ferrite steel
71Magnetite — Not to be confused with Magnesite or Maghemite. Magnetite Magnetite and pyrite from Piedmont Italy …
72Neodymium magnet — Nickel plated neodymium magnet on a bracket from a hard drive. Nickel plated neodymium m …
73Rawmill — A rawmill is the equipment used to grind raw materials into rawmix during the manufacture of cement. Rawmix is then fed to a cement kiln, which transforms it into clinker, which is then ground to make cement in the cement mill. The rawmilling… …
74Zinc smelting — is the process of converting zinc concentrates (ores that contain zinc) into pure zinc. The most common zinc concentrate processed is zinc sulfide,Citation | title = Compilation of Air Pollutant Emission Factors | publisher = U.S. Environmental… …
75magnetic recording — magnetic recorder. the process of recording sound or other data on magnetic tape, wire, etc. [1940 45] * * * ▪ electronics Introduction method of preserving sounds, pictures, and data in the form of electrical signals through the selective… …
76Eutectic point — The melting point of a mixture of two or more solids (such as an alloy) depends on the relative proportions of its ingredients. A eutectic or eutectic mixture is a mixture at such proportions that the melting point is as low as possible, and that …
77Cementite — or iron carbide is a chemical compound with the formula Fe3C (or Fe2C:Fe), and an orthorhombic crystal structure. It is a hard, brittle material, normally classified as a ceramic in its pure form, though it is more important in metallurgy. It… …
78Fouling — This article is about fouling in engineering. For uses of the term foul outside technology, see Foul (disambiguation). Not to be confused with fowling. Heat exchanger in a steam power plant, fouled by macro fouling …
79Nanopolymers — The word nano is derived from the Greek word for “dwarf”. It is the prefix for units of 10 9. In a nutshell, nanoscience is the study of the extremely tiny. Nanoscience is concerned with the study of the unique properties of matter at its nano… …
80pearlite — a lamellar constituent of steel consisting of alternate layers of ferrite (alpha iron) and cementite (iron Carbide Fe3C) and is formed on cooling austenite at 723 deg C. This produces a tough structure and is responsible for the mechanical… …
