Draw a picture for what it means for a crystal lattice to be fcc, bcc, or...

Draw a picture for what it means for a crystal lattice to be fcc, bcc, or hcp. Which is spatially least efficient; i.e. which pacts the least atoms per volume of the three?

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genius_generous answered 1 year ago

Show that the reciprocal space of the BCC lattice forms an FCC lattice. (Please explain every...

Show that the reciprocal space of the BCC lattice forms an FCC lattice. (Please explain every step)

9. Draw a picture of the following solid structures: a) bcc b) fcc c) simple cubic...

9. Draw a picture of the following solid structures: a) bcc b) fcc c) simple cubic In each, determine the coordination number of a sphere in each of them. Note that this is an Inorganic Chemistry subject. Please answer in an organized matter. Use a legible handwriting so that the answers can be understood. Thanks in advance!

Iron can exist in several crystal structures including BCC and FCC. Given the radius of iron...

Iron can exist in several crystal structures including BCC and FCC. Given the radius of iron is 126 pm for iron for the following conditions and draw the directions and/or planes: Calculate the planar atom density for the following: BCC lattice structure on (101) FCC lattice structure on (101) BCC lattice structure on (010) FCC lattice structure on (010)

5. Explain how density is affected by crystal shape, i.e., BCC or FCC. 6. Why would...

5. Explain how density is affected by crystal shape, i.e., BCC or FCC. 6. Why would you temper material such as steel? If not tempered, how does that influence its likely failure, what will happen? 7. What does a TTT diagram presentation, explain how it is used to determine the material property after cooling. 8. What are the advantages and disadvantages of case hardening and Nitriding?

The densest plane and direction in BCC and FCC structure

A single crystal of a metal that has the FCC crystal structure is oriented such that...

A single crystal of a metal that has the FCC crystal structure is oriented such that a tensile stress is applied parallel to the [110] direction. The critical resolved shear stress for this material is 1.75 MPa. 1) Calculate the magnitude of applied stress necessary to cause slip to occur on the (111) plane in the (1-10) direction. 2) Calculate the magnitude of applied stress necessary to cause slip to occur on the (111) plane in the (10-1)direction. 3) Which...

(a) What is the difference between atomic structure and crystal structure (b) Sketch the BCC and...

(a) What is the difference between atomic structure and crystal structure (b) Sketch the BCC and the FCC unit cells and show that the atomic packing factor for a BCC unit cell is 0.68. (c) Molybdenum has a BCC unit cell, has an atomic radius of 0.1363 nm, and an atomic weight of 95.94 g mol. Compute its theoretical density and compare your answer with its experimentally measured density of 10.22 g cm³. The Avogadro’s number is 6.023x1023 atoms mol-...

The lattice parameters of a BCC metal is 3.1468 Å. Calculate: (a) Interplanar spacing and the...

The lattice parameters of a BCC metal is 3.1468 Å. Calculate: (a) Interplanar spacing and the size of Burgers vector for slip system (111)[1 1̅ 0]. (b) Interplanar spacing and the size of Burgers vector for slip system (101)[111̅]. (c) What is the ratio between the shear stress required for slip for the two systems ( ?(111)[1 1̅ 0] / ?(101)[111̅] )? Assume that k=2.

3. In an FCC lattice, the dispersion relation of phonons may be taken to be identical...

3. In an FCC lattice, the dispersion relation of phonons may be taken to be identical to the 1-D model, with equilibrium separation a being equal to the distance between close packed nearest neighbours. Calculate the force constant of gold. Given atomic weight = 197 g mol−1, and density = 1.93 × 10^4 kg m^−3. The speed of sound in gold = 3.24 × 10^3 m s^−1.

explain the following: a. what is lattice, basis, and crystal? explain the difference of them b....

explain the following: a. what is lattice, basis, and crystal? explain the difference of them b. bravais lattice and non bravais? explain and give example c. primitive vactors? d. brillouine zone? why we must study brillouine zone?

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