ISSN:
1432-0630
Keywords:
61.10
;
78.30
;
78.70
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
Abstract The mixed ferrites Cu1+x Ti x Fe2−2x O4 with x=0, 0.1, 0.2, 0.3 and 0.4 were prepared by standard ceramic techniques. Both structural and IR investigations were carried out. The X-ray diffraction pattern showed that the prepared samples are pure spinels. It is also indicated that the system exists in two crystallographic forms, the tetragonal structure (for x=0, 0.1) and the cubic structure (for the rest of x). Some physical properties, such as density, porosity and shrinkage were also determined throughout this study. The IR spectra revealed two bands at 575 cm−1 and 400 cm−1. These bands were assigned as v 1 and v 2, respectively. v 1 and v 2 are associated with the vibrations of the tetrahedral and octahedral groups, respectively. The cation distribution (Cu t 2+ Fe 1−t 3+ ) [Cu 1+x−t 2+ Ti x 4+ −Fe 1−2x+t 3+ ]O4 is proposed and used to interpret and explain the obtained results.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00331717
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