X-ray spectral and Mossbauer investigations of structure defects and the degree of inversion of manganese-zinc ferrites

1982 ◽  
Vol 25 (3) ◽  
pp. 200-203
Author(s):  
P. P. Kirichok ◽  
V. P. Pashchenko ◽  
V. I. Kompaniets ◽  
G. T. Brovkina
Keyword(s):  
Structure Defects ◽  
X Ray ◽  
Manganese Zinc ◽  
Manganese Zinc Ferrites

scholarly journals Structural and Mössbauer Spectral Studies of Nanosized Aluminum Doped Manganese Zinc Ferrites

2008 ◽  
Vol 2008 ◽  
pp. 1-7 ◽  
Author(s):  
R. L. Dhiman ◽  
S. P. Taneja ◽  
V. R. Reddy
Keyword(s):  
Lattice Parameter ◽  
Ion Concentration ◽  
Aluminum Concentration ◽  
Spectral Studies ◽  
Hyperfine Fields ◽  
Ionic Radii ◽  
X Ray ◽  
Manganese Zinc ◽  
Aluminum Ions ◽  
Manganese Zinc Ferrites

Nanoparticles of aluminum-substituted manganese zinc ferrites,Mn1.05Zn0.05AlxFe1.9−xO4with0.4≤x≤1.0were synthesized by solid-state reaction route and characterized by XRD, TEM, and Mössbauer spectroscopy measurements. The particle size is found to very from 46 to 28 nm with increase of aluminum ions concentration. The unit cell parameter “aO” is found to decrease linearly with aluminum ions concentration due to smaller ionic radius of aluminum. The cation distributions were estimated from X-ray diffraction intensities of various planes. The theoretical lattice parameter, bulk density, porosity, X-ray density, oxygen positional parameter, ionic radii, jump length, as well as bonds and edges lengths of the tetrahedral (A-) and octahedral (B-) sites were determined.Fe57Mössbauer spectra recorded at room temperature were fitted with two sextets corresponding toFe3+ions at tetrahedral (A-) and octahedral (B-) sites. The magnetic hyperfine fields at A- and B-sites show a gradual decrease with increase ofAl3+ion concentration, which has been explained on the basis of supertransferred hyperfine field. The cation distribution obtained from X-ray intensities and Mössbauer data indicates a decrease inFe3+(B)/Fe3+(A)ratio with increasing aluminum concentration thereby suggesting a decrease in ferrimagnetic behavior.

Magnetic After Effects in Manganese Zinc Ferrites

1961 ◽  
Vol 16 (8) ◽  
pp. 1641-1641 ◽  
Author(s):  
Tsuneo Akashi ◽  
Takashi Okada
Keyword(s):  
After Effects ◽  
Manganese Zinc ◽  
Manganese Zinc Ferrites

scholarly journals Thermal behaviour study of solid state compounds of manganese (II), zinc (II) and lead (II) with cinnamic acid

1998 ◽  
Vol 23 (0) ◽  
pp. 09-16
Author(s):  
Marco Aurélio da Silva CARVALHO FILHO ◽  
Massao IONASHIRO
Keyword(s):  
Thermal Stability ◽  
Aqueous Solution ◽  
Differential Scanning Calorimetry ◽  
Cinnamic Acid ◽  
X Ray Diffraction ◽  
Scanning Calorimetry ◽  
X Ray ◽  
Manganese Zinc ◽  
Behaviour Study ◽  
Derivative Thermogravimetry

Compounds of cinnamic acid with manganese, zinc and lead have been prepared in aqueous solution. Thermogravimetry, derivative thermogravimetry (TG, DTG), differential scanning calorimetry (DSC), X-ray diffraction and complexometry have been used in the characterization as well as in the study of the thermal stability and interpretation concerning the thermal decomposition.

Manganese-zinc ferrites with improved properties

1998 ◽  
Vol 08 (PR2) ◽  
pp. Pr2-457-Pr2-460
Author(s):  
J. Dreikorn ◽  
R. Dreyer ◽  
L. Michalowsky ◽  
J. Rossel ◽  
U. Sicker
Keyword(s):  
Manganese Zinc ◽  
Manganese Zinc Ferrites

Fracture analysis of single crystal manganese zinc ferrites using indentation flaws

1984 ◽  
Vol 32 (10) ◽  
pp. 1719-1729 ◽  
Author(s):  
K. Tanaka ◽  
Y. Kitahara ◽  
Y. Ichinose ◽  
T. Iimura
Keyword(s):  
Single Crystal ◽  
Fracture Analysis ◽  
Manganese Zinc ◽  
Manganese Zinc Ferrites

scholarly journals Microstructure and properties of commercial grade manganese zinc ferrites

1979 ◽  
Vol 15 (6) ◽  
pp. 1855-1857 ◽  
Author(s):  
H. Tsunekawa ◽  
A. Nakata ◽  
T. Kamijo ◽  
K. Okutani ◽  
R. Mishra ◽  
...  
Keyword(s):  
Microstructure And Properties ◽  
Commercial Grade ◽  
Manganese Zinc ◽  
Manganese Zinc Ferrites

Physicochemical properties of high-induction manganese-zinc ferrites

1985 ◽  
Vol 24 (4) ◽  
pp. 304-307 ◽  
Author(s):  
V. P. Pashchenko ◽  
G. T. Brovkina ◽  
V. V. Klimov ◽  
G. F. Afonina ◽  
L. N. Sharanevich
Keyword(s):  
Physicochemical Properties ◽  
Manganese Zinc ◽  
High Induction ◽  
Manganese Zinc Ferrites
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