-
48
2009 (1 ) -(4) -
-07.0eF 03.0lAxVx
03.0lAxVx-07.0eF
K005 K003 )..0..00...0.0.0.0.0.( .
, .
, ) (
.
)epyt-n(
( ) ))epyt-p ,
,
-
48
2009 (1 ) -(4) -
-: )5002,lettiK(
)TBK / aE-( pxe )T( f = qN = )T( f
TBK/2a2 q egrahc fo smota ytirupmi fo noitartnecnoc :N
ycneuqerf lanoitarbiv cimota citsiretcarahc : tnatsnoc ecittal
:a
. oC iN nM lA-eF
)8791,nisioM(lA lA-eF lA lA3eF
)9691,lleiurpS & nosreppE(lA3eF lAeF 01bN63lA45eF smargaid
esahp citengam )8002,la te aromaZ( , 02bN23lA84eF
)8002,la te euL( . h63 aGV2eF
eG aG )8002,la te rederhS(.)epyt-n( )epyt-p(
)rC,V,iT=eM( lAeM2eF ,
lArC2eF lAV2eF lAiT2eF )...0,(.latemimes .
)...0,( )rC, oC , nM=MT ( 03.0lAxMTx-07.0eF
03.0lAxoCx-07.0eF rC nM
) 0002,la te otaK( .oC
-
50
2009 (1 ) -(4) -
)83.0 0=x( lA3)xVx-1eF(
K2 V )0002,la te otaK(.
)51.0=
-
50
2009 (1 ) -(4) -
)retaeH(
)natnatsnoc-uC( )selpuocomrehT(
yelhtieK( .) . ( . )MMD771
2V 1V -: T 2T 1T
CD( ] 2/)2T+1T(=T[ I )drakcaP ttelweH( ) ylppus rewop
).pmA9-01( )akulF(
V
R
,
.
:). (
-
50
2009 (1 ) -(4) -
T ) 0 (
) 03.0,02.0,01.0,60.0,20.0 = x(: 03.0lAxVx-07.0eF ..0K ...K
03.0lA01.0V06.0eF 03.0lA03.0V04.0eF
).99.,(
)etats walf( )2591,daeR&yelkcohS)(8491,yelkcohS &
nosraeP(
, (.99., )
03.0lA02.0V05.0eF )K005-K003(
,
)etats walf( 2591(,daeR & yelkcohS)(8491,yelkcohS&
nosraeP(
03.0lA60.0V46.0eF )K054 T(
03.0lA20.0V86.0eF ).99.,(
-
50
2009 (1 ) -(4) -
) . ( . )8891,la te ramO( 03.0lAxVx-07.0eF) K054 K093 K503(
01.0V V
n )dohteM eborP toH(
T/0001 nL ).( . 03.0lA60.0V46.0eF 03.0lAxVx-07.0eF
)ve 1501.0( 03.0lA02.0V05.0eF )ve 4260.0( )K503-K573( )ve
2570.0( 03.0lA01.0V06.0eF
03.0lA03.0V04.0eF )K573-K005()ve 5161.0( )K253-K005( )ve 9801.0(
)K603-K253()ve 1480.0( -K043( )ve 7350.0( 03.0lA20.0V86.0eF
)K043-K005()ve 0471.0( )K013 )setats dezilacoL(
03.0lA20.0V86.0eF T )): (0(
-
80
2009 (1 ) -(4) -
)gnippoh(
) 4 ().5891,romekalB( V V 03.0lAxVx-07.0eF . 03.0=x
.
) K054 K093 K503 (:).( 03.0lAxVx-07.0eF
)mc ) -1- K503 K093 K054
03.0lA03.0V04.0eF 9.00 0000. .404. 03.0lA02.0V05.0eF 040. 0.400
..0. 03.0lA01.0V06.0eF .40. 9.0. 0000 03.0lA60.0V46.0eF 9.0. .40.
.40. 03.0lA20.0V86.0eF ..0. .00. ..00
03.0lAxVx-07.0eF T/0001) nL): (. (
-
00
- )4(- ) 1( 9002
Reference Blakemore,J.S.,(1985):Solid State
pysics"2NDed.,W.B.saunders comp, 345p
Epperson,J.E.and Spruiell,J.E.,(1969):An x-ray single crystal
lnvesitgation of iron-rich alloys of ironand aluminum-1 phase
relashions ln alloys containing between 14 and 23 at%
aluminum.
J.phys.chem.solids,Vol.30,pp:1721-1732.
Guo,G.Y.,Botton,G.A.and nishino,Y.,(1998):Electronic structure
of possible 3D heavy-fermion compound Fe2Val. J.phys.:condens.
matter,Vol.10,pp:L119-L126.
Kato,M.,Nishino,Y.,Mizutani,U.,Asano,S.,(2000): Electronic,
magnetic and transport properties of (Fe1-xVx)3Al
alloys.J.phys:
condens. matter.Vol.12,pp:1769-1779.
Kato,M.,Nishino, Y.Mizutani,U.Watanabe,Y Asano,S.,(2000):
Temperature dependence of electronical resistivity
in(Fe1-xTix)3Al
alloys. J.phys: condens. matter.Vol.12,pp:9153-9162.
Kittel,C.,(2005):Introduction to solid state physics 8th
ed.,John Wiley and sons,inc.
Li,P.W.,Lee,S.N.and Danelson,G.G.,(1972):Hall Mobilitmobility
and Magnetoresistanc Of N-Type
Mg2ge,phy.rev.b,VOL.6,pp:442-453.
Lue,C.S., Huang,J.W., Tsai,D.S., Sivakumar,K.M. And Kuo,Y.K.,
(2008): effects of ge substitution on the thermoelectric properties
and
pseudogap characteristics of fe2vga , J.phys.: condens.
Matter
20,255233(5p).
(4 :) ()Fe0.70-xVxAl0.30 V
-
05
- )4(- ) 1( 9002
Moisin,A.M.,(1978):Neutron scattreing study of local ordering in
fe-ni and fe-al alloys,phys.sol.stat.(a) Vol.47,pp:305-309.
Omar,M.S., Ameen,M.M., Murad,I.M., Hanna,M.H.,(1988):
Thermoelectric power in the ternary doped cuge2p3
compound,Zanco
,The Scintific Journal of Salahaddin University
,Vol.1,pp:55-65.
Pearson, G.L., Shockley,W.,(1948):Modulation of conductance of
thin films of semiconductors by surface charges, phy. Rev.
Vol.74,pp:232-233.
Seegr,K.,(1982):Semiconductor physics an introduction second
corrected and update edition,newyork.
Shockley,W. and Read,W.T.,(1952):Statistics of the
recombinations of holes and
electrons,Phy.rev.Vol.87,pp:835-842.
Shreder,E.,Streltsov,S.V., Svyazhin,A., Makhnev,A.,
Marchenkov,V. V.,Lukoyanov,A. and Weber,H.W.,(2008):Evolution of
the electronic
structure and physical properties of fe2meal(me=ti,
v,cr)heusler
alloys,J.phys.:condens.Matter,Vol.20,045212,7p.
Zamora,L.E., Alcazar,G.A.P., Tabares,J.A., Betancur,J.D.,
Sives,F.R.
,Jaen,J.,Greneche,J.M., Marco,J.F. And Gonzalez,J.M.,
(2008):
Magnetic phase diagrams for fe54al36nb10 and fe48al32nb20
alloys,J.phys.d: Appl.phys.Vol.41,155010,9p.
,( .99.):
(Ag6Ge10P12) , , . (, ..99.):
CuGe2+xP3, , . ( . . . .99.): , .
, , . ,56PP . . ( 0... ):
Fe-TM-Al(TM=Mn,Co,Cr) , ,,62PP . ( . 0... ): Fe-TM-
Al(TM=Mn,Co,Cr) , , ,67PP.
-
05
- )4(- )1( 9002
Study of the effect of temperature on the electrical
conductivity properties of the alloy Fe0.70-xVxAl0.30
Rosure Borhanalden Abdulrahman College Of Science - Universety
of Kirkuk
Abstract
Been studied the influence of temperature on the electrical
conductivity properties of
the alloy samples Fe0.70-xVxAl0.30 manner, and processed
electric arc furnaces, which
enters as an additive component vanadium concentration of
extenuating equal to (0.02
and 0.06 and 0.10 and 0.20 and 0.30) in the Over the temperature
was 300K to 500K to
calculate the values of activation energy and determine the type
of electric charge
carriers. The measurements showed that the connectivity of the
samples increases
electrical conductivity, up from both the temperature and the
concentration of vanadium
element in the alloy, it was noted that the energies of these
samples in the revitalization
of different values, which indicates the existence of different
mechanisms for the
delivery of which was becoming increasing temperature and values
less than the values
of the energy gap, shown the results of the measurements that
the electrons are the
majority of the positive electric load in the samples.
