US005849113A
Ulllted States Patent [19]
[11] Patent Number:
Murakami et al.
[45]
[54]
ELECTRICAL RESISTANT ALLOY HAVING
Masumoto; Naoji Nakamura, all of
Sendai, Japan
[73] Assigneez The Foundation: The Research
ft t
f E]
t .
d M
An]? 1 u g0 d F; “C an
oys’
en a1’ apan
Int. Cl.6 ............................ .. C22C 5/00; C22C 38/00
US. Cl. ........................ .. 148/430; 148/327; 148/320;
420/463
Field Of Search ........................... .. 420/463; 148/320,
148/337, 442, 430
’
3,136,634
4,481,045
4,728,580
[57]
ABSTRACT
by atomic %, of from 5 to 65% of Fe, and from 0.01 to 20%
in total of at least one auxiliary component selected from the
group consisting of 20% or less of Ni, 20% or less of Co,
20% or less ofAg, 20% or less ofAu, 20% or less of Pt, 10%
or less of Rh, 10% or less of Ir, 10% or less of Os, 10% or
[51]
[52]
[56]
Japan ................................... .. 420/463
ate for the sensor devices is attained by an alloy consisting,
agne 16
Appl' N05 720,064
Filed.
Sep_ 27 1996
[58]
204847 10/1985
High temperature CO€T11C10I1I of 'resistance (TCR) appropri
t.
[21]
[22]
i
Dec. 15, 1998
Primary Examiner—Deborah Yee
Attorney, Agent, or Firm—Kubovcik & Kubovcik
Inventors: Yuetsu Murakami; Katashi
I
Date of Patent:
FOREIGN PATENT DOCUMENTS
ATNléhéPERATURE COEFFICIENT DP
[75]
5,849,113
less of Ru, 10% or less of Cr, 5% or less of V, 5% or less of
Ti, 5% or less of Zr, 5% or less of Hf, 8% or less of Mo, 5%
or less of Nb, 10% or less of W, 8% or less of Ta, 3% or less
of Ga, 3% or less of Ge, 3% or less of In, 3% or less of Be,
5% or less of Sn, 3% or less of Sb, 5% or less of Cu, 5% or
less of Al, 5% or less of Si, 2% or less of C, 2% or less of
B, and 5% or less of a rare earth element, the balance being
References Cited
essentially Pd and minor amount of impurities, and said
U'S' PATENT DOCUMENTS
alloy having 4000x10'6s C.“1 or more of TCR in a tem
perature range of from 0° to 200° C. The alloy may further
6/1964 Zwingman ............................ .. 420/463
11/1984 Watanabe ....... ..
Contain from 5 I0 65% of MH
420/463
3/1988 Grasselli et al. ...................... .. 420/463
8 Claims, 19 Drawing Sheets
1 2000
INVENTIVE
A
ALLOY (140.210)
is) 10000
(O
I
2
v
8000
—
-—
6000 —
e
0i
0
l.
COMPARATIVE MATERIAL (Pt)
4000 —-——————-————--—-———--—--—-—---—-— —-=*
0
l
l
l
I
l
50
100
150
200
250
300
U.S. Patent
Dec. 15,1998
Sheet 1 0f 19
5,849,113
PRIOR ART
Fig.1(A)
Rv
R2
R0
U.S. Patent
Dec. 15,1998
Sheet 2 0f 19
(.LIN? AHVHLIGHV) AV
5,849,113
U.S. Patent
Dec. 15,1998
Sheet 3 0f 19
5,849,113
1'9. 3
(A)
(B)
1 1000
7000 ‘f
TCR
TCR
“6Q0.65
20 O
Ni,Co.Ag.Au.Pt.Rh.|r,Os,RUorCr
(ot%)
U.S. Patent
Dec. 15, 1998
Sheet 4 0f 19
5,849,113
Fig. 4
(A)
1 1000
(B)
10000
9000
8000
7000
(1p9cm)
20
p
|
0
5
l
10 O
v .Ti.Zr,Hf,Mo.Nb.W.T0,Go.Georln
(ot%)
U.S. Patent
Dec. 15,1998
Sheet 5 0f 19
i9. 5
(A)
(B)
1 1000
10000 -
olméloc
100
Be.Sn,Sb.Cu.Al.Si.C.B.Y,Lu°rCe
(ut%)
5,849,113
U.S. Patent
Dec. 15,1998
Sheet 6 0f 19
5,849,113
F i g. 6M)
1 1000
10000
9000
O
10
20 O
Me (ot%)
10o
5
10
Me (ot%)
'
—-
|
10
20 O
-—
80 —
60 —
O
2 O
Me (c1t%)
l
5
M6 (Ot%)
10
U.S. Patent
Dec. 15, 1998
Sheet 7 0f 19
5,849,113
Fig. 7(A)
1 1000
I
I
10000
(MaRTc-6°C")
9000
8000
10
Me (ut%)
M8 (012%)
Fig. 7(8)
100
20
I
I
5
Me (ot%)
___
I
10 0
l
5
Me (ot%)
_
10
U.S. Patent
Dec. 15,1998
Sheet 9 0f 19
5,849,113
_
_
_
d/
_,
O OP o o ,
(WW/“DA
HEIIM :IO CIEIHdS SNIAHANOO
U.S. Patent
Dec. 15,1998
Sheet 10 0f 19
5,849,113
Fig. 70
150
,
T°C><1h. A0
COMPARATIVE ALLOY
100 ~
LOCHAXIYKFNEDSR
-
(#m)d
INVENTIVE ALLOY
5O
500
1000
T ('0)
Tm
1500
U.S. Patent
Dec. 15, 1998
Sheet 11 0f 19
5,849,113
77
I50
I
I
I
IOOO°C X 1:. AQ
100
COMPARATIVE ALLOY
CLOHAIXYKFNEDSR (11m)d
50
INVENTIVE ALLOY
U.S. Patent
Dec. 15,1998
Sheet 12 0f 19
F1'9, 72
5,849,113
U.S. Patent
Dec. 15,1998
Sheet 13 0f 19
5,849,113
Fig. 73
1 2000
|
I
I
|
T
‘I 0000 ——
INVENTIVE ALLOY (No.98)
(1T0R0-60") C007O(38
|
l
l
|
COMPARATIVE MATERIAL (Pt)
4000 ------------------- - - J
200 —
g 150 —
.
INVENTIVE
Ci
Q
ALLOY (No.98)
100
“
50 ~
—
COMPARATIVE
0 _ _ " T " "7-
0
50
100
MATERIAL f2 _ _ _ _
l
|
I
150
T (“0)
200
250
500
U.S. Patent
Dec. 15,1998
Sheet 14 0f 19
5,849,113
Fig. 74
12000
I
I
I
|
l
l
I
I
100
200
300
400
500
1 1000
10000
9000
(1RTc0-60“)
8000
7000
6000
5000
0
T (°C)
600
U.S. Patent
Dec. 15,1998
Sheet 15 0f 19
5,849,113
Fig. 15 (A )
12000
INVENTIVE
A
T
g.)
ALLOY 010.210)
10000~
_
8000-
—
6000—
_
‘fO
6
0C
0
*
COMPARATIVE MATERIAL
Pt
4000 -------------- ---(--)---_--_~
0
I
l
l
I
l
50
100
150
200
250
300
T (‘*0)
F lg. 15( B)
200 A
INVENTIVE
-
ALLOY (NO.210)
E 150
9
O.‘
5
Q 100
50
0
0
50
100
150
200
250
500
U.S. Patent
Dec. 15,1998
Sheet 16 0f 19
5,849,113
I9. 76
12000
1 1000 —
10000 -
210
225
9000 —
232
246
8000 —
7000
6000
5000
100
200
300
T (‘0)
400
500
600
U.S. Patent
Dec. 15, 1998
Sheet 17 0f 19
5,849,113
80 r.
F i g. 1 7 (B )
70
T
I
‘
—--I
l R:
,'
a
|
I I
60
_
Vi
\r’” 2
1 R2
$5
>
RV
,'
50
INVENTIVE ALLOY
(NO.IO7)
L11
2
O
>
*5
INVENTIVE ALLOY
50
_
(NO.2IO)
_
CL
D
O
20
IO
COMPARATIVE MATERIAL (Pt)
0
_.
O
__
_ ______+ —————————— ——
500
CO GAS CONCENTRATION (mm)
Fig. 17(A)
IOOO
U.S. Patent
Dec. 15,1998
Sheet 18 0f 19
5,849,113
200 "
Fig
."1
150 -
g
5
>
<1
LU
(<1D
F
100 ~
_I
O
>
’_
3
n_
F
:>
O
50 "
INVENTIVE ALLOY
(NO-109.210)
, COMPARATIVE
'\ MATERIAL (Pt)
\
\
O
T5 :1‘ ‘\OOBC
" ‘n’ ‘#2116070’
0
1000
H2 CONCENTRATION (ppm)
Fig. 18(A)
2000
U.S. Patent
Dec. 15,1998
Sheet 19 0f 19
5,849,113
32~.ul
$.2PQ
1/.25
0 9.
0m
0m
0 .“
CON
(N11) AV HSVLWOA i?dl?O
w00mOONOOv09.O “Pmak0ni;mk