Electrochemical and metallurgical industry . echaracteristic ofalloys of aboutthis etch-ing brings outthis structuremore clearly, butat the expense offlatness of field. Fifty per centferro-silicon, 34diameters, isshown in Fig. to its ex-tremely pulverulent nature it was impossible to obtain a planesurface for examination, but this figure shows its character-istic crystalline structure, and many octahedra can be distin-guished despite the unevenness of the surface and consequentlack of sharpness in the photograph. Fig. 27 shows 52 per cent ferro-silicon, 34 diamete
Electrochemical and metallurgical industry . echaracteristic ofalloys of aboutthis etch-ing brings outthis structuremore clearly, butat the expense offlatness of field. Fifty per centferro-silicon, 34diameters, isshown in Fig. to its ex-tremely pulverulent nature it was impossible to obtain a planesurface for examination, but this figure shows its character-istic crystalline structure, and many octahedra can be distin-guished despite the unevenness of the surface and consequentlack of sharpness in the photograph. Fig. 27 shows 52 per cent ferro-silicon, 34 diameters. Itpresents a rough-grained matrix, showing some octahedra andlaminae of silicon. These latter show white on the dark back-ground of the matrix. With the same magnification, 34 diameters, the 75 per centalloy possesses a very characteristic structure, as is seen inFig. 28. Numerous irregular-shaped interlocking grains ofsilicon are seen with the octahedra of the alloy between themand sometimes extending in laminae of considerable FIG. 22.—50 PER CENT FERRO-SILICON X 8. ;:( H 1 ii:mii Ai. wd mir.\ u(iic xi. INDUSlRY. [V<... III. No. 12.
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Keywords: ., bookcentury1900, bookdecade1900, booksubje, booksubjectmetallurgy
