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coating getter

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  • Getter — 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… …   Wikipedia

  • Non-Evaporable Getter — (NEG) is a powder of an Al Zr alloy that readily forms stable compounds with active gases. Sintered onto the inner surface of high vacuum vessels, it acts as a getter or getter pump that is able to reduce the pressure to less than 10−9 Torr. The… …   Wikipedia

  • Vacuum tube — This article is about the electronic device. For experiments in an evacuated pipe, see free fall. For the transport system, see pneumatic tube. Modern vacuum tubes, mostly miniature style In electronics, a vacuum tube, electron tube (in North… …   Wikipedia

  • Vacuum pump — A vacuum pump is a device that removes gas molecules from a sealed volume in order to leave behind a partial vacuum. The vacuum pump was invented in 1650 by Otto von Guericke. Types Pumps can be broadly categorized according to three… …   Wikipedia

  • Super Robot Wars — nihongo| Super Robot Wars |スーパーロボット大戦| Sūpā Robotto Taisen|or Super Robot Taisen, abbreviated as SRW is a series of tactical role playing video games produced by the Japanese gaming company, Banpresto, a division of Bandai, for various video game …   Wikipedia

  • Glowing plate — When a vacuum tube circuit malfunctions and draws excessive current, the anode ( plate ) may overheat, sometimes causing a visible red or orange glow. In consumer electronics, this is universally indicative that the tube is experiencing an… …   Wikipedia

  • Caesium — xenon ← caesium → barium Rb ↑ Cs ↓ Fr …   Wikipedia

  • Transmission electron microscopy — A TEM image of the polio virus. The polio virus is 30 nm in size.[1] Transmission electron microscopy (TEM) is a microscopy technique whereby a beam of electrons is transmitted through an ultra thin specimen, interacting with the specimen as it… …   Wikipedia

  • Barium — (pronEng|ˈbɛəriəm) is a chemical element. It has the symbol Ba, and atomic number 56. Barium is a soft silvery metallic alkaline earth metal. It is never found in nature in its pure form due to its reactivity with air. Its oxide is historically… …   Wikipedia

  • Oxide — Oxides, such as iron(III) oxide or rust, which consists of hydrated iron(III) oxides Fe2O3·nH2O and iron(III) oxide hydroxide (FeO(OH), Fe(OH)3), form when oxygen combines with other elements An oxide ( …   Wikipedia

  • Zirconium — (pronEng|zɚˈkoʊniəm, IPA|/ˌzɝˈkoʊniəm/) is a chemical element with the symbol Zr and atomic number 40. It is a lustrous, gray white, strong transition metal that resembles titanium. Zirconium is used as an alloying agent due to its high… …   Wikipedia

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