chromium-rich alloy
31titanium processing — Introduction preparation of the ore for use in various products. Titanium (Ti) is a soft, ductile, silvery gray metal with a melting point of 1,675° C (3,047° F). Owing to the formation on its surface of an oxide film that is… …
32Iridium — (pronEng|ɪˈrɪdiəm) is a chemical element that has the symbol Ir and atomic number 77. A very hard, brittle, silvery white transition metal of the platinum family, iridium is the second densest element and is the most corrosion resistant metal,… …
33Westinghouse Time Capsules — Westinghouse s 1964 1965 World s Fair time capsule exhibit …
34niobium processing — Introduction preparation of the ore for use in various products. Niobium (Nb) has a body centred cubic (bcc) crystal structure and a melting point of 2,468° C (4,474° F). Of the refractory metals, it has the lowest density and best… …
35Copper in health — Normal absorption and distribution of copper. Cu = copper, CP = ceruloplasmin, green = ATP7B carrying copper. Copper is an essential trace element that is vital to the health of all living things (humans, plants, animals, and microorganisms). In… …
36chemical element — Introduction also called element, any substance that cannot be decomposed into simpler substances by ordinary chemical processes. Elements are the fundamental materials of which all matter is composed. This article considers the… …
37Osmium — This article is about the chemical element. For other uses, see Osmium (disambiguation). rhenium ← osmium → iridium Ru ↑ Os ↓ Hs …
38Mining in Iran — Industry and Mining from U.S. Central Intelligence Agency map of Iran 1978. Mining in Iran is under developed. Yet the country is one of the most important mineral producers in the world, ranked among 15 major mineral rich countries,[1] holding… …
39Gold — This article is about the metal. For the color, see Gold (color). For other uses, see Gold (disambiguation). platinum ← gold → mercury …
40Silicon — Not to be confused with the silicon containing synthetic polymer silicone. aluminium ← silicon → phosphorus C ↑ Si ↓ Ge …
