Explain how a form of boron nitride known as hexagonal boron nitride is used as a solid lubricant. Compare this form to two forms of carbon: diamond and graphite.

Clear my choice Question 5 Iron (II) oxide (FeO) is a ceramic that has the same crystal structure as NaCi. Not yet answered Given: Marked out of R(Fe2*)= 0.087 nm and R(O2)=0.132 14.00 Calculate the lonic Packing Factor (IPF) of FeO? F Flag question Select one: O a. 0.14 O b. 0.12 Oc 0.74 O d. 0.21 O e. 0.51 O f.0.47 g 0.59 D.0.41

Calculate the linear density of atoms along then[111] direction in (a) BCC iron-atomic radii is 0.124 nm and (b) FCC nickel atomic radii is 0.125 nm.

(a)  At the atomic level, how deformation process occurs/proceeds?  (b)  If we have the same materials in two different forms as a single crystal and as a polycrystalline sample, which one would have higher internal energy?  Why? (c)  Determine miller indices for the plane shown in red.  Show your work to clarify how you came up with your answer.