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Fundamentals of Materials Science

Code: L.EMAT018     Acronym: FCM

Keywords
Classification Keyword
OFICIAL Science and Technology of Materials

Instance: 2021/2022 - 2S Ícone do Moodle

Active? Yes
Responsible unit: Department of Metallurgical and Materials Engineering
Course/CS Responsible: Bachelor in Materials Engineering

Cycles of Study/Courses

Acronym No. of Students Study Plan Curricular Years Credits UCN Credits ECTS Contact hours Total Time
L.EMAT 35 Syllabus 2 - 6 52 162
Mais informaçõesLast updated on 2022-03-02.

Fields changed: Calculation formula of final grade, Bibliografia Complementar, Componentes de Avaliação e Ocupação

Teaching language

Portuguese and english

Objectives

This curricular unit was designed to incorporate theoretical and practical foundations of Materials Science, so that students are able to apply them to real situations and contexts. Knowledge of electronic and crystalline structure are fundamental to understanding the physical and mechanical behavior of engineering materials.
Afterwards, the basic concepts of diffusion, which control most of the phase transformations, are introduced, and examples of its application to real cases are discussed.
The theoretical knowledge that governs phase transformations controlled by diffusion, solidification and solid state transformations, allow students to know the microstructure manipulation strategies. Its application to concrete cases will be essential to acquire a comprehensive view of the relationship between processing and the structure of materials.

 

Learning outcomes and competences

At the end of this course, students ought to know to:


Describe the difference between crystalline and noncrystalline materials.

Define concepts such as crystal lattices, directions and planes.

Apply Bragg's Law and explain its relationship to the crystal structure;

Interpret diffraction patterns.

Name and describe the mechanisms of diffusion.

Write the equations for Fick’s 1st and 2nd laws.

Calculate diffusion coefficient at different temperatures.
Apply Fick’s laws to solve real problems.

Know the influence of heat and mass flow on the nucleation and growth of crystals from the melt.

Interpret the influence of constitutional undercooling and alloying in the morphology of the solidification front.

Describe and explain the principles of solid-state phase transformations.

Explain the effect of different interfaces on nucleation and microstructure.

Explain the difference between homogenous and heterogeneous nucleation.

Working method

Presencial

Program

Crystalline structures. Unit cells, points, directions and crystallographic planes. Monocrystals and polycrystals.

X-ray Diffraction. X-rays, continuous and characteristic spectra. Absorption Limits. Diffraction principles and its application to the identification of crystalline materials. Interpretation of spectra.

Diffusion: diffusion flow (Fick's 1st law) and concentration gradients (Fick's 2nd law); atomic mechanisms of diffusion; diffusion variables; Kirkendal effect; alloy diffusion. Case analysis.

Solidification: homogeneous and heterogeneous nucleation; solidification of pure metals and alloys; structures and leakage defects.

Solid state phase transformations: nucleation and growth; microstructures; kinetics.

Calorimetry techniques. Exploration of differential scanning calorimetry (DSC) tests. 

Mandatory literature

William D. Callister and David G. Rethwisch; Materials Science and Engineering: An Introduction, John Wiley & Sons Inc, 2018. ISBN: 978-1-119-40549-8
David A. Porter; Phase transformations in metals and alloys. ISBN: 978-1-4200-6210-6
Michael E. Brown; Introduction to thermal analysis. ISBN: 1-4020-0472-9

Complementary Bibliography

Wendelin Wright and Donald Askeland; The Science and Engineering of Materials, 2021. ISBN: 978-0357447864

Comments from the literature

Students also have access to presentations prepared by the teacher.

Teaching methods and learning activities

Classes consist primarly of lectures on different topics of syllabus. Exercises, discussions and films observation will be organized to apply and visualize the content of the lectures.
Students will be involved in the learning process through discussion and analysis of issues and problem solving. The application of theoretical concepts to real cases by students, working independently or together with partners and in group, will also be included in the process. Crystallography simulation software will be used to teach crystallographic gratings and X-ray diffraction. The solidification and solid state transformations of engineering materials will be discussed and analyzed using results from DSC experiments.

The assessment will focus on work presented by students during class, such as analysis of test results and problem solving, mini-tests and a final written exam.

Evaluation Type

Distributed evaluation with final exam

Assessment Components

Designation Weight (%)
Apresentação/discussão de um trabalho científico 20,00
Exame 50,00
Teste 30,00
Total: 100,00

Amount of time allocated to each course unit

Designation Time (hours)
Estudo autónomo 52,00
Apresentação/discussão de um trabalho científico 30,00
Frequência das aulas 52,00
Trabalho escrito 28,00
Total: 162,00

Eligibility for exams

Average grades of class presentations and quizzes with a value greater than 9.

Calculation formula of final grade

Final grade = 0.5 of the exam grade + 0.2 of the average of the grades of the presentations + 0.3 of the average of the grades of the mini-tests.

Special assessment (TE, DA, ...)

Exam

Classification improvement

Exam
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