Derive the dimension ratio c/a for regular HCP crystal. Note: Do not use the atomic packing factor.

Q: Determine the repeat distance, linear density, and packing fraction for BCC lithium, which has a…

A: Given: Lattice parameter = 0.35089nm Directions: [100],[110],[111] Interpretation: We have to…

Q: calculate the ionic attractive energy between K and O ions per mol of the material.

A: Between  K+ and O2-  ionic bond is formed. Ionic bonds are formed when positively and negatively…

Q: What kind of material would you expect to show an x-ray diffraction profile like the one shown…

A: Crystalline solids - they are well resolved and shows peak at higher intensity  Amorphous solids-…

Q: Define these properties and explain the relationship of IMF strength to each property. (a) Boiling…

A: (a) Boiling point Boiling point is the point where a matter changes its state from liquid to gas.…

Q: How do point defects influence the crystal structure and what influence does this have on…

A: Hello. Since your question has multiple parts, we will solve first question for you. If you want…

Q: 2)The cubic unit cell parameter (a) of polonium (α-Po) is 335 pm. Use the Goldschmidt correction…

A:

Q: Explain how molecular weight of a polymer can be determined by dilute viscosity measurements?

A: Polymers are composed of multiples of simpler chemical units i.e. monomers or we can say polymers…

Q: Fill in the blanks with the following choices:

A: answer -   (a) The precipitation of bulky precipitates (e.g. MgNH4PO4) traps significant amount of…

Q: n 14 ch of the following corresponds to a layer of ions unaffected by fluid motion and is separated…

A: According to Helmholtz this double layer consist of two opposite charged layers at a fixed distance…

Q: What is the distinction between matrix and dispersed phases in a composite material?

A: a composite is formed with a continuous phase called the matrix. As shown in the figure below, the…

Q: How do you explain the statement: copper can contain up to 40% Zn and still be single phase?

A:

Q: The specific gravity of Al,O3 is 3.96 g/ cm'. A ceramic part is produced by sintering alumina…

A:

Q: How can we describe a single-phase material?

A: Single phase material is the material contains only one phase .

Q: (а) Describe the relationship between the space lattice and unit cell. (b) Calculate the Miller…

A: a) A lattice is a standard design made of numerous little units known as unit cells. A unit cell is…

Q: Q#04. (a) Calculate the number of atoms per unit area in (100), (110) and (111) planes of in bcc…

A: for (100) atom present per unit area is 0.5 for (110) atom present per unit area is 1.5 unit area is…

Q: If we have more than one substance with a large difference in melting point and we want to prepare a…

A: Film is a coating substance with different materials.

Q: Consider spherical nanoparticles of  copper with diameter of 10nm and 100nm A) Calculate the total…

A:

Q: In an x-ray diffraction measurement of BCC Nb, the observed angle (2Θ) for the (211) set of planes…

A:

Q: Explain how the intensive properties of a material are reflected in the unit cell. Are all the…

A:

Q: show that the atomic packing factor for BCC is 0.68 and for HCP is 0.74.

A: The explanation is given below-

Q: The glancing angle of a Bragg reflection from a set of crystals planes separated by 128.2 pm is…

A:

Q: What is the density of nitrobenzene at 30 degree centigrade and How can you describe the viscosity…

A:

Q: a) what ‘s the solution?

A: Since you have posted multiple questions, we will solve only first question for you. If you want any…

Q: What is the temperature and length of time it takes for boron-doped graphene to diffuse into…

A:

Q: a. Compute the densities of totally crystalline and totally amorphous polyethylene terephthalate. b.…

A: Step : 1             The answer for the following questions.

Q: Determine the repeat distance, linear density, and packing fraction for FCC nickel, which has a…

A:

Q: Write TWO (2) functions of XRF in materials characterisation. (b) Appraise the sample preparation…

A: Hello. Since the question consists of multiple sub-parts, the first three sub-parts shall be solved…

Q: Determine the Miller Index of plane of the given plane in an HCP crystal? Write the negative sign if…

A: BASAL PLANES IN HCP

Q: Q/ Briefly explain how these factors affect wettability 1-the pore size 2- the surface roughness…

A: Wettability: it is an ability of a liquid to stay in contact with a solid surface.

Q: Surface atoms rearrange itself because of lack of ....., and link to .... atoms O1. Topmost Layer,…

A: The above statement is related to surface tension phenomenon.  The molecules at the surface do not…

Q: 1. Define sintering and glazing as applied in ceramics.

A: As per our guidelines I can answer only first question as you have posted multiple questions.

Q: The maximum proportion of the avalable volume that can be field with hard sphere identifes a )…

A: In crystallography, some volume of the crystal is filled by the particles (sphere) and some volume…

Q: Determine the liquidus temperature, soli- dus temperature, and freezing range for the following…

A: Solution - According to the question - Given -

Q: calculate the d and 2θ positions for the 111 plane expected in the diffraction pattern as a result…

A:

Q: How would you expect the positions of peaks in a ZnS powder X-ray diffraction pattern to compare…

A: X-RAY DIFFRACTION: X-ray diffraction is an analytical method which is used to determine the…

Q: Calculate a value for the atomic radius of a chromium atom with a coordination number of 12 given…

A: Given that the crystal lattice is a bcc-centered cubic. The volume of a unit cell in bcc can be…

Q: Please use phase diagram to explain why micro-segregation and macro-segregation happen during…

A:

Q: Vhat is Free Volume? How the free volume affects glass transition temperature?

A: Free volume in polymer chain

Q: Draw the isotactic, syndiotactic, and atactic form of polypropylene.

A: characterstics of these three polymers are as follows : Isotactic polypropylene is strong and hard…

Q: Which point defect in ionic crystal does not alter the density of the relevant solid?

A: The missing of atoms or ions in an ideal or imaginary crystal structure or lattice and the…

Q: prove that the rc/ra =0.225 for coord number 4 in ceramic crystal structur

A:

Q: Draw the direction indices [1 0 1] within a cubic unit cell

A: Answer - cubic unit cell - The simple cubic unit cell is the simplest repeating unit in a simple…

Q: Q1- Choose the correct answer for the following (Justify your answer): 1-The direction indices for…

A: The crystallographic direction indicated by the vector in above diagram has the coordinates (0,0,0)…

Q: e) A crystal has a cubic unit cell of 4.2 Å. Using a wavelength of 1.54 Å at which 20 value would…

A: