XV. THERMAL DlFFUSlVlTY

c o n t e n t s

A . A l u m i n u m

8 . C a p p e r

C. N i o b i u m

D. S i l i c o n

E , T i n

F. A l u m i n u m A l l o y

I . 6 0 6 1 - T 6

G. S t a i n l e s s S t e e l

I . 3 0 4 A

XV-INDEX

THERiLAL DIFFUSWITY OF ALUMINUM

Selected Valuss for Annealed 99.996' % A r e Aluminum withp -3.1 x 10'90hrn c a 0

0.1

0.2

0.3

0.4

0 . 5 0.6

0.7

0.8

0.9

I. 0 I. I 1.14

5 10

20

30

40

50

60

C Y , cm2 sec-1 Normal Superconducting

52000* 550' 4400

15100

22400

56000 26200

27800

28000

27400

26400

55000 25300

23600

23000

360003'

16 0 0 0 ' p

25GO*

330:'

76''

26*

11.4'

.C

T,K

70

80

90

100

150

200

300

400

500

600

700

aoo

0) 940

(fcc) 930

1000

1100

1200

1300

1400

a, cm2 Bet-1

6.3*

4.0

2.9*

2.27 - 1.32*

Ilr

*

i.o9*

0.97

0.94

0.90

0.84

0.80

0.75

0.69'

0.35*

0.36*

0.37*

0.39*

0.40* 0.42*

Data Source and Remarks Eight sets of esperimental datz a re available over the temperature ra.z,?ges

0.2 to 4.1 K and 295 to 830 K. Selected values at the lowest temperatures l ie * between the data of Zavaritskii (1959 [I] and Howling, Mendoza, and Z i m m e r n m (1955) [2]. From 295 to 630 K selected values l ie close to the dsta of Sonnenschein and Winn (1960) (31, Jenkins and Parker (1961) [4], and Schnlidt

(1961) [5], noting that the selected values a r e for purer aluminunr than those

nieasured by.these authors.

._ .,. Calculated or estirnahed. S u mllers in sqd:ire brackets designa:e re.ferences appearing under the he:iding +,

€3 I a LlOG It.-\ P H Y .

XV-A-1 .

105 7 5

3 2

lo4 7 5

3 2

lo3 ': 5 - 7

u)

a 3 E - 2 0

h c .- .s 102

3 7 z 5

u)

- E 3 L

2 2

IO 7 5 3 2

I 7 5

3 2

I-

lo-'

Temperature, K

Thermal Diffusivity of Aluminum

XV-A- 2

THERMAL DIFFUSIVITY OF COPPER

(I) Selected ValuLs for Annealed 99.999*% Pure Copper with pow 0.85 x 10-90hm cm - a, cm2 5ec-* L K .

0.1 0.5

JL 5

90

15 28

30

40

50

60 70

88

90 100

150

200

300

400

0 1 , crn'~ec-1 280000* 287000*

275000*

1050008 25200* 6200*

1570* 174* 38*'

13.6* 6.9*

4.3* 8

3. 1 2,5*

2.1 I. 48* I. 28*

I. 15 1.11 -

*

Data Source and Remarks

T , K 500 600

700 800

900 I000

1100 1200

1300

(fcc)f350 0) 1360

1400 1500 1600 1700 1800 1900 2000

Thirty-five se t s of experimental dat are available

I. 08 I. 04

I. 01 0 .98

0 . 9 4 0.91 0.39

0.85 0 . 8 2 0 .808 0.342* 0.344* 0.347* 0.351* 0.354* 0.358* 0.362* 0.366*

e r the tcnipe t u r t

range 295 to 1284 K. Selected values l i e close to the data of Sidles and Dsnielson

(1960, 1953, 1956) [6 ,7 ,8] , Butler and Inn (1957) [9], hlrozaLvski, Andrev;, n u l ,

Eht@ , Strauss , and T s u z u h (1963) [lo] hloser and Kruger (1963) [ l l] , El-hifini

and Chao (1956) [12], Sonnenschch and Winn (1960) [SI , and Jenkins and Parker

(1961) [4]. It is noted that the selected values are for p u r e r copper than those measured by these authors.

,

. I ----_ Calcula ted o r e s t i n u t t d .

e XV-B-1

- '0 Q fn

Temperature, K

Thermal Diffusivity of Copper

XV-B-2

THERAMAL DIFFUSIVITY OF NIOBIUM

Selected Values for Annealed 99.99' % Pure Niobium with Po -2 .7 x ohm cm*

0.1 ' 1

1.5 2

2.5 3

4

5 6

7

8

9

9.22

10

15

20

30

40 50

60 70

80

9Q

~ 1 , cm-2sec-* T,K

1020* 75000 100

Normal Superconducting

1290 48000 150

33000 200 14000 300

4200 400

1260 500

530 600 860 460 700

440 800

380 900

300 I 0 0 0

210 I I 0 0

200 1200

3 10 1300

97 1400

34 1500 6.8 1600

2 . 5 1700

I. 26 1800

0.81 1900

0 .59 2000 0.47 2200 0.40 2400

0.353 0.264 0.242

0.234

0.236

0.241

0.246 0.252

0.256

0 . 2 6 1

0.266

0.270 ,

0.274 0.278

0 .281

0.254

0.287

0.290

0. ,392

0.294

0.296

0.298

0.300

Data Source and Remarks

No experimental data are available, Selected values a r e calcuIateJ o r estimated.

v All values are calculated o r estimated.

I

xv-c-1

c

xv-c-2

T,K I 2

3

5 7

10 15 20 30

40 50 50 70 80

90 100 150

THERMAL DIFFUSIVITY OF SILICON

Selected Values for High-Purity Silicon Single Crystal

Q, cm2 8ec-1 T,K a, em* 8ec-l 24000* . 200 2.08"

46000* 300 0.88

53700* 400 0.55

54500" 500 0.40

45000" 600 0.30

31000" 700 0.24

14200" 800 0.20

5900* 900 0.168

1120" 1000 0.146

350" 1100 0.133

152* 1200 0.121 80* 1300 0.112 49* 1400 0.104* 31* 1500 0.099* .

21.3" 1600 0.094:' 15.1* 1680 0. Q91*

4.4*

Data Source and Remarks Four sets of experimental data are available over the temperature

range 300 to 1390 K. Selected values from 300 to I100 K agree well With the data of Shanks, Maycock, Sidles, and Danielson (1963) [la].

' ' I Calculated or estimated. e XV-D-1

Thermal Diffusivity of Silicon

XV-D- 2

T,K

0. I

0.3

0.5

I

I. 5 2

2.5

3

3.5

3.69

4.

5 i o 15

20

25

30

40

THERMAL DIFFUSNITY OF T

Selected Values for 99.999% Pure Tin with po =O. 6 x ohm cm" -

O! , cm*aec-l T , K Normal Superconductivity 360000" 12300 50

17900 6C

350000 28400 70

3200GO 87000 80

123000 90

216000 112000 100 89000 150

109000 64000 200

44000 300

39000 400

44000 500

1320Q @ct) 504

I 9 0 (I) 506

30 600

10 700

4.8 80Q

3.0 900

I. 7 io00

a, cm* aec-1

I. 18 0.93

0.80

0.72

0.66

0.61

0.51

0.46

0.40

0.35

0.32

. 0.32

0.176

0.190

0.202

0.213

0.224

0.235

Data Source and Remarks

No experimental data are available. Selected values are calculated or estimated.

22 -411 values are calculated or estimated.

XV-E-1

XV-E-2

THERMAL DIFFUSIVITY OF ALUMINUM ALLOY 606L-TBS

T,K

I 5 10

25 50 75

100 150 200 250 300 400 500 600 780 800 850

85" 64 34

7.7 I. 61 0.92 0.75 0.65 0.63 0.64 0.64 0.66 0.69 0.67 0.63 0.60 0.58

Data Source and Remarks

estimated. Heating 2t moderately high temperature can destroy the "T6" No experimental data are available. Selected values are calculated or

-

temper and the thermal conductivity will consequently become higher (see for aluminum alloy 7075-T6 for comparison).

-4 All values calculated or estimated.

XV-F-1.1

Temperature, K

Thermal Diffusivity of Aluminum Alloy 6061-T6

XV-F-1.2

THERMAL DIFFUSIVITY OF STAINLESS STEEL 304A

1 .

5 10 25 56 75 100

150

208 25Q

0.56*

0.91"

0.44*

0.060*

0.88*

0.138*

0.047* 6.042*

0.041* 0. Q41*

300

400 500 600 700 8QO

900 io00 1 100 1200

0.042 0.843 0.044 0.045

0.047 0.049 0.050 0.851 0.052 0.053

Data Source and Remarks

There are two sets of available experimental data from Jenkins and Parker (1961) [4] over the temperature range 293 to 1263 K. Selected values above room temperature are derived from their data with modifications and adjustments.

* Calculated or estimated.

XV-G-1.1

Temperature, K

Thermal. Diffusivity of Stainless Stee l . 304A

XV-G-1.2