metallurgical properties
91Sulfuric acid — Sulfuric acid …
92Carbon dioxide — Carbon dioxide …
93Plasma (physics) — For other uses, see Plasma. Plasma lamp, illustrating some of the more complex phenomena of a plasma, including filamentation. The colors are a result of relaxation of electrons in excited states to lower energy states after they have recombined… …
94Liste des milliardaires du monde en 2008 — Liste des milliardaires du monde 1991 ... 2004 . 2005 . 2006 . 2007 . 2008 . 2009 . 2010 . 2011 Ceci est la liste des milliardaires du monde telle que publiée par le magazine américain Forbes pour l année …
95Germany — /jerr meuh nee/, n. a republic in central Europe: after World War II divided into four zones, British, French, U.S., and Soviet, and in 1949 into East Germany and West Germany; East and West Germany were reunited in 1990. 84,068,216; 137,852 sq.… …
96boron group element — ▪ chemical elements Introduction any of the five chemical elements constituting Group 13 (IIIa) of the periodic (periodic law) table (see Figure >). The elements are boron (B), aluminum (Al), gallium (Ga), indium (In), an …
97lead processing — Introduction preparation of the ore for use in various products. Lead (Pb) is one of the oldest metals known, being one of seven metals used in the ancient world (the others are gold, silver, copper, iron, tin, and mercury). Its low… …
98Steel — For other uses, see Steel (disambiguation). The steel cable of a colliery winding tower …
99Coal assay — Coal Analysis techniques are specific analytical methods designed to measure the particular physical and chemical properties of coals. These methods are used primarily to determine the suitability of coal for coking, power generation or for iron… …
100Plasma electrolytic oxidation — (PEO), also known as microarc oxidation (MAO), is an electrochemical surface treatment process for generating oxide coatings on metals. It is similar to anodizing, but it employs higher potentials, so that discharges[1] occur and the resulting… …
