Assignment_2_1-1 - Introduction to Materials Science and...

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Introduction to Materials Science and Engineering Assignment – University of Arkansas Introduction to Materials Science and Engineering (SP 2010) Home Work - # 2 for Chapter 3 Due date (day) - 11:00 pm on January 28, 2010 (Thursday) Mode of submission - through University Black Board * * ( https://courses.uark.edu/webct ) Name of student and ID# Vikash Kumar Mishra 010535322 Honor Pledge I Vikash kumar mishra hereby acknowledge that the answers in this examination are of my sole knowledge and understanding. Section-I 1. In class, we discussed polymorphism of Iron and ZrO 2 . Discuss polymorphism of any one material other than Iron and ZrO 2 and discuss their application. Explaining the application with figures is encouraged. Also, please provide appropriate references for sources of information. (Marks 15) Ans . Carbon is one the most important element naturally as well as for the human application. The allotropy in the pure elements arisses due to the different crystal structure in the same element. (It is same as polymorphism for compounds) Here are the eight allotropes of the carbon. Diamond It is hardest naturally known material. It is tetrahedrally bonded carbon atom having face-centred cubic lattice. Transparent crystal due to its hardeness it is used
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Assignment_2_1-1 - Introduction to Materials Science and...

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