Assignment 4 - ( % ) ) 2.144 51.3 2.215 74.2 (a ) Compute...

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1 of 2 FACULTY OF ENGINEERING AND APPLIED SCIENCE ENGR 4250 - Advanced Materials Engineering Instructor: Dr. Ali Keshavarz TA: Maryam Talimi ASSIGNMENT # Due Date: Thursday, March 10, 2011 by NOON. Please submit your assignment with this cover page by noon to drop-box #3 located on ground floor OPG Building. Question 1 2 Total Mark NAME: ID: 4
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2 of 2 Chapter 14 Q1: The density and associated percent crystallinity for two polytetrafluoroethylene materials are as follows: ρ ( g/cm 3 crystallinity
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Unformatted text preview: ( % ) ) 2.144 51.3 2.215 74.2 (a ) Compute the densities of totally crystalline and totally amorphous polytetrafluoroethylene. (b ) Determine the percent crystallinity of a specimen having a density of 2.26 g/cm 3 . Chapter 15 Q4: Briefly explain how each of the following influences the tensile or yield strength of a semicrystalline polymer and why: (a) Molecular weight (b) Degree of crystallinity (c) Deformation by drawing (d) Annealing of an undeformed material ....
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Assignment 4 - ( % ) ) 2.144 51.3 2.215 74.2 (a ) Compute...

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