Ferrites are ceramic magnetic materials which behave like a conventional ferromagnetic. Ni-Zn ferrites are commercially used as electromagnetic interfaces in hard disc drives, laptops and other electronic devices. Here we are going to report on the structural and mechanical properties of Al doped Ni-Cd ferrites synthesized by standard double sintering ceramic method by using AR grade Al oxide, Ni oxide, Cd oxide and ferric oxide in molar proportions with a general chemical formula Ni0.5 Cd0.5 Alx Fe2-x O4 where x=0.1 to 0.4.X-ray analysis confirms the formation of single phase FCC spinel structure. The decrease in lattice constant with Al concentration is attributed to Vegard’s law. IR spectra indicate prominent absorption bands near 400cm-1and 600cm-1 which are assigned to fundamental vibrations of complexes in A and B sites respectively. SEM micrographs exhibit fine grains without segregation of impurities. The average grain diameter is found vary from 1.00µm to 0.9 µm which is in agreement with Vegard’s law.

1.
Venkaraju
,
c
;
Satish Kumar
,
G
;
Sivakumar
,
K.
J. Magn. Mater.
2010
.
322
(
2
),
230
233
2.
Goldman
,
A.
Modern Ferrite Technology Van Nostrand Reinhold
:
New York
1990
3.
Ramakrishna.
K.
Vijaka
Kumar.
K.
Ravinder
.
D. Adv. Mater. Phys.chem.
2
(
2012
)
185
191
4.
Waldren
R.D.
Phy-Rev.gg
;
6
, (
1953
)
1727
1735
5.
V.G.
Parmar
,
Modi
,
K.B.
and
Joshi
,
H
,
Indian J. pure Appl. Phys.
,
1999
, Vol
37
,.
3
,
207
214
6.
M.R.
Patil
,
M.K
Rendale
,
S.N
Mathad
,
R.B.
Pujar
Int J. Self propagating high temperature synthesis.
26
. (
2017
)
33
39
7.
M.R.
Patil.
M.K
Rendale
,
Mathad
S. N
,
R.B.
Pujar
Int J. Self propagating high temperature synthesis.
24
. (
4
) (
2015
)
241
45
8.
R.B.
Pujar.
S.S.
Bellad.
B.K.
Chougule
Matter. Sc.letters.
18
(
1999
)
1083
1086
9.
Mathad
.
S.N.
Puri
.
V
Int. School. Res. notices.
ID 683936 (
2014
)
10.
Smit.
J.
Magnetic properties of Materials
McGraw Hill.
N.Y
.(
1971
).
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