Question

Summer 20159 Final Summer 2019 Final NAME S.5 For the phase diagram, provide the values for all TE and CE (4 points) Composition (m ADy 20 60 2800 s000 Ligudi MgA D, Liqed AD 4500 2400 MgO () Liqut Liquid 4000 Mgo 2000 as00 MgPa () 3000 1600 Mgo ( MgO 2500 ADs 1200 2000 100 (ALO) 20 40 60 Compeetion tat % AD Figure 12.23 The magnesium oxude-aluminum cxide phase diagram s5 denotes solid solutions (Adapted trom B Hased Themodynemc Assesement of the Syem d Am Ceram Soc 758 1502 (1982) Reprinted by permission of the American Ceramic Society) 5.6 In the unit cell in the figure a circle represents an iron atom, while x represents a carbon atom. (2 points) a) Name the unit cell in the figure: b) Name the material in which you expect to see it; 5.7 (2 points) (a) What is the coordination number of Cs+ in the CsCl structure? Cs+ CI- (b)What is the value of n' (Number of formulas in the unit cell)? aredues

Answer 1

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