Synthesis and X-ray diffraction study of LaM
1.5
II
MnFeO6 manganitoferrites (MII = Mg,Ca, Sr,Ba) |
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Authors: | B K Kasenov Sh B Kasenova Zh I Sagintaeva A Zh Abil’daeva |
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Institution: | 1. Abishev Chemicometallurgical Institute, ul. Ermekova 63, Karaganda, 100009, Kazakhstan 2. National Center for Complex Processing of Mineral Raw Materials of the Republic of Kazakhstan, ul. Zhandosova 67, Karaganda, 050036, Kazakhstan
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Abstract: | LaM 1.5 II MnFeO6 manganitoferrites (MII = Mg, Ca, Sr, Ba) have been synthesized by ceramic technology from lanthanum oxide, manganese(III) oxide, iron(III) oxide, and alkali-earth carbonates. X-ray powder diffraction shows that these compounds crystallize in cubic crystal system with the following unit cell parameters: for LaMg1.5MnFeO6: a = 20.232 ± 0.032 Å, V 0 = 8281.642 ± 0.096 Å3, Z = 10, ρX = 7.38 g/cm3, ρpycn = 7.29 ± 0.06 g/cm3; for LaCa1.5MnFeO6: a = 20.056 ± 0.017 Å, V 0 = 8067.388 ± 0.051 Å3, Z = 8, ρX = 5.89 g/cm3, ρpycn = 5.78 ± 0.06 g/cm3; for LaSr1.5MnFeO6: a = 20.117 ± 0.021 Å, V 0 = 8141.223 ± 0.063 Å3, Z = 8, V u.c. 0 = 1017.653 ± 0.008 Å3, ρX = 6.64 g/cm3, ρpycn = 6.56 Å 0.08 g/cm3; for LaBa1.5MnFeO6: a = 20.361 ± 0.025 Å, V 0 = 8441.066 ± 0.075 Å3, Z = 8, ρX = 7.31 g/cm3, ρpycn = 7.25 ± 0.07 g/cm3. |
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