what are the different classes of materials?
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Traditionally the three major classes of materials are metals, polymers, and ceramics. Examples of these are steel, cloth, and pottery. These classes usually have quite different sources, characteristics, and applications.
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['Explosive and incendiary materials.', 'Flammable items.', 'Gasses and pressure containers.', 'Matches.', 'Oxidizers and organic peroxides.', 'Poisons.', 'Infectious materials.', 'Corrosives.']
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['Category 1 – Pre-Manufacturing - 3D primary structural systems.', 'Category 2 – Pre-Manufacturing - 2D primary structural systems.', 'Category 3 – Pre-Manufacturing - Non systemised structural components.', 'Category 4 – Pre-Manufacturing - Additive Manufacturing.']
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['Reinforced concrete and masonry.', 'Composite wood such as plywood.', 'Reinforced plastics, such as fibre-reinforced polymer or fiberglass.', 'Ceramic matrix composites (composite ceramic and metal matrices)', 'Metal matrix composites.', 'and other Advanced composite materials.']
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There are three main types of metals ferrous metals, non ferrous metals and alloys. Ferrous metals are metals that consist mostly of iron and small amounts of other elements.
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['Alkali metals.', 'Alkaline earth metals.', 'Transition metals.', 'Halogens.', 'Noble gases.']
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['Diamagnetism.', 'Paramagnetism.', 'Ferromagnetism.', 'Ferrimagnetism.', 'Antiferromagnetism.', 'Magnetic Properties of some common minerals.']
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['Bulk density.', 'Porosity.', 'Durability.', 'Density.', 'Density index.', 'Specific gravity.', 'Fire resistance.', 'Frost resistance.']
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1 Answer. The three main classes of elements are metals on the left side, metalloids on the staircase, and nonmetals on the right hand side.
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['Fiberglass.', 'Mineral wool.', 'Cellulose.', 'Natural fibers.', 'Polystyrene.', 'Polyisocyanurate.', 'Polyurethane.', 'Vermiculite and perlite.']
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Elements in different groups are lumped together in one of three classes, depending on their properties. The classes are metals, nonmetals, and metalloids. Knowing the class of an element lets you predict many of its properties.
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['A bottom foundation layer, often of stone.', 'A middle layer of softer material such as sand or gravel.', 'A surface, or "metalling," usually a gravel, but sometimes paving stones.']
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['A. Density. The amount or mass of a material in a given volume is the density of the material. ... ', 'B. Boiling and Melting Points. ... ', 'C. Vapor Pressure. ... ', 'D. Thermal Conductivity. ... ', 'E. Heat Capacity. ... ', 'F. Heat of Fusion and Vaporization. ... ', 'G. Coefficient of Thermal Expansion. ... ', 'H. Electrical Conductivity.']
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['Wood.', 'Cement and concrete.', 'Bitumen and bituminous materials.', 'Structural clay and concrete units.', 'Reinforcing and structural steels.']
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['CLASSES. SYMBOLS. SUBCLASSES. Class I - ... ', 'Class II - Clothing, Individual. Equipment, ... ', 'Class III - Petroleum, Oils, Lubricants. ... ', 'W - POL for Surface. Vehicles. P - Packaged POL.', 'Class IV - Construction. Materials. A - Construction.', 'B - Barrier. Class V - Ammunition. ... ', 'Class VI - Personal. Demand. ... ', 'Class VIII - Medical. Materials.']
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Thermoset Plastics vs Thermoplastics. When classified by chemical structure, there are two generally recognized classes of plastic materials: Thermosets, having cross-linked molecular chains, and Thermoplastics, which are made up of linear molecular chains. Thermoset polymers require a two-stage polymerization process.
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['Fibrous connective tissue.', 'Classification of fibrous connective tissue.', 'Areolar tissue.', 'Reticular tissue.', 'Adipose Tissue.', 'Dense regular connective tissue.', 'Dense irregular connective tissue.']