Reaction diffusion in the Y2O3-Fe2O3 system

Mechanochemically assisted synthesis of yttrium–lanthanum orthoferrite: Structural and magnetic characterization

“…On the other hand, the mechanosynthesized Y 0.5 La 0.5 FeO 3 phase presents a distorted structure with a large number of defects which contributes to the disordered spin arrangement. This effect has been recently reported for NiFe 2 O 4 and MgFe 2 O 4 spinel ferrites [20,21]. In this way, the relatively high magnetization measured for this orthoferrite can be attributed to a combination of both mechanochemical and doping effects.…”

Preparation of ReFeO3 nanocrystalline powders by auto‐combustion of citric acid gel

“…However, this process suffers from problems such as excessive crystal growth, irregular atomic stoichiometric ratio, and formation of undesirable phases. [5] Recently, gel-combustion method has been developed and widely used to prepare phasepure nanopowders. [6,7] The method exhibits distinctive advantages of cheap precursors, a simple experimental process, and a resulting ultrafine, homogenous powder.…”

Microstructural development of interface layers between co-sintered alumina and spinel compacts

“…[1][2][3] Other relevant studies involved magnesia and spinel interfaces, 15 7 But no study was found in the literature regarding the reaction at the interface between polycrystalline alumina and polycrystalline spinel. Hence this study fills this gap in the literature.…”

“…For example, solid state reactions and solid-gas reactions between Y 2 O 3 and Fe 2 O 3 systems were studied by Buscaglia et al who used different types of diffusion couples. 7 They observed growth of different dense ternary phases at the interfaces. Columnar type elongated grains gained strong adherence between the end-members.…”