tailieunhanh - Materials Science And Engineering An Introduction

In this Eighth Edition we have retained the objectives and approaches for teaching materials science and engineering that were presented in previous editions. The first, and primary, objective is to present the basic fundamentals on a level appropriate for university/college students who have completed their freshmen calculus, chemistry, and physics courses. In order to achieve this goal, we have endeavored to use terminology that is familiar to the student who is encountering the discipline of materials science and engineering for the first time, and also to define and explain all unfamiliar terms. The second objective is. | MATERIALS SCIENCE AND ENGINEERING AN INTRODUCTION EIGHTH EDITION David G. Rethwisch Characteristics of Selected Elements Element Symbol Atomic Number Atomic Weight amu Density of Solid 20C g cm3 Crystal Structure 20C Atomic Radius nm Ionic Radius nm Most Common Valence Melting Point C Aluminum Al 13 FCC 3 Argon Ar 18 Inert Barium Ba 56 BCC 2 725 Beryllium Be 4 HCP 2 1278 Boron B 5 Rhomb. 3 2300 Bromine Br 35 1- Cadmium Cd 48 HCP 2 321 Calcium Ca 20 FCC 2 839 Carbon C 6 Hex. 4 sublimes at 3367 Cesium Cs 55 BCC 1 Chlorine Cl 17 1- -101 Chromium Cr 24 BCC 3 1875 Cobalt Co 27 HCP 2 1495 Copper Cu 29 FCC 1 1085 Fluorine F 9 1- -220 Gallium Ga 31 Ortho. 3 Germanium Ge 32 Dia. cubic 4 937 Gold Au 79 FCC 1 1064 Helium He 2 Inert -272 at 26 atm Hydrogen H 1 1 -259 Iodine I 53 Ortho. 1- 114 Iron Fe 26 BCC 2 1538 Lead Pb 82 FCC 2 327 Lithium Li 3 BCC 1 181 Magnesium Mg 12 HCP 2 649 Manganese Mn 25 Cubic 2 1244 Mercury Hg 80 2 Molybdenum Mo 42 BCC 4 2617 Neon Ne 10 Inert Nickel Ni 28 FCC 2 1455 Niobium Nb 41 BCC 5 2468 Nitrogen N 7 5 Oxygen O 8 2- Phosphorus P 15 Ortho. 5 Platinum Pt 78 FCC 2 1772 Potassium K 19 BCC 1 63 Silicon Si 14 Dia. cubic 4 1410 Silver Ag 47 FCC 1 .