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Biomaterials Practice Questions for Exam 2 WITH Complete Solutions.
BiomaterialsPracticeQuestionsforExam2WITH 
CompleteSolutions. 
Pure Titanium was historically used as a femoral stem. The crystal structure of titanium at 
ambient temperature and pressure is close-packed hexagonal (α-Ti). At about 890°C, the 
titanium undergoes an allotropic transformation to a body-centered cubic (β) phase which 
remains stable to the melting temperature. 
a. Draw a unit cell of β-Ti. 
b. How many atoms are inside a unit cell of β-Ti? 
c. While the femoral part is typical...