Introduction to Materials Science and Engineering Chapter 1. Introduction Hyung-Joon Shin School of Mechanical and Advanced Materials Engineering Ulsan National Institute of Science and Technology (UNIST) UNIST 2011 Spring AME20201 Introduction • Course Objective: Introduce fundamental concepts in Materials Science • You will learn about: • material structure • how structure dictates properties • how processing can change structure the final grade. Please actively take part in the class
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Phosphorus Sulphur Chlorine Argon 11 39 13 70 14 73 15 40 16 79 17 80 18 84 12 45 48 51 52 55 56 59 59 64 65 75 K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr Potassium Calcium Scandium Titanium Vanadium Chromium Manganese Iron Cobalt Nickel Copper Zinc Gallium Germanium Arsenic Selenium Bromine Krypton 24 96
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Electrostatic Series and Charging by Friction Review The electrostatic series is used to determine the charge on objects charged by friction. Objects at the top of the electrostatic series have a weak hold on electrons and are electron givers. These objects lose electrons and become positively charged. Objects at the bottom of the electrostatic series have a strong hold on electrons and are electron takers. Objects at the bottom of the series gain electrons and become negatively charged. The object
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The Identification and Production of Materials 1. Fossil fuels provide both energy and raw materials such as ethylene‚ for the production of other substances. Students Learn To: .2 Identify the industrial source of ethylene from the cracking of some of the fractions from the refining of petroleum. • Ethylene is produced either from natural gas or crude oil‚ which are mixtures of hydrocarbons. One method involves… Cracking: a process by which hydrocarbons with higher molecular
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Atrazine (1-chloro-3-ethylamino-5-isopropylamino-2‚ 4‚ 6-triazine‚ CAS: 1912-24-9) was purchased from Dr. Ehrenstorfer GmbH (97.7%‚ Germany). Ethyl acetate (99.8%‚ ANPEL Scientific Instrument (Shanghai) Co.‚ Ltd.) was used as solvent for standard solutions. Acetonitrile used as HPLC eluent was purchased from ANPEL Scientific Instrument (Shanghai) Co.‚ Ltd.‚ KH2PO4·12H2O‚ K2HPO4·2H2O‚ dichloromethane and other chemical reagents used in cultivated media were purchased from Sinopharm Chemical Reagent
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HSC Chemistry Topic 1 PRODUCT ON of MATERIALS What is this topic about? To keep it as simple as possible‚ (K.I.S.S.) this topic involves the study of: 1. POLYMERS FROM PETROCHEMICALS & BIOMASS 2. ALTERNATIVE FUELS - ETHANOL & THE ALKANOLS 3. REDOX CHEMISTRY & BATTERIES 4. RADIOACTIVITY & ITS USES ...all in the context of society’s use of energy and materials but first) an introduction ... In the previous topic in the Preliminary Course‚ you learnt about carbon chemistry of petroleum Then you
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Name |Color |Odor |Effect of Heat |Cold H2O |Hot H2O |Litmus Test |Dilute HCl |Dilute NaOH | |Mg |Silver |None |No Change |Floated/ not soluble |slight bubbles |Basic | Got hot and fizzy |No Change | |Cu |Copper |None |turned black |not soluble |No Change |No Change |No Change |No Change | |Zn |Silver |None |No Change |not soluble |No Change |No Change |omitted vapors and was fizzy |No Change | |MgO |White |None |Omitted gas |turned to a milky paste |Behaved violently when boiled |Basic |Got hot
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after Accumulative Roll Bonding 11 III.5. Mechanical Properties after Accumulative Roll Bonding 13 III.5.1. Strength and ductility 13 III.5.2. Hardness 15 III.6. Applications of Accumulative Roll Bonding Process 16 III.6.1. Manufacturing of a Cu/Al2O3 composite 16 III.6.2. Manufacturing of nanostructure Al/SiCp Composite 17 IV. Conclusion 18 References 19 I. Introduction Research in severe plastic deformation (SPD) processes has increased a great deal over the last ten to fifteen
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CHemistry project ..... CHEMISTRY INVESTIGATORY PROJECT TOPIC: RAYON FIBRE BY:- VIKRAM RAO XII – B OBJECTIVE OF THE PROJECT This project is aimed at preparation of rayon thread from filter paper employing cuprammonium process INTRODUCTION Rayon is the oldest commercial manmade fiber. The U. S. Trade Commission
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DIVISION OF CHEMISTRY :MODULE: GENERAL CHEMISTRY (CHY2021) TUTORIAL # 2 DATE: September 2013 1. Define the following terms: mass number‚ atomic number and the atomic mass unit (amu). 2. With the help of The Periodic Table‚ complete the table below. Symbol Atomic # Proton # Neutron # # of Electrons Mass Number Charge Ar 19 31 17 18 35 20 18 3+ 40 3. In your own words‚ explain Thomson’s and Rutherford’s contribution to the atomic theory. Give sketches to substantiate your answer. 4. Explain
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