anode corrosion
61Spa bath — Note that the term spa bath can also refer to a spa or hot tub. A spa bath basin of water having a temperature of up to 45 degrees Celsius (#expr: 45 *9/5+32 Fahrenheit), containing salts, herbal extracts or herbal oils, in which the hands, feet… …
62battery — /bat euh ree/, n., pl. batteries. 1. Elect. a. Also called galvanic battery, voltaic battery. a combination of two or more cells electrically connected to work together to produce electric energy. b. cell (def. 7a). 2. any large group or series… …
63Battery — /bat euh ree/, n. The, a park at the S end of Manhattan, in New York City. Also called Battery Park. * * * Any of a class of devices, consisting of a group of electrochemical cells (see electrochemistry), that convert chemical energy into… …
64Sodium–sulfur battery — Cut away schematic diagram of a sodium–sulfur battery. (image courtesy NASA John Glenn Research Center). A sodium–sulfur battery or liquid metal battery is a type of molten metal battery[1] constructed from sodium (Na) and sulfur ( …
65Hydrogen — This article is about the chemistry of hydrogen. For the physics of atomic hydrogen, see Hydrogen atom. For other meanings, see Hydrogen (disambiguation). ← hydrogen → helium …
66Iron pillar of Delhi — For other uses, see Ashoka Pillar (disambiguation). The iron pillar of Delhi The iron pillar of Delhi, India, is a 7 m (23 ft) high pillar in the Qutb complex, notable for the composition of the metals used in its construction. The… …
67Anodisation dure — L anodisation dure est une technique d anodisation de l aluminium qui permet d obtenir une couche passivante d alumine de grande épaisseur (de l ordre de 100 µm). Principe de l anodisation L aluminium présente à l état naturel une couche d… …
68magnesium processing — Introduction preparation of the ore for use in various products. Magnesium (Mg) is a silvery white metal that is similar in appearance to aluminum but weighs one third less. With a density of only 1.738 grams per cubic centimetre, it… …
69FER — Le fer est l’élément chimique métallique de numéro atomique 26, de symbole Fe. Dans la classification périodique, il se place dans la première série de transition entre le manganèse et le cobalt. Ses propriétés chimiques sont voisines de celles… …
70MÉTALLOGRAPHIE - Essais physico-chimiques — En métallurgie, les essais physico chimiques visent à étudier, grâce à l’application des lois physiques, les propriétés physico chimiques d’un matériau métallique dans des conditions données de milieu et de température. Ces essais présentent un… …
