Table 239. 

 LINEAR EXPANSION OF MISCELLANEOUS SUBSTANCES. 



219 



The coefficient of cubical expansion may be taken as three times the linear coefficient. / is the temperature or range 

 of temperature, C the coefficient of expansion, and A. the authority. 



Substance. 



Brass: 

 Cast. 

 Wire. 



71. S Cu+ 27.7 Zn + 

 0.3 Sn + sPb.. . 



71 Cu + 29 Zn 



Bronze: 

 3 Cu+ I Sn 



86.3 Cu + 9.7 Sn + 

 4 Zn 



97.6 Cu + 

 2.2 Sn + 

 0.2 P 

 Caoutchouc. 



/hard 

 \soft 



Constantan , 



Ebonite 



Fluorspar: CaFj... 



German silver 



Gold-platinum: 



2 Au + iPt 



Gold-copper: 



2 Au + I Cu , 



Glass: 



Tube 



Plate 



Crown (mean) . 



Flint 



Jena ther-l 16^^" \ 

 mometer I normal I 



59™.... 



Gutta percha 



Ice 



Iceland spar: 



Parallel to axis 



Perpendicular to axis 

 Lead-tin (solder) 



2Pb4- I Sn 



Magnalium 



Manganin 



Marble 



Paraffin 



Platinum-iridium 

 loPt-H I Ir 



40 

 o-ioo 



16.6-100 



16.6-350 



I6.6-9S7 



40 



0-80 



16.7-25.3 



4-29 



25.3-35.4 



o-ioo 



50-60 



- 191 to-t- 16 



20 

 — 20 to — I 



0-80 



O-IOO 



12-39 



15-100 

 0-16 

 16-3S 

 38-49 



40 



CX 10* 



0.1875 



0.1930 



.1783-. 193 



0,1859 

 o. 1906 



0.1844 



0.2116 



0.1737 

 0.1782 



0.1713 

 o. 1708 



0.657-0.686 

 0.770 

 0.1523 

 0.842 

 0.1950 

 0.1836 



0.1552 



0.0833 

 0.0828 

 0.0891 

 0.0897 

 0.0954 

 0.0788 



0.081 



0.058 

 0.424 

 1.983 

 0.51 



o. 2631 



0.0544 

 o. 2508 



0.238 

 0.I8I 



o. 117 

 1.0662 

 I ■ 3030 

 4.7707 



0.0884 



Substance. 



Platinum -silver: 

 I Pt -f 2Ag 



Porcelain 



Bayeux. 



Quartz: 

 Parallel to axis . . 



Perpend, to axis . . 

 Quartz glass 



Rock salt 



Rubber, hard. 



Speculum metal. 

 Topaz; 

 Parallel to lesser 



horizontal axis 

 Parallel to greater 



horizontal axis. 

 Parallel to vertical 



axis 



Tourmaline: 

 Parallel to longi- 

 tudinal axis 



Parallel to horizon- 

 tal axis 



Type metal 



Vulcanite 



Wedgwood ware. . . 

 Wood: 



Parallel to fiber: 



Ash 



Beech 



Chestnut 



Elm 



Mahogany 



Maple 



Oak 



Pine 



Walnut 



Across the fiber: 



Beech 



Chestnut 



Elm 



Mahogany 



Maple 



Oak 



Pine. .■ 



Walnut 



Wax: White 



o-ioo 



20-7 go 



1000-1400 



0-80 

 -190 to + 16 



0-80 



-190 to-f i6 



16 to iOO 



16-1000 



40 



0° 



— 160 



O-IOO 



16.6-254 

 0-18 



O-IOO 



CX io4 



10-26 

 26-31 

 31-43 

 43-57 



0.1523 

 0.0413 

 0.05S3 



0.0797 

 0.0521 

 0.1337 

 -o 0026 

 0.0057 

 0.0058 

 0.4040 

 0.691 

 0.300 

 0.1933 



0.0832 

 0.0836 

 C.0472 



0.0937 



0.0773 

 0.1952 

 0.6360 

 o . 0890 



0.0951 



0.0257 

 0.0649 



0.0565 

 0.0361 

 0.0638 

 0.0492 

 0.0541 

 0.0658 



0.614 



0.32s 



0.443 



0.404 

 0.484 

 O.S44 

 0.341 

 0.484 

 2.300 

 3.120 

 4.860 

 15.227 



References: 



(i) Smeaton. 



(2) Various. 



(3) Fizeau. 



(4) Matthiessen. 



(5) Daniell. 



(6) Benoit. 



(7) Kohlrausch. 



(8) Pfaff. 



(9) Deluc. 



(10) Lavoisier and Laplace. 



(11) Pulfrich. 



(12) Schott. 



(13) Henning. 



(14) Russner. 



(15) Mean. 



(16) Stadthagen. 



(17) Frohlich. 

 (iS) Rodwell. 



(19) Braun. 



(20) Deville and Troost. 



(21) Scheel. 



(22) Mayer. 



(23) Glatzel. 



(24) Villari. 



(25) Kopp. 



(26) Randall. 



(27) Dorsey. 



Smithsonian Tables. 



