Name _______________________________________ MIE Introduction to Materials‚ Fall ‘08 Exam #2 Answer all 5 Questions (Please keep your writing neat‚ use full sentences‚ and make the writing large enough so that it can be read.) Problem #1 a) Describe the difference between the substitutional and the interstitial mechanism for mass transport - diffusion in metals. b) Do these two mechanisms control mass transport – diffusion in 1) ceramics and 2) polymers? Explain your answers.
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others tight‚ some have an ankle collar‚ while others do not‚ but one of the most apparent features that makes a boot special is the material that it is comprised of. There are two prominent materials that soccer cleats are made of‚ man-made synthetic material‚ and kangaroo leather. Synthetic material has been dominating the market currently‚ it is a lightweight material‚ water resistant‚ and usually contains the latest technologies. Kangaroo leather is unique from other leathers like calfskin because
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Paper as food packaging material Paper is a quite versatile material‚ utilized in flexible‚ semi-rigid‚ and rigid packaging. It is made into a wide variety of single- and multi-wall bags. It can also be made into a thicker stronger structure which is made into cartons and boxes that provide mechanical protection for many foods. The paperboard can be converted to an even stronger material called corrugated paperboard that is converted into boxes used for logistics. Most types of paper provide a partial
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Material Things Become Important After "The Day" During a nuclear war between Russia and the United States‚ the town of Fort Repose‚ Florida‚ is in the danger zone of radiation poisoning and contaminated items. Randy and the townspeople of Fort Repose must remain calm and ration their supplies. However‚ when the material things run low‚ everything becomes important. People must be creative and composed during this time of chaos. Therefore‚ the importance of material things after "The Day" leads
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Recycling is processing used materials into new products to prevent waste of potentially useful materials‚ reduce the consumption of fresh raw materials‚ reduce energy usage‚ reduce water and air pollution. Many kinds of glass‚ paper‚ metal‚ plastic‚ textiles and electronics can be recyclable materials. Goverments encourage their citizens to seperate their garbage and they make some rules for restaurants and supermarkets to supply recycling process. Although it is claimed that recycling is not worth
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Introduction of Green Building Materials INTRODUCTION Materials are the stuff of economic life in our industrial world. They include the resource inputs and the product outputs of industrial production. How we handle them is a major determinant of real economic efficiency‚ and also has a major impact on our health and the health of the natural environment The built-environment is also a strategic realm of social‚ economic and environmental change. Various writers have stated that spatial redesign
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Study material on Organisational Behaviour WRITE SHORTS NOTES ON ANY FIVE: (a) PERCEPTION: Perception is an important cognitive process deciding how a person will behave. Through this complex process people interpret world to themselves. Perception is a unique phenomenon‚ influencing people behave differently. Externally stimuli selectively are affecting by such factors as the intensity‚ size‚ movement‚ repetition etc. Internally perceptual selectivity is influenced by learning‚ culture‚ experience
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Engineering Materials Week 2 3.1 What is the difference between atomic structure and crystal structure? Atomic structure relates to the number of protons and neutrons in the nucleus of an atom. Crystal structure pertains to the arrangement of atoms in the crystalline solid material. 3.9 Calculate the radius of a tantalum atom‚ given that Ta has an BCC crystal structure‚ a density of 16.6 g/cm^3‚ and an atomic weight of 180.9 g/mol. For BCC n=2 atoms/unit cell 3.47 Below are shown three different
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Themes and Dialogue of O’Brien in The Things They Carried War has done many horrible things to many people throughout time all over the world. War experience filled with death‚ suspense‚ and constant fear has swept through millions and millions of people who are still scared by the horrific experience. To some so horrific that a normal life‚ post war‚ was almost unbearable. But some were able to take the experience and share it to the world. Tim O’Brien is a perfect example of this. O’Brien was
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Assignment On Engineering Materials (Glass) Introduction Glass is a non-crystalline solid material. Glasses are typically brittle‚ and often optically transparent. The most prevalent type of glass‚ used for centuries in windows and drinking vessels‚ is soda-lime glass‚ made of about 75% silica (SiO2) plus Na2O‚ CaO‚ and several minor additives. Often‚ the term glass is used in a restricted sense to refer to this specific use. [pic] [pic]Roman Cage Cup from the 4th century A.D. In
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