IX. THERMAL EXPANSIVITY OF SOLIDS
IX. THERMAL EXPANSIVITY OF SOLIDS
IX. THERMAL EXPANSIVITY OF SOLIDS
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<strong>THERMAL</strong> EXPANSION <strong>OF</strong> NIOBIUM<br />
Sources of Data: Erfling 1942.<br />
Other References : Hidnert and Krider 1933.<br />
Discussion:<br />
Temp.<br />
0<br />
K<br />
0<br />
10<br />
20<br />
30<br />
40<br />
50<br />
60<br />
70<br />
80<br />
90<br />
100<br />
L293 - LT<br />
14 3<br />
14 3<br />
143<br />
14 1<br />
13 9<br />
13 7<br />
13 3<br />
129<br />
125<br />
121<br />
'293<br />
120 111<br />
I1<br />
Taken from NBS 29<br />
I1<br />
11<br />
I1<br />
It<br />
I1<br />
I1<br />
11<br />
II<br />
I1<br />
Also termed columbium.<br />
Table of Selected Values<br />
- 1 %<br />
L dT<br />
perOK<br />
0.<br />
.03<br />
.09<br />
.17<br />
.24 I'<br />
.31<br />
.36<br />
.40<br />
-44<br />
.47<br />
.52<br />
Temp.<br />
0<br />
K ,<br />
14 0<br />
160<br />
180<br />
200<br />
220<br />
240<br />
2 60<br />
273<br />
280<br />
293<br />
300<br />
<strong>IX</strong>-Q-1 ,<br />
99.4<br />
87.7<br />
75.5<br />
63 .O<br />
50 .O<br />
36.7<br />
23.1<br />
14.1<br />
9.2<br />
0 .o<br />
-5.0 , '<br />
--<br />
1 dL<br />
L dT<br />
per OK<br />
.56 x<br />
.59<br />
.62<br />
.64<br />
.66<br />
.67<br />
.68<br />
.69<br />
.69<br />
.70<br />
.70<br />
c<br />
I1<br />
I1 .<br />
I1<br />
I1<br />
I1<br />
It<br />
I1