Homework and Exam Questions and Solutions

• See KMU 396 web site for previous student seminars on Materials

• HW research question 1: Show physical or mathematical explanation for the graph in Figure 7.2 (Askeland) that shows the fracture toughness K_c of a 300,000 psi yield strength steel decreasing with increasing thickness eventually leveling off at the plane strain fracture toughness K_Ic. 

• HW I (Chapter 8, Askeland and Phule): 8.5, 8.10, 8.26, 8.43, 8.55, 8.64

• Solutions to HW I

• Midterm exam I questions

• Midterm take-home examination I

Projects

Presentation topics:

Prepare 20-25 minute power-point lectures in English to teach the topic.

Give introductory information on the above topics first, list examples and application areas, show micrograhps.

List advantages and disadvantages.

Do not load your slides with many pictures and words, organize and distribute accordingly.

Keep your slides simple but neat and to the point.

Refer to scientific journal papers.

List all references used.

Make sure to avoid plagiarism.

Use your own words for any explanations.

Be ready to answer 2-3 questions from the audience at the end of the presentation.

Discussion should include but not be limited to the following:

Metals

Structure of Metals: Describe the crystal structure of metals.

Mechanical Properties: Discuss the typical mechanical properties of metals.

Processing: Tell how metals are made into useful products.

Alloys: Describe what an alloy is.

Corrosion: Discuss the conditions and chemistry of corrosion.

Metal Ores: Talk about how metals are removed from their ore.

Ceramics

Atomic bonding in ceramics

Classification of ceramics

Thermal Properties of ceramics

Optical Properties: Describe different optical properties.

Mechanical Properties: Talk about brittleness, stress, and strain.

Electrical Properties: Discuss dielectrics and superconductivity.

Ceramic Processing: Illustrate different methods in forming products.

Polymers

Polymerization Reactions: Describe the different reactions used to make polymers.

Polymer Chemical Structure: Discuss different chemical configurations.

Polymer Physical Structure: Talk about the crystalline structure of polymers.

Members of Polymers: Define thermosets and thermoplastics.

Polymer Processing: Depict the many processing techniques.

Recycling: Talk about recycling and why it is important.

Semiconductors

Conductors, Insulators, and Semiconductors: Talk about electrical characteristics of materials.

Application and Research: Discuss how p-n junctions work.

Properties and Processing: Describe the processing and properties of semiconductors.

Composites

Structure and Composition: Explain what they are made of and how the components are arranged.

Matrices: Describe the functions of the matrix.

Reinforcements: Talk about the different forms of reinforcements.

Properties: Show the different properties obtainable with composites.

Microstructure: Detail the interface between the matrix and reinforcement phase.

Fabrication: Talk about how composites are made.

Concrete

Define Concrete.

Properties of Concrete: Discuss properties

Hydration of Cement: Exülain the chemical changes of concrete.

Strength of Concrete: Describe how different things determine the overall strength of concrete.

Content could include information on:

- Definition of the topic (what is the topic about?)

- Any classifications

- Production/manufacturing methods

- Heat treatment, hardening, strengthening methods and phase transformations

- Various products and their properties

- Effect of alloying on the properties

- Examples for applications

Your presentation format should include (but is not limited to) the following:
- A title slide including the title of your presentation, your name and affiliation, date and place
- A slide showing an outline of your speech
- A slide explaining the goals of your presentation
- Slides explaining the material (should have font size minimum 20pt, i.e. readable by the audience; should be bulleted, i.e. do not use long paragraphs)
- References next to pictures and figures adopted from web or literature
- A conclusion/summary slide

During the presentation, you should:

- Know what you are talking about

- Look professional

- Act professional

- Do not read the information on the slides but provide explanations in your own words

- Be ready to answer a few questions in a professional manner