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Unformatted text preview: Professor Mohamad Al-Sheikhly Department of Materials Science and Engineering and
University of Maryland
College Park, MD
Introduction to Materials Engineering ENMA 300 and ENME382
Description: Structure of materials, chemical composition, phase transformations, corrosion and mechanical
properties of metals, ceramics, polymers and related materials. Material selection in engineering applications.
Prerequisites: ENES 220 or permission of the department.
Class Schedule: MWF....... 9:00 am- 9:50am (CSI 3117)
Laboratory: M......... 2:00pm- 2:50pm (KEB 1135) Textbook: Callister, William D. Jr., Fundamentals of Materials Science and Engineering: An Integrated Approach
3rd Ed., John Wiley and Sons, 2008 ISBN 9780470125373 (Hardcopy and electronic versions are both acceptable.)
Course Objectives: The main objective of this course is to understand the structure-property relationships in
materials science and engineering. A student completing this course satisfactorily should be able to:
1. Identify features of crystal structures and their relationship to strengthening and failure mechanisms of materials.
2. Understand the similarities and differences in the microstructure of metals, ceramics, polymers, biomaterials and
nanomaterials and how these relate to their mechanical, thermal, electrical, magnetic and optical properties.
3. Interpret features of binary phase diagrams and identify phase transformations.
4. Identify structure-property relationships in engineering materials and how these apply to materials selection in
specific engineering problems.
5. Address basic concepts of engineering ethics.
0. Engineering ethics: will be covered on an exam.
I. Introduction - Chapter 1
II. Atomic Structure and Interatomic Bonding - Chapter 2
Atomic Structure and the Periodic Table
Atomic Bonding in Solids
Effects of atomic bonding: mechanical, thermal, electrical
III. Structure of Crystalline Solids (metals and ceramics) - Chapter 3
Crystal Structures: Unit cells, common structures, lattice parameters, density calculations, crystal systems
Polymorphism: Carbon including Fullerenes and carbon nanotubes
Reading: X-ray diffraction – concepts of X-ray diffraction
IV. Polymer Structures - Chapter 4
Polymer molecules - mers, chemistry, common polymers
Molecular structure and configuration
Thermoplastics and thermosets
Crystallinity 1 Professor Mohamad Al-Sheikhly
V. Defects and imperfections in solids (metals and ceramics) - Chapter 5
Grain Boundaries, phase boundaries, surfaces and microstructure
VI. Diffusion (metals and ceramics) - Chapter 6
Factors that influence diffusion
VII. Mechanical Properties - Chapter 7
Concepts of stress and strain
VIII. Deformation and Strengthening Mechanisms - Chapter 8
Dislocations, slip planes, slip directions and plastic deformation
Strengthening in metals
Recovery, recrystallization and grain growth
Deformation in ceramics
Deformation and strengthening of polymers
IX. Failure - Chapter 9
Fatigue: the S-N curve
X. Phase Diagrams and Phase Transformations - Chapters 10 and 11
Equilibrium Phase diagrams (metals and ceramics)
The iron-carbon system: microstructure development, effects of alloying elements
Phase transformations- basic concepts, kinetics (including TTT and CCT curves), metastable vs. stable
transformations including displacive (martensitic) transformations, microstructure development
Precipitation and dispersion hardening
Glass transition curves and crystallization of polymer and ceramic glasses
XI. Corrosion and Degradation of Materials - Chapt. 16
Degradation of Metals (Electrochemical and chemical corrosion, Oxidation and Hydrogen Embrittlement)
Degradation of Polymers (Swelling and dissolution, bond rupture, weathering)
Ceramics and semiconductors
Pop Quizzes 22%
5% Fri., March 7, 2011
Fri., April 8, 2011
Mon. May 17, 2010 8:00 am – 10:00 am (Sched. Classes)
(Expect 10 or 11 assignments)
(Intended to evaluate understanding and reinforce important concept & attendance) Homework is intended to give students a chance to practice with concepts and critical thinking skills. Students who complete
the homework tend to do better on exams and in the course. Not all assigned problems will be graded but detailed solutions
will be available. While general concepts may and should be discussed with classmates, students should regard homework as
an individual assignment except when team exercises are assigned. 2 Professor Mohamad Al-Sheikhly
Class attendance is strongly encouraged. Material not in the textbook will be covered and there will be several unannounced
quizzes. A lack of attendance and/or class participation will affect grades. Course Website: https://bb.eng.umd.edu (ENMA 300) CourseEvalUM Spring 2010: Your participation in the evaluation of courses through CourseEvalUM is a
responsibility you hold as a student member of our academic community. Your feedback is confidential and
important to the improvement of teaching and learning at the University as well as to the tenure and promotion
process. CourseEvalUM will be open for you to complete your evaluations for semester courses sometime in May
2010. Please go directly to the website (www.courseevalum.umd.edu) to complete your evaluations . By completing
all of your evaluations each semester, you will have the privilege of accessing online, at Testudo, the evaluation
reports for the thousands of courses for which 70% or more students submitted their evaluations. • Academic Accommodations: If you have a documented disability, you should contact Disability Support
Services 0126 Shoemaker Hall. Each semester students with documented disabilities should apply to DSS for
accommodation request forms which you can provide to your professors as proof of your eligibility for
accommodations. The rules for eligibility and the types of accommodations a student may request can be reviewed
on the DSS web site at http://www.counseling.umd.edu/DSS/receiving_serv.html.
• Religious Observances: The University System of Maryland policy provides that students should not be
penalized because of observances of their religious beliefs, students shall be given an opportunity, whenever
feasible, to make up within a reasonable time any academic assignment that is missed due to individual participation
in religious observances. It is the responsibility of the student to inform the instructor of any intended absences for
religious observances in advance. Notice should be provided as soon as possible but no later than the end of the
schedule adjustment period. Faculty should further remind students that prior notification is especially important in
connection with final exams, since failure to reschedule a final exam before the conclusion of the final examination
period may result in loss of credits during the semester. The problem is especially likely to arise when final exams
are scheduled on Saturdays.
• Academic integrity: The University of Maryland has a nationally recognized Code of Academic Integrity,
administered by the Student Honor Council. This Code sets standards for academic integrity at Maryland for all
undergraduate and graduate students. As a student you are responsible for upholding these standards for this course.
It is very important for you to be aware of the consequences of cheating, fabrication, facilitation, and plagiarism.
For more information on the Code of Academic Integrity or the Student Honor Council, please visit
The University of Maryland is one of a small number of universities with a student-administered Honors Code and
an Honors Pledge, available on the web at http://www.jpo.umd.edu/aca/honorpledge.html. The code prohibits
students from cheating on exams, plagiarizing papers, submitting the same paper for credit in two courses without
authorization, buying papers, submitting fraudulent documents, and forging signatures. The University Senate
encourages instructors to ask students to write the following signed statement on each examination or assignment:
"I pledge on my honor that I have not given or received any unauthorized assistance on this examination (or
Contribution of the course to the professional component: This course is an introductory course in Materials
Science and Engineering. It teaches the fundamentals of structure – property relationships in materials, which are
essential in the selection of materials for specific applications, which is important in the development of all
Relationship of course to program objectives: This course serves as the foundation for the Undergraduate
Program in Materials. All other courses build up on the basic concepts introduced in this course. 3 Professor Mohamad Al-Sheikhly
Instructor: Professor Mohamad Al-Sheikhly
Room number : 2309 D
Building 090, Chemical and Nuclear Engineering Building
Tel: (301) 405-5214
Office Hours (tentative): Mon. 10-11:30 am, Wed. 10-11:30 pm AND by appointment
Prepared: January 13, 2011 4 ...
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This note was uploaded on 08/02/2011 for the course ENMA 300 taught by Professor Alsheikhly during the Spring '11 term at University of Maryland Baltimore.
- Spring '11