作中，采用了一种创新的合成方法来生产固溶体，其中涉及到钛酸镁的异质同构成核。以这种方式获得的多晶，在低得多的温度下，具有高固溶体含量（95-96％），高密度，均质的微观结构和必要的微裂纹。结果，获得的多晶表现出典型的假板钛矿结构行为随温度的变化。