40777 arabic
DESCRIPTION
DFT applicationTRANSCRIPT
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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 ,
,
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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
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2009 (1 ) -(4) -
)83.0 0=x( lA3)xVx-1eF(
K2 V )0002,la te otaK(.
)51.0=
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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
,
.
:). (
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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.,(
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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(
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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): (. (
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(4 :) ()Fe0.70-xVxAl0.30 V
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05
- )4(- ) 1( 9002
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,( .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.
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- )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.