Homework # 6: Nucleation and Phase Transformations
1. Describe the difference between homogeneous and heterogeneous nucleation?
2. Derive the critical nucleus size and Gibbs free energy change for homogeneous nucleation.
3. What are two basic
MSEN 601 600
HOMEWORK #3: Diffusion and Mechanical properties
1. Briefly describe the difference between self-diffusion, vacancy diffusion and interdiffusion.
2. (a) Compare interstitial and vacancy atomic mechanisms for diffusion. (b) Why inter
HOMEWORK # 5: Thermodynamics
1. Prove the following relations:
dG = -SdT + VdP
CV = (
2. Describes Henrys law and Raoults law.
3. Derive Clausius Clapeyron equation
4. Describe the first and second laws of thermodyn
MSEN 601 600
Read textbook by Rorrer, Chapter 6-9
1. Relative to electrons and electron states, what does each of the four quantum numbers
2. What are the electron configurations for Si, Ar, Ca, Cu?
3. Why does a h
FIRST MIDTERM EXAM
1 March 2012
Print Name Clearly
Information. This is a closed-book exam; no books, notes, other students, other student exams, or any
other resource materials may be co
Problem: Determine the reciprocal lattice of an FCC lattice!
Solution: Select a Cartesian coordinate system with unit vectors i,j and k! Position the
coordinate axes so that in this system one of the corners of the FCC unit cell will be at (0,0,0)
X-Ray Diffraction by NaCl
Department of Physics and Astronomy, San Francisco State University, San Francisco, California 94132
Abstract: Previous studies have shown that X-rays are produced by electrically accelerating electrons prod
Lecture 2.1 Notes
Atomic bonding: Ionic Bonds
Atomic Bonding: Metallic bonding (slide 16)
Using NA as an example when there is a lot of Na they all lose their
only valence electron, creating a sea of electrons which is the
reason they stick to
Ca behaves chemically most like which of these other
Columns: Similar Valence Structure
give up 1e
give up 2e
give up 3e
Thursday: Atomic Structure
Tuesday: Atomic Bonding
Ring of Fe atoms
on Cu surface
Wavelike behavior of electrons from
Cu surface trapped in ring
Philosophical Magazine A
ISSN: 0141-8610 (Print) 1460-6992 (Online) Journal homepage: http:/www.tandfonline.com/loi/tpha20
Computer simulations of corrosion: Selective
dissolution of binary alloys
K. Sieradzki , R. R. Corderman , K. Shukla & R. C. Newman
See discussions, stats, and author profiles for this publication at: https:/www.researchgate.net/publication/303722246
Corrosion and Passivation of Magnesium Alloys
Article in Corrosion Science May 2016
J. Electrochem. Soc., Vol. 139, No. 1, January 1992 9 The Electrochemical Society, Inc.
1. G. A. Scholz and H. Gerischer, This Journal, 132, 1643
2. D. F. Blossey, Phys. Rev., B3, 1382 (1971).
3. M. Cardona, in "Modulation Spectrosc
The Measurement of pH in Aqueous
Systems at Elevated Temperatures Using
Palladium Hydride Electrodes
Digby D. Macdonald, *.1 Paul R. Wentrcek, and Arthur C. Scott
SRI International, Materials Research Laboratory, Menlo Park, California g~025
8-10. Derive the integrated formula for the Helmhotlz energy departure function.
Z 1 d ln Z
1 - B
d ln 1 B
d 1 B ln 1 B
ln 1 B 0 ln 1 B 0
8-16. Using the PR-
4-2. An ideal gas, with temperature independent CP=(7/2)R, at 15oC and having an
initial volume of 60 m3, is heated to constant pressure (P=0.1013 MPa) to 30oC by
transfer of heat from a reservoir at 50oC.
Calculate Sgas, Sreservoir, Suniverse?
Mater. Res. Soc. Symp. Proc. Vol. 1301 2011 Materials Research Society
Mg-Ti: A Possible Biodegradable, Biocompatible, Mechanically Matched Material for
Ilona Hoffmann1*, Yang-Tse Cheng1, David A. Puleo2, Guang
11-14. A vapor/liquid experiment for the carbon disulfide (1) + chloroform (2)
For all parts, we first derive the activity coefficient from a given experimental data.
1 1 sat
1 0.363 34.98 1.020
1 0.2 27.3
(a) isothermal, closed system, ideal gas
ideal gas isothermal U H 0
close system U Q WE / C 0 Q WE / C PdV
dV RT ln 2
(b) constant V, closed system, ideal gas
V 0 WE / C 0
ideal gas close
The Enhancement of Mg Corrosion Resistance by
Alloying Mn and Laser-Melting
Youwen Yang 1, , Ping Wu 2, , Qiyuan Wang 3 , Hong Wu 4 , Yong Liu 4 , Youwen Deng 3 ,
Yuanzhuo Zhou 1 and Cijun Shuai 1,4, *
State Key Laboratory of H
Fundamentals of magnesium
BACKGROUND:  Due to the light weight, high strength-to-weight ratio, high specific stiffness,
good elastic modulus and conductivity, as well as high damping capacity,Mg alloys have received
much attention in recent res
Resillience- capacity of material to absorb energy when it is deformed elastically and then, upon unloading, to have this energy
Impurity point defects- are found in solid solutions of which there are two types: substitutional and interstitial.