BTE2210 Engineering materials

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BTE-2210Engineering materials

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Course details

• Instructor Dr. Mohamed H. Hassan
• Office Deputy Dean (Academic Affairs)
• Phone 4411
• mhhassan_at_iiu.edu.my
• Course 3 credits, 3 Lecture hours, 1.5 Lab
  hours.
• Text W. D. Callister Jr., Materials Scienec and
  Engineering An Introduction, John Wiley Sons,
  6th Edition, 2003

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Course details

• Course outline lecture notes are posted on
• http//eng.iiu.edu.my/mhassan/BTE-2210
• Quiz after each chapter.
• Two assignments.
• Lab every other week.
• Changing of assignment/Quiz grades can only be
  done during the first week after getting the
  grades.

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Evaluation

• Quiz (after each chapter) 15
  
• Assignments 5
• Lab 10
• Mid-term Exam 30
• Final Exam 40
• Mid-Term 6th of September, 2005 (Tuesday).

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Course objectives

• To explain the basics of atomic bonding, crystal
  structure, materials imperfections, and the
  different materials classes.
• To explain the mechanical and thermal materials
  properties and their relationship to the
  microstructure as well as the environmental
  effect on the material properties.
• To introduce the concept of materials selection
  for a certain application.
• To introduce the basics of biomaterials,
  biocompatibility, and bioreactor structure
  materials.

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Learning outcomes

• After studying this course, the students would be
  able to
• Identify the material microstructure needed to
  obtain certain properties.
• Determine the mechanical properties associated
  with elastic, plastic, and viscoelastic material
  behavior.
• Select a certain material for a specific
  application using material selection charts and
  performance indices.
• Identify suitable materials to be used as
  biomaterial or bioreactor structure materials
  based on the operating conditions.

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Dress code in attending classes

• Matric card must always be displayed.
• No round neck shirt.
• No slippers.
• No tight pants or shirt.
• No long hair for brothers (cap should be removed
  while in the classroom)

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INTRODUCTION

• Materials to the engineer are like the human body
  to the physician a manifestation of Allah
  creation
• Anonymous

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Scanning Tunneling Microscope Image of Iron in
the (110) plane
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Dislocation netowrok
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Microcrack in a transistor
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Forest of dendrites formed during the
solidification of a nickel-based superalloy
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Material science VS. Human behavior

• Elastic-Plastic limit, yield point, permanent
  deformation, maximum stress, failure stress.
• Ductile vs. brittle fracture.
• Strain hardening.
• Plastic deformation by dislocation motion

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Material engineering VS. Bioengineering

• In the beginning, material application was a
  problem of material choice.
• These days, scientists can device their own
  materials !
• In material engineering, no ethical problems
  (compared with bioengineering).

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Engineering materials WHY

• Materials is the queen technology of any advanced
  technical system. The economics eventually
  depend on the materials, the reliability depends
  upon the materials and safety depends upon the
  materials

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Materials are not just input !

• Modern thermal power stations (e.g., boiler
  liners).
• Electronic industry (e.g., semiconductors)
• Nuclear reactors (e.g., reactor core)
• Space shuttles (e.g., shuttle surface tiles)
• Weapons (e.g., Shells and armors)

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Biomaterials WHY

• Tissue Engineering
• Each year in the US, organ and tissue loss
  accounts for an estimated US400 billion.
• Patients waiting for organ transplantation rose
  from about 27,000 in 1988 to 65,000 more in 1995.
• New Straight Times, 6/11/2002
• Four core technologies for tissue engineering
• Biomaterial technology, cell technology,
  construct technology, bioreactive technology for
  the organ and tissue generation.

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Biomaterials, Global Market Scenario

• 1996 USD4.3 billion world-wide
• 2004 USD7 billion USA alone

Biomaterials, Malaysian Market Scenario

• 1995 Imported USD6 million - Orthopaedics
  Dental products
• Presently Produced - Latex-based products
  simple medical devices

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Please, dont forget !

• There is a need to develop a sense of feeling for
  numbers, properties, materials,
• Look carefully at tables, figures.
• Compare and understand different figures.
• Pay attention to Summary part of each chapter.
• Use the CD supplied with the text.