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COMPARATIVE STUDY BY SOL-GEL ACRYLAMIDE POLYMERIZATION VIA MICROWAVE AND SOLID STATE SYNTHESIS METHODS IN (Er2-x Srx)Ru2O6 SYSTEM

Published online by Cambridge University Press:  30 January 2018

A. Quiroz*
Affiliation:
Facultad de Ingeniería, Universidad Autónoma del Carmen, Av. Central S/N Esq. Con Fracc. Mundo Maya, Ciudad del Carmen, Campeche, C. P.24115México. Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, AP 70-360, Ciudad de México, 04510México.
M. Abatal
Affiliation:
Facultad de Ingeniería, Universidad Autónoma del Carmen, Av. Central S/N Esq. Con Fracc. Mundo Maya, Ciudad del Carmen, Campeche, C. P.24115México.
E. Chavira
Affiliation:
Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, AP 70-360, Ciudad de México, 04510México.
A. Tejeda
Affiliation:
Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, AP 70-360, Ciudad de México, 04510México.
O. Novel
Affiliation:
Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, AP 70-360, Ciudad de México, 04510México.
C. Flores
Affiliation:
Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, AP 70-360, Ciudad de México, 04510México.
K. E. Reyes Morales
Affiliation:
Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, AP 70-360, Ciudad de México, 04510México.
I. Castro
Affiliation:
Facultad de Ingeniería, Universidad Autónoma del Carmen, Av. Central S/N Esq. Con Fracc. Mundo Maya, Ciudad del Carmen, Campeche, C. P.24115México.
*
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Abstract

We have studied the structural and morphological properties on the pyrochlore (Er2-x Srx)Ru2O6 system, for x = 0.0, 0.02, 0.05, 0.07, 0.10, and 0.15. Polycrystalline samples were prepared by solid-state reaction (SR) and sol-gel acrylamide polymerization (SGAP). Thermogravimetric Analysis (TGA) was used to follow the thermal transformations such as reagents decomposition, phase transformation, chemical stability, and volatilization of organic material of samples. The reagents and synthesized products by the different methods of synthesis were characterized using powder X-ray diffraction (XRD). All samples crystallize Er2Ru2O6 PDF (72-7620) in the cubic unit cell with Fd$\bar{3}$m (No. 227) space group and form a solid solution up to x = 0.15. Scanning electron microscopy (SEM) shows considerable variations and similitudes in sizes, very few phases and shapes of polycrystals can be observed. Polycrystalline samples prepared by solid-state reaction (SR) present a grain size varies between 77 nm to 250 nm.

Type
Articles
Copyright
Copyright © Materials Research Society 2018 

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