vacuum alloy
41Getter — Getters are reactive materials used for removing traces of gas from vacuum systems. Flashed getters are prepared by arranging a reservoir of a volatile and reactive material inside the vacuum system; once the system is sealed, the material is… …
42Organ pipe — The choir division of the organ at St. Raphael s Cathedral, Dubuque, Iowa. Wood and metal pipes of a variety of sizes are shown in this photograph. An organ pipe is a sound producing element of the pipe organ that resonates at a specific pitch… …
43Ares I — This article is about the Ares I launch vehicle. For other uses, see Ares (disambiguation). Ares I Artist s impression of Ares I launch Function man rated orbital launch vehicle Manufacturer Allian …
44Business and Industry Review — ▪ 1999 Introduction Overview Annual Average Rates of Growth of Manufacturing Output, 1980 97, Table Pattern of Output, 1994 97, Table Index Numbers of Production, Employment, and Productivity in Manufacturing Industries, Table (For Annual… …
45radiation — radiational, adj. /ray dee ay sheuhn/, n. 1. Physics. a. the process in which energy is emitted as particles or waves. b. the complete process in which energy is emitted by one body, transmitted through an intervening medium or space, and… …
46surface analysis — ▪ chemistry Introduction in analytical chemistry (chemistry), the study of that part of a solid that is in contact with a gas or a vacuum. When two phases of matter are in contact, they form an interface. The term surface is usually… …
47Aluminium — Infobox aluminiumAluminium (Audio IPA|En uk aluminium1.ogg|ˌæljʊˈmɪniəm, IPA|/ˌæljəˈmɪniəm/) or aluminum (Audio IPA|En uk aluminum.ogg|/əˈluːmɪnəm/, see spelling below) is a silvery white and ductile member of the boron group of chemical elements …
48Autoclave — For other uses, see Autoclave (disambiguation). Square Section Autoclave A modern front loading autoclave Uses Sterilization Inventor Charles Chamberland Manufacturer Astell Scientific …
49Titanium powder — metallurgy (P/M) offers the possibility of creating net shape or near net shape parts without the material loss and cost associated with having to machine intricate components from wrought billet. Powders can be produced by the Blended Elemental… …
50Copper indium gallium selenide solar cells — Copper indium gallium selenide (CuIn1 xGaxSe2 or CIGS) is a direct bandgap semiconductor useful for the manufacture of solar cells. Because the material strongly absorbs sunlight, a much thinner film is required than of other semiconductor… …
