206 Table 224. 



THERMAL CONDUCTIVITIES AT HIGH TEMPERATURES. 



Material. 



Nickel 



Aluminum 



Iron 



Copper 



Graphite 

 (Artificial) 



Amorphous 

 Carbon 



Graphite brick 



Carborundum brick 



Magnesia brick 



Gas retort brick 



Building and terra 



cotta 



Silica brick 



Stoneware mixtures 



Porcelain (Sevres) 



Fire clay brick 



Limestone 



Granite 



Authority. 



Angell 



Angell ' 



Hering 



Hering 



Hering 



Hansen ^ 



Hansen 2 



Hering 



Wologdine 



Poole 3 



Poole 2 



Temperature 



Centigrade 



Degrees. 



300 



400 



600 



700 



800 

 1000 

 1200 



100 



200 



300 



400 



600 

 100-727 

 100-912 



100- 1245 

 100- 197 

 100- 268 

 100-370 

 100 - 541 

 100-837 

 100 - 390 

 100- 546 

 100-720 

 100-914 

 30 - 2830 

 2800 - 3200 



90-110 

 180- 220 



350-450 

 500 - 700 

 37 - 163 

 170-330 

 240-523 



2S3 - 597 

 100-360 

 100-751 

 100 - 842 

 300 - 700 

 1 50 - 1 200 

 50-1130 

 100- 1 1 25 



15- 1100 



100- 1000 



70- 1000 



165-1055 



125- 1220 



40 



100 



350 

 100 

 200 

 500 



Thermal Conductivity 

 Calories per sec. per 

 deg. C. per cm. cube. 



.126 



.117 



.08S 



.069 



.068 



.064 



.058 



•49 



•55 



.64 



.76 



I.OI 



.202 

 .184 

 .191 

 1.043 

 .969 



•931 

 .902 

 .858 



•338 

 •324 

 .306 

 .291 

 .162 



maximum. 



•55 



•44 



•35 



•31 



.028 



.027 



.020 



.on 



minimum. 



45 

 34 

 26 



22 



003 

 004 

 003 

 004 



.089 

 .124 

 .129 

 .024 



.0032 to .027 

 .0027 to .0072 



.0038 



.0018 to 

 .002 to 

 .0029 to 

 .0039 to 

 .0032 to 

 .0046 to 

 .0039 to 

 .0032 to 

 •0045 to 

 .0043 to 

 .0040 



.0038 



•0033 



•0053 

 .0047 

 .0054 

 ■0057 



.0049 



■0035 



.0050 

 ,0097 



Angell, Phys. Rev. 33, p. 421, 1911; Clement, Egy, Eng. Exp. Univers. of 

 111., Bui. 36, 1909; Dewey, Progressive Age, 27, p. 772, 1909 ; Hering, Trans, 

 Am. Inst. Elect. Eng. 1910; Poole, Phil. Mag. 24, p. 45, 191 2; Wologdine, 

 Bull. Soc. Encouragement, 1 1 1, p. 879, 1909 ; Electroch. and Met. Ind. 7, pp. 

 383. 433, 1909; Woolson, Eng. News, 58, p. 166, 1907 ; heat transmission 

 by concretes. Actual values not given; Hansen, Trans. Amer. Electrochem. 

 Soc. 16, p. 329, 1909; Richards, Met. and Chem. Eng. 11, p. 575, 1913. 



'Taken from Angell's curves. 



''Values calculated from results expressed in other units. The max. and min. do not relate to 

 variability in material, but to possible errors in the method. 

 ^ Taken from Poole's curves. 



Smithsonian Tables. 



