Preparation and characterization of hexaferrite

Synthesis and magnetic properties of La-substituted M-type Sr hexaferrites

“…Lotgering in his early paper [5] had estimated the amount of La ferrite in his sample to be 86% only. Recently, various synthesis techniques (co-precipitation, mechanical alloying, solgel) have been explored in order to optimize the preparation conditions for LaFe 12 O 19 [6,7,9]. However, although some progress was made, the synthesis of single-phase La-rich samples of the hexagonal ferrite solid solution Sr 1Àx La x Fe 12 O 19 is still a challenge.…”

Synthesis and characterization of polyaniline-based nanocomposites containing magnetic Li–Ni–La ferrite

“…Moreover, according to the results of the reported literatures, for other type of ferrite such as hexaferrites, the magnetic properties can also be tuned by the content of La 3+ ions [15][16][17]. It is reasonable that we choose these magnetic components to control the magnetic properties of nanocomposites.…”

Thermodynamic Assessment of the La-Fe-O System

“…at T = 1633 K as reported by Küpferling et al [4] who used the same technique as Moruzzi and Shafer, [20] or at T = 1653 K. [20] Neglecting small cation-nonstoichiometries in spinel and lanthanum ferrite, a simplified reaction can be formulated for its decomposition at T = 1663 K [4] or T = 1694 K. [20] It reads…”

“…[4] 3.2.3 Liquid Phase. The two-sublattice model for ionic liquids [62,63] was used for the description of the liquid phase of the La-Fe-O system.…”

“…Doped hexaferrites are significant for industrial applications because of their magnetic anisotropy. [4] They reveal a complex layered structure, with Fe occurring on five different sites [5] and pure anionic layers intercalating with mixed anioniccationic layers. [6] 2.…”