Ferrites crystallize in a variety of different structure types, which, although their formulas may at first appear to be too complex to understand intuitively, are in fact built from the stacking of only a handful of simple building blocks. Ferrites without iron, in contrast to the well-known iron-based ferrites, remain understudied, although many family members with distinctive structural and physical properties are known. This review briefly introduces the solid-state chemistry of ferrite compounds, primarily describing their crystal structures, followed by a summary of the reported structure-property relations of the iron-free members of this large family of materials. We also consider beta aluminas to be members of the iron-free ferrite structure family and describe them here.

铁氧体以各种不同的结构类型结晶，虽然它们的公式起初看起来过于复杂而无法直观理解，但实际上是由少量简单的构建块堆叠而成。与众所周知的铁基铁氧体相比，不含铁的铁氧体仍未得到充分研究，尽管已知许多具有独特结构和物理特性的家族成员。这篇综述简要介绍了铁氧体化合物的固态化学，主要描述了它们的晶体结构，然后总结了这一大族材料中无铁成员的结构-性能关系。我们还将 β 氧化铝视为无铁铁氧体结构家族的成员，并在此处对其进行描述。