MSE20-3: Introduction to Materials Science & Engineering Course Objective... Introduce fundamental concepts in Materials Science You will learn about: • material structure • how structure dictates properties • how processing can change structure This course will help you to: • use materials properly • realize new design opportunities with materials Chapter 1 - 1 COURSE MATERIALS (with WileyPLUS) Required text: • WileyPLUS for Materials Science and Engineering: An Introduction
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two aspects of materials behaviour that the Drude model can explain. The Drude model can explain the Thermal Conductivity in metals and Electrical Conductivity of metals. List two aspects of materials behaviour that the Drude model can’t explain but the Quantum Free Electron model can. Explains the effects of the temperature‚ impurities‚ and deformation on Electrical Conductivity in which the Drude Model can’t explain. List two aspects of materials behaviour that the Drude and QFE models
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provides two new reasons for using the material for interconnects in future computer chips. In widths as narrow as 16 nm‚ graphene has a current-carrying capacity approximately a thousand times greater than copper while providing improved thermal conductivity. The current-carrying and heat-transfer measurements were reported by a team of researchers from the Georgia Institute of Technology (Atlanta‚ GA). The same team had previously reported measurements of resistivity in graphene that suggest the material’s
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Heat Conduction along a Composite Bar Objective To study the conduction of heat along a composite bar and evaluate the overall heat transfer coefficient. Theory Thermal conduction is the mode of heat transfer which occurs in a material by virtue of a temperature gradient within it. A solid is chosen for the demonstration of pure conduction since both liquids and gasses exhibit excessive convective heat transfer. In a practical situation‚ heat conduction occurs in three detentions‚ a complexity
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large distance between atoms in a gas: fewer collisions between atoms means less conduction. Conductivity of gases increases with temperature. Conductivity increases with increasing pressure from vacuum up to a critical point that the density of the gas is such that molecules of the gas may be expected to collide with each other before they transfer heat from one surface to another. After this point conductivity increases only slightly with increasing pressure and density. Thermal contact conductance is
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heat transfer equipment. It therefor comes as no surprise that finding a way to make HTF’s more efficient is desirable in the scientific community. Research is being done to attempt to rectify this issue by adding materials with a high thermal conductivity (metal’s and metal oxides) to HTF’s in accordance with Maxwell’s heat transfer equations [1]. Until recently this problem was addressed by using micro scale solid particles with millimeter sizes which were blended into the HTF’s. Unfortunately
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MTE 271 EXAM #1 .:» Please write your name on the cover sheet I CWID#: 112’13740 C7‚ av’" """\ • .;)j.‚~e ’J nol I ‚‚-) SEE BACK 1. a) (16 pts) What are the four major types of bonds in materials and briefly describe them? S~rt. s(Xci h’t.. elu?~.s (v-t-flj o{il’Cc-h~ed) stTnvj N-t ’‚t’w r 0. toM \;Jo- VI r; +o k + I. (o\(O\ltn+ - i. 0\H1YYl.s . \t{ ~ ’L‚ J:Q’V\’‚c. - OM Ol V\ e:kc t-f’lYVI / 3. M-e-l~\l;c_.- )V\..etaJs Von ~r \o~! WC\o...\s - c..lA.C\ $~~ ’-._./ r I
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P.Jayas (PGT Chem.‚ K.V.No. 2 Chakeri) Technical Support Mr. Padam Pandey (PGT. C.S. Contractual K.V.No.2 AFS Chakeri) CONTENTS ONE PAPER UNIT NO. I II III IV V VI VII VIII IX X XI XII XIII XIV XV XVI 70 MARKS TITLE SOLID STATE SOLUTIONS ELECTROCHEMISTRY CHEMICAL KINETICS SURFACE CHEMISTRY GENERAL PRINCIPALES AND PROCESSES OF ISOLATION OF ELEMENTS P-BLOCK ELEMENTS D & F BLOCK ELEMENTS COORDINATION COMPOUNDS HALOALKANES & HALORENES ALCOHALS‚ PHENOLS & ETHERS ALDEHYDES‚ KETONES & CARBOXYLIC
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below ground level T2 20-25 oC Thermal conductivity of glass Kg 0.78 W/moC Thermal conductivity of concrete Kc 1.73 W/moC Thermal conductivity of brick Kb 1.32 W/moC Thermal conductivity of plaster Kp 8.65 W/moC Thermal conductivity of thermocol Kth 0.02 W/m2oC Thermal conductivity of aluminum Kalu 250 W/m2oC Heat Transfer Co-efficient for Glass Ug 4.59 W/m2oC Convective factor Fc 1.42 - Radiative factor Fr
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incorporated Beer’s Law and is focused on determining the stress that various alcohols have on biological membranes. Using five solutions of differing alcohol concentration for each of the three alcohols; methanol‚ ethanol‚ and 1-propanol and a small slice of beet‚ the stirred solution was placed into a plastic cuvette and then into a spectrophotometer and the absorbance of alcohol solutions were determined in order to conclude which alcohol and concentration of alcohol had the greatest effect on biological
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