Structural features of Al₂O₃-YAG-ZrO₂:Y eutectic plates grown by the EFG process have been studied. X-ray tomography shows that all three phases are continuous along the whole sample, suggesting a fully coupled ternary eutectic growth. However the growth of alumina and YAG is well described by a classical binary coupled growth, in spite of the facetted structure of their growth interface. Colonies are observed at high growth rate and have been related to the chemical rejection of zirconium ions at the solid-liquid interface, possibly due to a slight off-stoechiometry of the raw material.

中文翻译：

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Al ₂ O ₃ -Y ₃ Al ₅ O ₁₂ -ZrO ₂：Y凝固共晶的生长和结构。

研究了通过EFG工艺生长的Al ₂ O ₃ -YAG-ZrO ₂：Y共晶板的结构特征。X射线断层扫描显示，整个样品的所有三个相都是连续的，表明三元共晶生长是完全耦合的。然而，尽管氧化铝和YAG的生长界面具有多面结构，但其生长已通过经典的二元耦合生长很好地描述了。菌落以高生长速率观察到，并与固液界面处的锆离子的化学排斥有关，这可能是由于原料的化学计量偏低所致。