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.
Premium Materials science Solid
Raw Material Mills are mainly used for grinding of cement raw materials‚ applies to the metallurgical‚ chemical‚ electric power and other industrial and mining enterprises of all kinds of ores and materials.It is efficient method can also be wet production‚ Raw Material Mill can also be grinding and drying at the same time for homework. Raw Material Mill Can be used to open stream grinding‚ also apply to and classifier composed of grinding cycle flow. The raw material grinding edge transmission form
Premium Material Raw material Materials
Hazardous Materials Inspection 03/16/2013 Hazardous Materials Inspection Fire Protection Inspectors implement fire prevention and inspection duties designed to identify and decrease or abolish fire hazards in high fire expectancy areas. Knowledge and skills a Fire Protection Inspector must have include: recognizing standards covering fire protection and prevention techniques and procedures; agency and installation manuals‚ rules‚ and regulations; federal‚ state‚ and local fire
Premium Fire protection Material safety data sheet Safety
Municipal Garbage Household Garbage Bio Medical Waste Garbage in the Payatas‚ Dumpsite Garbage in Tondo‚ Manila What are the causes of garbage? Overproduction of waste products is the primary cause of garbage pollution. As more material is wasted‚ disposing of them becomes a problem. Hence the second cause of garbage pollution: improper waste disposal. Throwing things on the ground may eventually make the garbage reach waterways‚ clogging them up and causing other problems like
Free Recycling Waste Waste management
THERMAL INSULATION MATERIALS Thermal insulation materials are specifically designed to reduce the heat flow by limiting heat conduction‚ convection‚ radiation or all three while performing one or more of the following functions: The main function of insulation is to reduce the heat transfer‚ the insulation material must have the appropriate characteristic to slow down the transport of heat occurred by conduction‚ convection and radiation. Conduction loss in insulation is negligible. There are
Premium Building insulation materials Thermal insulation Heat transfer
Chapter 13: Material Requirements Planning Application 1: Calculating an MRP Record Item H10-A is a produced item (not purchased) with an order quantity of 80 units. Complete the rest of its MRP record using the fixed order quantity (FOQ) rule. |Item: H10-A Lot Size: FOQ=80 | |units
Premium
MATERIAL REQUIREMENTS PLANNING MRP Report produced for the EC funded project INNOREGIO: dissemination of innovation and knowledge management techniques by Dr Vassilis Moustakis Ass. Prof.‚ Director Management Systems Lab D. of Production and Management Engineering T e c h n i c a l U n i v e r s i t y o f C r e t e J A N U A R Y 2 0 0 0
Free
Why Study Materials Science at the UW A Revolutionary and Interdisciplinary Field The world is in the middle of a materials revolution. Materials science and engineering has transformed every aspect of modern living. Advances in engineered materials are crucial to the continued vitality of countless industries. Our department is at the heart of this revolution. Advances in materials have preceded almost every major technological leap since the beginning of civilization. Materials science and
Premium Materials science Engineering
SMART Materials A SMART material is a material that is affected by outside influence. Polymorph * Type of thermoplastic (can be reshaped many times). * Normally supplied in form of granules or small plastic beads. * Low fusing temperature of around 60°C. This means it can be reduced to a mouldable condition by immersion in hot water. * Once fused turns from opaque to clear. * Heating above 65°C is dangerous as it will become a sticky-adherent mass‚ similar to hot-melt glue
Premium Materials science Tensile strength Thermodynamics
σ_f=(CK_1c)/√(πa_c ) If the objective to maximize the allowable stress‚ then‚ the material indices is simply M=K_1c CES (Cambridge Engineering Selector) is utilized to plot a diagram of fracture toughness vs. Young’s modulus. In this plot‚ only material with K1c >15MPam0.5 are considered. The same plot is used to solve part b) and c). For part a)‚ material of highest K1c is to be chosen. According to the plot‚ the best material for wire ropes is low alloy steel. 2. Energy-limited design – spring
Premium Force Spring Classical mechanics