Introduction to Materials Engineering II

Code:

EMM0011

Acronym:

IEMA2

Keywords
Classification	Keyword
OFICIAL	Science and Technology of Materials

Instance: 2011/2012 - 2S

Active?	Yes
Responsible unit:	Materials Section
Course/CS Responsible:	Master in Metallurgical and Materials Engineering

Cycles of Study/Courses

Acronym	No. of Students	Study Plan	Curricular Years	Credits UCN	Credits ECTS	Contact hours	Total Time
MIEMM	38	Syllabus since 2006/2007	1	-	6	56	162

Teaching language

Portuguese

Objectives

Justification:
This is the first discipline of the course regarding the science and engineering of ceramics and polymers, and is centred on the study of the fundamental concepts of these materials that govern their industrial applications.

Objectives
This subject aims at attaining the following objectives: a) to study the basic concepts of ceramics and polymers b) to identify and study their crystalline and non-crystalline structures and the physical and chemical factors that are involved in the formation of such structures c) to analyse the main physical and chemical properties of these materials and d) to establish relationships among processing, structure and properties.

Knowledge and competences
- Knowledge on the basic principles associated to ceramics and polymers
- Identify, interpret and resolve exercises related to structures of ceramics and polymers
- To understand the relationships among structure, processing methods and properties of the obtained products.

Program

CERAMIC MATERIALS

Basic principles of ceramics
Introduction. Definitions. Classification of ceramics. Properties and main applications. Typical ceramic products.

Crystalline structures
Fundamentals. Oxides, carbides and nitrides structures. Interstitial sites. Silicate and Phosphate structures. Graphite and Diamond.

Non-crystalline structures
Definitions and fundamentals. Formation of non-crystalline structures. Transformation temperatures. Glass transition. Glass transition dependence on experimental conditions. Viscosity. Basic concepts of crystallisation.

Processing and Properties
Basic concepts of ceramic processing. Ceramic preparation. Forming techniques. Heat–treatments. Sintering. Traditional ceramics. Engineering ceramics.

Mechanical properties of ceramics. Elastic properties. Influence of microstructural parameters. Fast fracture. Deformation mechanisms. Fracture toughness. Transformation toughening. Fatigue. Thermal properties and high temperature behaviour. Abrasives. Refractory ceramics. Electrical properties of ceramics. Basic properties of dielectrics, semiconductors, ferroelectrics, and insulators. Examples of applications.

POLIMERIC MATERIALS

Basic principles of polymers
Introduction. Basic definitions and nomenclature. Classification: elastomers, thermoplastics and thermosets. Polymer science. Monomers and polymers. Applications.

Polymers science
Polymerisation reactions. Structure of polymers. Homopolymers and Copolymers. Polymerisation methods. Amorphous and crystalline polymers. Crystallinity and Isomerism. of thermoplastics. Transition temperature. Orientation.

Processing and Properties

Polymers processing. Basic principles. Extrusion. Injection moulding. Reaction injection moulding. Blow moulding. Thermoforming. Compression moulding, transfer moulding and casting. Rotational moulding. Calendaring. Characteristics and Variables.

Thermoplastics. Basic principles and classes of thermoplastics. Structure, properties and applications. Engineering thermoplastics.

Thermosets. Basic principles. Structure, properties and applications. Elastomers. Natural and synthetic elastomers.

Mechanical strength of polymers. Deformation mechanisms. Fracture and Creep. Polymers selection.

Teaching methods and learning activities

The teaching methodology allows students to actively participate in the knowledge acquisition in close collaboration with teacher. It is therefore a usual practice that students are questioned by the teacher during subject exposition, put questions or give their opinion. The first minutes of each class are dedicated to remind acquired knowledge in order to facilitate subject integration. Slide and over-head projection are the main means used by teacher. Whenever possible, practical examples of application of the theoretical aspects are presented. The experimental component of the subject is essentially composed of laboratory works. At the end of each experimental work a written reported is elaborated.

Evaluation Type

Distributed evaluation with final exam

Assessment Components

Description	Type	Time (hours)	Weight (%)	End date
Attendance (estimated)	Participação presencial	48,00
	Total:	-	0,00

Eligibility for exams

A minimum of 8 out of 20 is required in the theoretical part and minimum of 10 out of 20 in the laboratory component.

Calculation formula of final grade

The final classification is obtained through the relative proportion of 80% and 20% for the theoretical and laboratory components respectively.

Special assessment (TE, DA, ...)

The theoretical component is evaluated through a written examination and the laboratory component by experimental works identical to those elaborated throughout the semester, in a timetable that should be established in accordance with the teacher, and by an oral examination. The relative percentages of the theoretical and laboratory components are kept equal to 80 and 20% of the final classification respectively.

Classification improvement

The theoretical component may be improved through the requirement of an examination appeal by students, which has a relative proportion of 80% in the final classification. The laboratory component has to be repeated.