Mineral Foote-Notes Volume 2-3

Mineral Foote-Notes Volume 2-3

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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. 1918 edition. Excerpt: ...brown in prints. Iron and Steel Industry In the above applications of the metal uranium it has always been either the oxides or the salts that have been made use of. The metal itself has been used, as far as I know, in but two forms. Firstly, as ferro-uranium and secondly, as uranium carbide. Ferro-uranium is manufactured to a certain extent and is, of course, used to impart special properties to steel, with which it is alloyed, sometimes with tungsten, sometimes alone. It is said to impart toughness and hardness to the steel and is on this account used in the manufacture of tools. At the present time it undoubtedly enjoys a fair and increasing use in the steel industry, either alone or in conjunction with ferro-tungsten, such use being more extended in the United States, France and Italy than in Great Britain. It is difficult to gain exact information on such a point as this; for firms experimenting with a new alloy very naturally like to keep their results to themselves. Further, the high price of the material as yet acts as a deterrent to its wide application. In regard to the second use mentioned above, uranium carbide when struck against a piece of the same material emits a shower of bright sparks. Use has been made of this fact in the manufacture to a very limited extent of automatic lighters. A second application of uranium carbide is as a catalyst in the production of ammonia from its elements nitrogen and hydrogen. These gases are passed over the catalyst heated to 600 degrees C. under 100 atmospheres; under these conditions 3 per cent. of the mixed gases combine to form ammonia. The method is due to Haber and Greenwood in 1915, and it is said that it is being worked on a commercial scale in Germany. It has, however, two great...show more

Product details

  • Paperback | 62 pages
  • 189 x 246 x 3mm | 127g
  • Rarebooksclub.com
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236598660
  • 9781236598660