In this periodic table, All the metals are listed on the left side and the non-metals are listed on the right side of the table. The periodic table is a tabulation of the chemical elements according to their atomic number and electron configuration. Follow this tree diagram to understand the subclassification of materials.Before going into the topic it is necessary to understand the periodic table.
These metals don’t have the iron as the composition. Non-Ferrous MetalsThese metals have lightweight, high conductivity, corrosion resistance and non-magnetic properties are the specialities of non-ferrous metals. Ferrous metals are magnetic and capable of little resistance to the corrosion too.Examples for ferrous metals are cast iron, carbon steels, alloy steels, stainless steels, tool steels and die steels. Iron such as cast iron wrought iron, steel is the main constituents in ferrous metals. These are all alloys of metals.Metals are further classified into the following groups.Ferrous metals are rich in iron. In periodic table out of 118 elements, 90 are metals only. See the periodic table for the metals.Examples of metals are steel, iron, copper, aluminium, zinc, silver, lead, etc.
In the periodic table, they are represented under Polyatomic nonmetal, Diatomic non-metal, Noble gases. carbon, phosphorus, sulfur, selenium, and iodine are the solid non-metals. Most of the non-metals are gasses. Non-metalsNon-Metal is referred to the chemical elements which are volatile, insulated to heat and electricity and lack of the metallic attributes.
So these are not able to recycle. Once thermosets get harden they will not be remoulded or reshaped. ThermosetsThese are the polymers which are capable to resist to high temperatures. So they are recyclable polymers. These thermoplastics can be remoulded or reshaped many times as we want.
Following examples gives the quick idea of ceramic materials.Examples of Ceramics are plates, tiles, toilets. Ceramics have high strengths and hardness properties. CeramicsCeramics are the inorganic and nonmetallic compounds. Simply a polymer which is having an elastic property called as the elastomer. ElastomersThe elastomer is a polymer that can be deformed under stress and regain its original shape when the stress is removed.
Plywood is a composite material from a composite of different wood materials. Composite MaterialsA composite material is a material formed from two or more materials to attain required properties like high strength with light in weight.Example of the composite material is a plywood. One special property of the glasses is the transparency. Glasses don’t have the crystalline structure as like Crystalline ceramics do. GlassesGlasses are also inorganic and non-metallic compounds. They tend to fail at very less stress.
After the classification of materials, we should focus on the selection of engineering materials for the machine members based on the type of function and many other factors. ConclusionIn the machine design subject, we will deal with the most of metals only.
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