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MSE course syllabi
Materials Science and Engineering 341
Atomic Scale Structure of Materials
Catalog Data:
Crystal structures in metals, ceramics, and other materials, point defects in crystals, structure determination by x-ray diffraction. Au Qtr., U3. Required.
Prerequisites:
Prereq or concur: MSE 205. Not open to students with credit for MSE 541.
Time Distribution:
3-48 minute lectures per week.
Objectives:
Develop an understanding of amorphous and crystal structures and point defects in metals, ceramics, semiconductors and polymers, introduce X-ray techniques for determination of phase/structure, and prepare students for subsequent studies on structure-property relationships. Meet ABET Criteria 3 Outcomes a, e, g, h, and k.
Textbooks:
No single textbook is used for this course. Readings are in two main sources:
(1.) D. A. Rigney, special compilation of reading, partly written by instructor and partly taken from other books, available via Grade A Notes. See instructor for current edition.
(2.) W. D. Callister, Materials Science and Engineering, used earlier in MSE 205, so students already have it. See instructor for current edition.
Other reading will be provided in class.
Topics/Content (number of weeks):
1. Introduction to materials structure; bonding and implications forstructure (0.5)
2. Crystal structure (3)
- Coordinates, notation, simple structures, size effects
- Simple calculations designed to help visualize structures (#/cell; 1-D, 2-D and 3-D density; bond lengths, coordination #, etc.)
- Lattices, 14 Bravais lattices, crystal systems, unit cell choice, symmetry
- Miller indices for directions and planes
- Miller-Bravais indices for hexagonal structures
- Crystal chemistry & important prototype structures (connections between different structures); packing, stacking; stoichiometry; charge neutrality
- Anisotropy and effect on properties
3. Point defects (2)
- Vacancies & interstitials; equilibrium concentration
- solid solution
- charge neutrality & K.-V. notation
Note: line defects (dislocations) and 2-D defects (surfaces &interfaces) will be covered in MSE 342 and other courses)
4. Noncrystalline (amorphous) materials (1)
- Structure of amorphous materials
- examples: oxides, silicates, metallic glass, polymers
5. Polymers (structural emphasis) (1.5)
- nomenclature
- structure, including structure at different size scales
6. Introduction to X-ray diffraction (1)
- Generation of X-rays
- Bragg’s law
- Atomic scattering factor and simple structure factor calculations
- Powder methods for phase identification (Note: X-ray lab in Wi Qtr)
Grading Plan:
30% each mid-term exam, 10% quizzes.
Professional Component Content:
Engineering science and design: 3 credits. This is the first in a series of three courses on structure of materials.
Engineering science: 2.5 credits or 83%
Engineering design: 0.5 credits or 17%
Design Component Content:
Students acquire basic knowledge of structure needed to design materials by controlling composition and structure. In that sense, more than 50% of the course is design oriented. Design component of grade, based on quizzes and three exams: 10% estimated.
Relation to Program Objectives:
1. Program Objectives 1, 2: Course covers fundamentals of materials structure needed for subsequent courses in materials science and engineering (metals, ceramics and polymers). Includes emphasis on crystal geometry, symmetry, connections between structures, defects and the energies involved for different materials.
2. Program Objective 2: Analytical skills developed in problem sets, help sessions and exams, augmented by use of crystal structure programs available on Dept. computers and on internet.
3. Program Objective 1: Basic theme of course is structure. Connections with properties are brought in at every opportunity, increasingly so as basic structure concepts are mastered.
Academic Integrity, Academic Misconduct
Academic misconduct may be found in any action that tends to distort the accurate assessment of any student’s individual accomplishments that are evaluated for the purpose of grading or conferring academic credit. Note that a student may be guilty of academic misconduct, for example, by cheating, collaborating, plagiarizing, or by allowing another student to cheat, collaborate, or plagiarize. Note also that the distortion applies, for example, to exams, homework assignments, and laboratory work. To the extent that any class activity (for example: attendance or participation) is used for evaluation for the purpose of grading or conferring academic credit, falsifying or distorting such activity, or permitting another student to falsify or distort such activity, represents academic misconduct.
Additional guidance about what represents academic integrity and misconduct, and related university-wide policies and procedures are available at the following locations:
http://oaa.osu.edu/coam/faq.html
http://oaa.osu.edu/coam/ten-suggestions.html
Course-specific exceptions or amplifications to the departmental and university statements outlined above will be provided by the faculty instructor in writing, preferably as part of the course syllabus.
Note: Students should not request nor accept guidance on these matters from a teaching assistant, fellow student, or anyone other than the faculty instructor of record for this course.
Disabilities Statement
Any student who feels s/he may need an accommodation based on the impact of a disability should contact the Office for Disability Services at 614-292-3307 in room 150 Pomerene Hall to coordinate reasonable accommodations for students with documented disabilities. (URL: http://www.ods.ohio-state.edu/)
Advice on such matters is also available from the MSE department’s undergraduate adviser (1xx-6xx courses) and graduate coordinator (7xx-9xx courses) whose offices may be found in room 477 Watts Hall.
Megan Daniels, Undergraduate Advisor, (614) 292-3145, e-mail Megan concerning the MSE undergrad studies
Mark Cooper, Graduate Studies Coordinator, (614) 292-7280, e-mail Mark concerning the MSE graduate studies
