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Materials Science 115a

Principles of Materials Science I

Fall Quarter 2012

Instructor: Prof. Sossina M. Haile
    307 Steele Laboratories, x2958, smhaile@caltech.edu

Class Meetings: MWF 11am -12pm, 080 Moore

Teaching Assistant
:
    Alex Zevalkink, 317 Steele, x4804, mobile: (626) 616-5962, azw@caltech.edu

TA Office Hours:
   Mondays, 7-9 pm, location TBD

Text: None required

Recommended: (on reserve in SFL)

Introduction to Materials Science for Engineering, 7th Ed., James F. Shackelford, 2009, Pearson, ISBN 0-13-601260-4. Copies to be available through adopta-text.

Understanding Solids: The Science of Materials, Richard Tilley, 2004, Wiley, ISBN 0-470-85275. This text is out of print in hard-copy, but soft-copy is to be available through adopta-text.

Reserved Texts: (in SFL)
    "The Principles of Engineering Materials,"
    Barrett, Nix and Tetelman

    "Phase Transformations in Metals and Alloys,"
    Porter and Easterling

    "Quantum Chemistry," by Levine

    See also "Quantum Physics of Atoms, Molecules, Solids, Nuclei, and Particles"
    by Eisberg and Resnick, on reserve for Ch21a, Mil-8 reserves

Course Structure:

Homework: 50% (weekly, 8 regular assignments)
Midterm Homework: 15% (Oct 31 - Nov 6)
Final: 35% (Dec 12 - 14)


Lecture Handouts/Presentations (some from previous years)

Bonding and Structure

10/01/12 -- course syllabus; lecture 1 powerpoint
10/03/12 -- lecture 2 powerpoint; close-packed layer
10/05/12 -- lecture 3 powerpoint; metal structures
10/08/12 -- lectures 4 and 5a; ionic structures handout
10/10/12 -- lectures 5b and 6; polymer structure; structure & crystallography

10/12/12 -- no lecture

anticipated for 10/15/12 - 10/17/21 (TA lecturing)

10/15/12
-- lecture 7a powerpoint; crystallography
10/17/12 -- diffraction, can view lecture from 10/12/11 here (flash or audio); also available are handwritten diffraction notes

Defects and Diffusion


10/19/12 -- lecture 9 evaluate defect concentrations (handwritten notes)
10/22/12 -- lecture 10 powerpoint (diffusion); diffusion hand-out


Defects and Mechanical Properties

10/24/12 -- lecture 11 powerpoint (dislocations); dislocation hand-out
10/26/12 -- lecture 12 powerpoint (dislocations, elastic properties)
10/29/12 -- lecture 13 powerpoint (dislocations, stress-strain curves)
10/31/12 -- lecture 14 resolved shear stress, theoretical shear stress (notes)
11/02/12 -- lecture 15 powerpoint (grain boundaries)
11/05/12 -- lecture 16 powerpoint (fracture)

Electronic Properties of Materials

11/07/12 -- lecture 17; quantum chemistry review, begin hydrogen atom (notes)
11/09/12 -- lecture 18; hydrogen atom, Bohr model, H2+ ion (power point; notes)
11/12/12 -- lecture 19 power point (atoms to molecules to solids, MO/LCAO)
11/14/12 -- lecture 20; particle in a box, density of states (power point; notes)
11/16/12 -- lecture 21; electron distribution function, metals vs. insulators (notes)
11/19/12 -- lecture 22; electrical conduction in semiconductors (notes)


Thermodynamic properties of materials

11/20/09
-- handwritten lecture notes1; notes2
11/23/09 -- handwritten lecture notes
11/25/09 -- handwritten lecture notes
11/30/09 and 12/02/09 -- handwritten lecture notes

12/02/11 -- phase behavior review and selected phase diagrams (powerpoint)


Schedule Changes (last updated 11/07/12)

10/08/12 -- 12:30 pm end
10/10/12 -- 12:30 pm end
10/12/12 -- No class
10/15/12 -- TA to lecture

10/17/12 -- TA to lecture
11/30/12 -- TA to lecture

12/03/12 -- 12:30 pm end
12/05/12 -- 12:30 pm end
12/07/12 -- No class


Course Content:

Introduction to Materials Science

Length scales of materials structure
Chemistry + Processing -> Structure -> Properties

Structure

Structure of the Atom & Introduction to Chemical Bonding
Crystalline Structure
Structural Characterization (X-ray Diffraction)
Microstructure
Defects in Crystalline Materials
Amorphous Structure

Defects in Crystalline Materials and Connections to Properties

Point Defects and Diffusion & Ionic Conductivity
Dislocations and Mechanical Deformation
Surfaces
Volume Defects and Fracture

Electrons in Solids

Chemical Bonding, Revisited
Electronic Structure
Electronic Conductivity: Metals vs. Insulators

Thermodynamics

1st and 2nd Laws
Gibb’s Free Energy
Phase Diagrams

Some Other Properties Along the Way

Thermal: Thermal Expansion, Heat Capacity, Thermal Conductivity
Optical Properties (time permitting)


Course Administration (subject to change with due notice):
  • Links below will become active when the homework is assigned. Solutions are not posted.
  • Midterm Homework 5 - this assigment might not be posted; this set is to be done independently and will be due Wed, Nov. 7. Solutions will not be posted.
    Class average: 53.4/65. Standard deviation: ~5

  • Homework 9 [Due: Thurs, Dec 6] - will not be accepted late
  • Course Evaluation Form - online form
  • Final Exam - this will not be posted; only the instructions and some information will be available here; exams will be available outside Steele 307 as of 9 am, Tuesday, Dec. 11.

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