Detail of "7440-20-2"

Reference

Petrogenesis of the Bosworgey granitic cusp in the SW England tin province and its implications for ore mineral genesis

Petrogenesis of the Bosworgey granitic cusp in the SW England tin province and its implications for ore mineral genesis. Ball, T. K.; Basham, I. R. (Inst. Geol. Sci., Nottingham, UK). Miner. Deposita, 19(1), 70-7 (English) 1984. CODEN: MIDEBE. ISSN: 0026-4598. DOCUMENT TYPE: Journal CA Section: 53 (Mineralogical and Geological Chemistry) The Bosworgey granite cusp forms an apical portion of the concealed northern extension of the Tregonning-Godolphin granite ridge. It is characterized by unusually high concns. of B, P, Mn, Fe, As, Cu, Nb, Ta, Bi, Sn, W, U, and S (present largely as tourmaline, apatite, pyrite, arsenopyrite, chalcopyrite, native Bi, columbite, casiterite, wolframite, and uraninite) and low levels of Zr, Hf, Ti, and rare earths in zircon, ilmenite, and monazite. The granite is classified as Sn- and W-specialized (as defined by G. Tischendorf, 1974) and belongs to ilmenite series. The classification proposed by B. W. Chappell and A. 7440-20-2 and 7440-29-1 which are cas registry numbers of chemicals are mentioned. J. R. White (1974) is inapplicable to Cornubian rocks. The accessory mineral assemblages are typical of high-temp. lodes (cassiterite, wolframite, arsenopyrite, chalcopyrite) and the assemblage is the cusp analog of hypothermal lodes produced by extreme differentiation and concn. of volatiles. Such granites could provide the parent material for mesothermal crosscourse mineralization (pitchblende, native Bi, pyrite, galena, sphalerite). .

Precipitation hardening austenitic superalloys

Precipitation hardening austenitic superalloys. Korenko, Michael Karl (Westinghouse Electric Corp. , USA). Eur. Pat. Appl. EP 92623 A1 2 Nov 1983, 14 pp. DESIGNATED STATES: R: BE, DE, FR, GB, IT, SE. (English). (European Patent Organization). CODEN: EPXXDW. CLASS: IC: C22C038-50; C22C038-40; C22C019-05; G21C003-06. APPLICATION: EP 82-306828 21 Dec 1982. PRIORITY: US 82-370438 21 Apr 1982. DOCUMENT TYPE: Patent CA Section: 55 (Ferrous Metals and Alloys) Section cross-reference(s): 71 g'-Hardening austenitic Fe superalloys for encapsulating of nuclear fuel elements are given. The alloys contain 0.5-1.5 Si and 0.05-0.5% ductility-enhancing agent of Y, Hf, Sc, and/or La.Several substances with their cas registry numbers 88120-58-5 and 7440-20-2 may be metioned in this study. When Hf or Y are used, decreases in neutron irradn.-induced swelling are obtained. A typical Fe alloy [88120-58-5] contains Ni 25.04, Cr 7.57, Mo 1.02, Si 0.96, Mn 0.21, Zr 0.056, Ti 3.2, Al 1.59, C 0.056, and Hf 0.35%. .