main parts of an electric motor. The carbon contacts are made of graphite. Springs push the contacts against the copper ring. The contacts conduct electricity to the copper ring. The copper ring rotates rapidly but does not stick or become worn because the graphite is soft and slippery. Graphite has properties which are ideal for making the contacts in an electric motor. Explain‚ in terms of structure and bonding‚ why graphite has these properties. ..........................................
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volcanic origin. Since then scientists have found ways to make diamond from graphite and other synthetic materials. Diamonds of true gem quality are not made in this way . Graphite is another form of carbon. It occurs as a mineral in nature‚ but it can be made artificially from amorphous carbon. One of the main uses for graphite is for its lubricating qualities. Another is for the "lead" in pencils. Graphite is used as a heat resistant material and an electricity conductor. Amorphous
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Common materials used for engine blocks include Grey Cast Iron‚ aluminum and Compacted Graphite Iron (CGI). In the early years of building engine blocks‚ grey cast iron was the only material used. The process of using alloys was non-existent and aluminum was a new material which few people were familiar with. At the time‚ however‚ grey cast iron worked very well. The carbon‚ present as flakes of graphite‚ in grey cast iron gives the material good resistance to wear and also provides good corrosion
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Executive Summary American Chemical Corporation’s Collinsville plant in Alabama is being sought by Dixon a speciality chemicals company. This plant mainly specialises in Sodium Chlorate production and fits well with Dixon’s strategy of supplying chemicals to paper and pulp industry. It would also complement Dixon’s existing product line. The plant costs $12million in investment and requires up to$ 2.25 million for upgrading to new technology. An in-depth investigation and analysis is conducted
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pearlite‚ in grains of cementite‚ or in scattered small particles of carbide. In cast iron‚ most of the carbon is usually present in uncombined form‚ as graphite. (Graphite is one of the two crystalline forms of carbon; diamond is the other). The differences between the general types of cast iron most widely used arise chiefly from the form which the graphite assumes in the finished iron. Gray Iron. Of the general types of cast iron‚ gray iron is by far the most widely used. The term ”gray iron” was adopted
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conductive concrete with both superior electrical conductivity and mechanical properties. Electrically conductive concrete is a functional composite that is composed of regular concrete and a certain amount of electrically conductive components like graphite‚ carbon fibers etc. Adding appropriate electrically conductive components into concrete can improve the electrical conductivity greatly and it becomes a good conductor. When connected to an outer power source‚ heat is generated in an electrically
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progress of being built. Events Leading to the Accident Reactor 4 was to be shutdown for routine maintenance on April 25‚1986. Reactor 4 was a RBMK (an acronym derived from the Russian initials for heterogeneous‚ water-graphite channeltype reactor)‚ which uses graphite as a "moderator‚" i.e.‚ to slow down neutrons and thereby sustain the nuclear chain reaction. Events Leading to the Accident Saturday April 26‚ 1986 During the shutdown a test was to be run to see if the slowing turbine
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CHAPTER VIII SOCIOECONOMIC DESIRABILITY The objective of every business is to earn profit. However‚ the proposed business is sensitive to corporate social responsibility. This is concerned with the continued growth and improvement of the different parts of the community. Below are the following beneficiaries when the proposed business is executed: ENVIRONMENT In the implementation of this project‚ the environment would be one of the beneficiaries. In using recycled papers as the outer layer
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photography from documentary‚ through portraiture to still life‚ with a particular focus in more recent years on tulips as symbols of sensuality and elegance. Blakemore is celebrated for the detail‚ texture and tonal richness of his work Sandra blazell- graphite and acrylics Matisse started to create large scale cut paper collages. He called the technique ‘painting with scissors’. Peter Kozlov is a very skilful painter that creates colourful pictures that look like a photograpy. He paints with oil and
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certain you are in your identification. Finally‚ explain your percentage of certainty: What was confusing about this mineral? What other minerals do you think it could be? Remember‚ the minerals include seven of the following: borax‚ calcite‚ corundum‚ graphite‚ gypsum‚ orthoclase feldspar‚ pyrite‚ quartz‚ talc‚ and topaz. Identification of Mineral Percent Certain Explanation of Certainty Example: Fluorite 80% certain I am almost certain this mineral is fluorite‚ but I am not completely sure. Fluorite
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