Chemical engineering . aracteristic ofalloys of aboutthis etch-ing brings outthis structuremore clearly, the expense ofriatness 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 uncvenness of the surface and consequentlack of shari>css in the photograph. Fig. 27 shows 52 per cent ferro-silicon, 34 diameters. Itpresents a roug
Chemical engineering . aracteristic ofalloys of aboutthis etch-ing brings outthis structuremore clearly, the expense ofriatness 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 uncvenness of the surface and consequentlack of shari>css 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 ofMlicon are seen with the octahedra of the alloy between themand sometimes extending in laminz of considerable FIC. 22.—50 PER CENT FERRO-SILICON X 8. 1^»> FUmTK. K lllMh \I WD MRTAI-URCICAI. IXniSTRY. [V,.i III X,.. 12.
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectmetallu, bookyear1902
