ch01-Materials Introduction

ch01-Materials Introduction - CHEN 313: Materials Science...

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Chapter 1- CHEN 313: Materials Science and Engineering Course Objective. .. 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 Notes adapted by Jorge Seminario (TAMU) a
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Chapter 1- Fundamentals of Materials Science and Engineering: An Integrated Approach 3rd Edition W.D. Callister, Jr. and D. G. Rethwisch John Wiley and Sons, Inc. (2007). Both book and accompanying CD-ROM are useful. Required text
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Chapter 1- exam # 1 15% exam #2 15% exam #3 15% final 30% g GRADING Homework, quizzes, (INDIVIDUAL) 15% Special assignments (in GROUPS) 10%
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Chapter 1- Materials are. .. engineered structures ...not blackboxes! Structure ...has many dimensions. .. Structural feature Dimension (m) atomic bonding missing/extra atoms crystals (ordered atoms) second phase particles crystal texturing < 10 -10 10 -10 10 -8 -10 -1 10 -8 -10 -4 > 10 -6 1 CHAPTER 1: MATERIALS SCIENCE & ENGINEERING
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Chapter 1- 1.1 Historical Perspective Early Civilivations Bronze Age, Iron Age, Stone Age Materials were naturally occuring
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Chapter 1- Historical Perspective (Cont’d) Modern Era Understand structure and properties New materials have evolved Ex. Plastics, Glasses, Fibers
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Chapter 1- 1.2 Materials Science and Engineering Structure Atomic level – Organization of atoms or molecules relative to one another Microscopic – Large groups of atoms that are normally agglomerated together Macroscopic- Elements that can be viewed by the “naked eye”
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Chapter 1- Property Example (Physics) Example Properties Mechanical Rate of material deformation to an applied load Elastic modulus Electrical Response of material to an applied electrical field Electrical conductivity Thermal Material expansion/contraction with change in temperature Heat capacity, thermal conductivity Magnetic Response of a material to an applied magnetic field Magnetic susceptibility Optical Response of material to electromagnetic radiation Refractive index Deteriorative Rate of decomposition of material (often in presence of acid, etc.) Corrosion rate Materials Science and Engineering
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Chapter 1- Materials Science and Engineering Six Categories of Properties Mechanica l – Deformation to an applied load Electrical – Conductivity and dielectric constant Thermal – Heat capacity and thermal conductivity Magnetic – Induction and spin Optical – Index of refraction and reflectivity Chemical – Reactivity
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Chapter 1- 1.3 Why do we study materials? Many engineering fields deal with a design
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ch01-Materials Introduction - CHEN 313: Materials Science...

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