MSE101H1 Midterm: MSE101S_2017_INTRODUCTIONTOMATERIALSSCIENCE_E
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Permissible calculators are casio 260, sharp 520 and ti 30 only. 16: consider the following engineering stress-strain curve, and select the correct statement. Crosslinked polymers have low molecular weight and so have low melting temperatures. Secondary bonds prevent molecules from sliding past one another. Large side groups on crosslinked polymers prevent chain sliding. Covalent bonds prevent molecules from sliding past one another. Cooling to 0 c and then returning to room temperature. A crack with a sharp tip is present in the material. The stress is held for a long time at an elevated temperature (creep). Draw all planes in the { 1 1o} family of planes for a bcc iron unit cell. You may or may not need to use all the cubes. Dotted lines denote back edges of the cube. (0. 5 marks for each correct plane) please be sure to label your axes.
