Final - Goals of engineering Select best material for job...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Goals of engineering Select best material for job If something goes wrong Understand relationships of processing, structure, properties, performance Open new design opportunities with new materials Material science is the knowledge and engineering is the use of that knowledge Section 1: Atomic Crystalline FCC: copper, aluminum, lead, nickel, and silver. 4 atoms/unit cell and coordination number is 12 Side is 4R=sqrt(2)a APF=volume of atom cell/volume of cell 4*4/3*pi*R^3 BCC: alpha iron, vanadium, tungsten, niobium, and chromium. 2 atoms and coordination number is 8 Side is sqrt(3)a=4R HCP: magnesium, a titanium, zinc, beryllium, and cadmium. Has 6 atoms and coordination number is 12 APF=.74
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
CSsCI: equal number of ions, ionic CN=8, so 8 CI ions surround Cs Radius ratio is .94=rcation/ranion Sqrt(3)a=2r+2R (Sphere*1 + sphere*1)/a^3 NaCI i s salt crystal, ionically bonded Equal number of ions, sodium is surrounded by 6 Chloride anions, CN=6
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 09/25/2010 for the course MATE 210 taught by Professor Gary during the Spring '10 term at Aarhus Universitet.

Page1 / 15

Final - Goals of engineering Select best material for job...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online