SYNTHESIS AND X-RAY STUDY OF CHROMITE – GADOLINI FERRITE COMPOSITION Gd(1-Х)МeCr0.5Fe0.5O3( Me = Ca, Mg, x≈0,7)

Abstract

In the present work the X-ray study of the synthesized sol-gel by the method of new chromite-ferrites phases with the Gd(1-Х)МeCr0.5Fe0.5O3 (Me = Ca, Mg, x0,7) composition was presented.Chromium oxide, iron oxide, gadolinium oxide, metal carbonates, citric acid and glycerin were used as initial materials. It is shown that the use of citric acid and glycerin as a precipitator has a positive effect on monophase samples. Rainfall was subjected to homogenizing roasting in the temperature range 600-900°C. The reaching the level of sintering of samples was controlled by theX-ray diffraction profiles. The phase composition, crystal characteristics, type of the symmetry, unit cell parameters, radiographic and pycnometric densitieswere investigated by the method of X-ray phase analysis. The correctness of the X-ray diffraction results of the mixed ferrite complex was confirmed by a good agreement between the experimental and calculated values of the inverse values of the squares to the interplanar distances (104/d2). Satisfactory consistency of the X-ray values and pycnometric densities proves the correctness of the experimental results. The article presents results of synthesis and XRF studies of new complex oxide chromite–gadolinium ferrites doped with alkaline earth metals (Са, Mg). Results revealed the formation of samples with multifaceted structure. Developed oxide of the chromite – ferrite gadolinium has orthorhombic structure.

References

[1] Zvezdin A.K., Pyatakov A.P. Phase transitions and the giant magnetoelectric effect in multiferroics // UFN. 2004. Vol. 174, N 4. P. 465-470.
[2] Devi P.S. (1993). Citrate gel processing of the perovskite lanthanide chromites // Journal of Materials Chemistry. 3(4). 373.doi:10.1039/jm9930300373.
[3] Mataev M.M., Sukhodayev P.O., Tursinova Zh.I., Sarsenbaeva Z.B., Seitbek A.Zh. Synthesis, X-ray study and determination of the particle size of manganites // International scientificpractical conference “Development of education and science by modern directions in the field of chemistry, biology, ecology and geography”. 2017. P. 68-70.
[4] Mataev М.М., Abdraimova M.R., Saxena S.М., Nuketaeva D.Zh., Zheksembieva B.T. Synthesis and X-Ray Analysis of Complex Ferrites // Key Engineering Materials. ISSN: 1662-9795. Vol. 744. P. 393-398. doi:10.4028/www.scientific.net/ KEM.744.393/© 2017 Trans Tech Publications, Switzerland.
[5] Mataev M.M., Saxena S.M., Patrin G.S., Tursinova Zh.Y., Kezdikbayeva A.T., Nurbekova M.A., Baitasheva G.U. Manganite synthesis by different methods // Oriental journal of chemistry. 2018. Vol. 34, N 3. P. 1312-1316.
[6] Mataev M.M., Patrin G.S., Tursinova Zh.Y., Abdraimova M.R., Yurkin G.Yu. Synthesis and Magnetic Properties of Crystals Bi2BaFe4O10 // Journal of Siberian Federal University. Mathematics & Physics. 2018. 11(4), 411-4.