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Materials and Recycling

Code:

LTAM09

Sigla:

MR

Áreas Científicas
Classificação	Área Científica
OFICIAL	Solid Mechanics

Ocorrência: 2022/2023 - 2S

Ativa?	Yes
Unidade Responsável:	Departamento de Engenharia Mecânica
Curso/CE Responsável:	Environmental and Marine Technology

Ciclos de Estudo/Cursos

Sigla	Nº de Estudantes	Plano de Estudos	Anos Curriculares	Créditos UCN	Créditos ECTS	Horas de Contacto	Horas Totais
LTAM	51	Plano de Estudos 2016/17	1	-	6	60	162

Língua de trabalho

Portuguese

Objetivos

The overall goal of the unit is to provide general knowledge of materials used in engineering applications, their structure and typical properties, and their processing and recycling methods.
The specific objectives to achieve bu the students are:

• To know metallic materials and their properties, with relevance to ferrous and aluminium alloys.
• To know ceramic materials, both technical and traditional, and their typical properties; to know sintering and vitrification phenomena and to relate them with ceramic and glass properties.
• To know polymeric materials and their typical properties, production and processing techniques, recognizing the effect of processing additives on attained properties.
• To know composite materials, with relevance to fibre reinforced polymers.
• Know the separation processes for each family of materials; know the respective advantages and limitations.
• To thoroughly know dedicated recycling processes for each family of materials, including their advantages and limitations, typical properties, markets and common applications of the resulting secondary materials.

Resultados de aprendizagem e competências

Knowledge of the families of materials used in technology and engineering: metals, polymers, ceramics and composites and the relationship between their properties, structure, processing and performance in service.
Knowledge of the recycling ability of each family and of the most common separation and recycling processes.

Modo de trabalho

Presencial

Programa

1.INTRODUCTION
Materials for engineering applications; typical properties
Crystal structure; amorphous solids
2. PROPERTIES AND MECHANICAL TESTING
Tensile, hardness, impact and fatigue behaviour
Waste separation based on dedicated properties
3. METALS AND ALLOYS
Phase diagrams
Ferrous alloys. Aluminium alloys. Microstructure and properties
Corrosion degradation. Protection
Metal recycling: pre-processing; contaminants; recycling of ferrous and aluminium alloys scrap. Properties of secondary metal
4. CERAMIC AND GLASSES
Technical and traditional ceramics; glass
Crystallization; sintering. Composition and microstructure
Processing. Properties.
Glass recycling
5. POLYMERS
Thermoplastics, thermosets and elastomers
Processing. Properties
Chemical and mechanical recycling. Energy recovery
6. COMPOSITES
Matrix and reinforcement
Fibres
Laminates and sandwich structures
Specific mechanical properties
Recycling of fibre reinforced polymers

Bibliografia Obrigatória

M. Guedes; Tópicos de Reciclagem de Materiais: Sebenta de apoio à disciplina de Materiais e Reciclagem, 2011
W. D. Callister; Materials Science and Engineering: An Introduction, John Wiley & Sons, 2000

Métodos de ensino e atividades de aprendizagem

• Theoretical explanation.


• Group work regarding execution of experimental activities in lab environment, with specific guides, for knowledge consolidation.

Tipo de avaliação

Distributed evaluation with final exam

Componentes de Avaliação

Designation	Peso (%)
Teste	70,00
Trabalho laboratorial	30,00
Total:	100,00

Componentes de Ocupação

Designation	Tempo (Horas)
Elaboração de relatório/dissertação/tese	25,00
Estudo autónomo	80,00
Frequência das aulas	45,00
Trabalho laboratorial	10,00
Total:	160,00

Obtenção de frequência

HYPOTHESIS 1
Distributed evaluation WITHOUT final exam

• 2 intermediate tests (70%)
• 5 labs with delivery of written report (30%)

- Tests have no minimum score; average ≥ 8.5/20
- No consultation allowed
- It is mandatory to carry out both tests
- Students who opt for test evaluation can only propose to appeal
   examination.

- No minimum score for lab reports.
- Group work.
- There's no recap of reports.
- Reports are delivered in pdf version, by email, within 1 week,       
  maximum.

- Failing to deliver an evaluation element implies "zero" score on that
  component

Course approval requires final grade ≥ 9,5 val. 



HYPOTHESIS 2
Distributed evaluation WITH final exam.

- Final exam - 70%
- Laboratory work with written report (4 works) - 30%

- Mandatory exam grade ≥ 9.0/20
- No consultation allowed
- Students who opt for tests evaluation , can only propose to appeal.
   exam.

- Lab reports do not have minimum grade.
- There's no recap of reports.

- Failing to deliver an evaluation element implies "zero" score on that
  component

Course approval requires final grade ≥ 9,5/20

Fórmula de cálculo da classificação final

HYPOTHESIS 1
Distributed evaluation WITHOUT final exa

NF = 0.7xT + 0.3xL

onde
NF - final grade
T - test average
L - lab reports average

HYPOTHESIS 2
Distributed evaluation WITH final exam

NF = 0.8xE + 0.2xL 

onde
NF - final grade
E - exam grade
L - lab reports average

Avaliação especial (TE, DA, ...)

Working Students, Federated Athletes, Student's Unions Leaders  and Students under the Law of Religious Freedom must contact the  professor by the end of the second week of the semester, to present their relevant specificities, as provided for in the respective diplomas.

Observações

TUTORING
Thurdays, 2:30-4:30 pm
room E207