Transactions of the American Ceramic Society, Containing the Papers and Discussions Volume 8

Transactions of the American Ceramic Society, Containing the Papers and Discussions Volume 8

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1906 edition. Excerpt: ...figured as U3O8 with a molecular weight of 848. The Glazes Used. The trials were made up of pure glazes, and the uranium, figured as U3O8, was added in the following amounts: .003, .066, .01, .02, .05 equivalents. These calculated as Na2O, U2O, 6H2O, would be.0034, .0068, .0114, .0225, and.0570, which again would amount to.00256, .00513, .00856, .01712, .04280 parts of U2O . The following table shows the complete chemical composition, composition of fritt, combining weight, etc.: 11 Weight of uranium oxide added to 100 gr. of dry glaze. The above table shows what the different equivalents of U3O8 would be, expressed as Na2O U2O, 6H2O when a definite weight of the material is used. Mechanical Preparation. All fritts were fused in Hessian crucibles in a small furnace until complete solution was obtained. While still in this molten state, they were poured in a thin stream into cold water to shatter the glassy mass as much as possible. One kilogram of each glaze was weighed out, put into a 12" ball mill and thoroughly ground for about three hours. All glazes were then passed through a 120 mesh sieve and evaporated to dryness. When perfectly dry, the charges were passed through a 20 mesh sieve to get rid of all lumps, and thoroughly mixed up to secure the best possible homogeneity. Then six one hundred gram samples of each glaze were weighed out. To these samples, the proper amount of uranium was added as shown in the table. The glazes were all weighed on torsion balances, sensible to.1 gram. The uranium was weighed on a more delicate balance, being sensible to.02 grams, so that there was very little chance for error. The uranium was previously ground and heated to 120 C. in order to dry it and then passed through a 120 meshow more

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  • Paperback
  • 189 x 246 x 6mm | 213g
  • Rarebooksclub.com
  • English
  • Illustrations, black and white
  • 1236946987
  • 9781236946980