This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1908 Excerpt: ...researches of Shepherd,2 who drew up a complete freezing-point curve, brought further elucidation. These fully confirmed the conjecture concerning the existence of mixed crystals in the series, but not of compounds of definite chemical composition. In Fig. 88 the line ABCDEFG gives the temperature of the commencement ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1908 Excerpt: ...researches of Shepherd,2 who drew up a complete freezing-point curve, brought further elucidation. These fully confirmed the conjecture concerning the existence of mixed crystals in the series, but not of compounds of definite chemical composition. In Fig. 88 the line ABCDEFG gives the temperature of the commencement of freezing, which is completed along the line AbbcCdtffF. As in the case of the freezing of the coppertin series (see p. 111), various crystal-types of solid solutions are formed, which will be designated a, ft, y, S, e, -), and of which the domain of existence is limited. As is apparent from the freezing-point curve, the phenomena of crystallization are merely a manifold repetition of Roozeboom's freezing-type IV, which' was more particularly explained on p. 40. Upon the line AB there begin to separate out a-mixed crystals of copper and zinc, the composition of which is given by the line Ab%. Within the region ABb% a-mixed crystals and fluid melt exist side by side. After complete freezing according to Ab%, the whole mass consists of homogeneous mixed crystals a, the zinc contents of which lie between o and the abscissa of b Melts whose zinc content is higher than $2 separate out a-crystals 1 Le Chatelier, "La technique de la mdtallographie microscopique." Contribution 'a I'etude des alliages, 1901, p. 439. Paris, Chamerot et Renouard.-S. Shepherd, Journal of Physical Chemistry, VIII., 1904, pp. 421434' at first. When the temperature bjB is reached, the still fluid mass freezes to a conglomerate of a-and /3-crystals. The latter, which were designated "limit-crystals" on p. 41, can undergo still further change below this temperature. An alloy with 33 per cent. of zinc, for instance, begins to precipitate at the temper...
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Add this copy of Introduction to Metallography to cart. $18.00, new condition, Sold by Ingram Customer Returns Center rated 5.0 out of 5 stars, ships from NV, USA, published 2022 by Legare Street Press.
Add this copy of Introduction to Metallography to cart. $28.30, new condition, Sold by Ingram Customer Returns Center rated 5.0 out of 5 stars, ships from NV, USA, published 2022 by Legare Street Press.
