6 Define the reciprocal lattice and the Ewald sphere. Find the reciprocal vectors for (210) and...
A1 The primitive lattice vectors of a 2-dimensional lattice where and are unit vectors along the horizontal and vertical, respectively. Sketch this lattice, including on your sketch the lattice points, primitive vectors, and primitive unit cell ax and p2 (a/2)( are p Write down an expression for the conventional lattice vectors, and state the number of lattice points in a conventional unit cell Draw conventional lattice vectors on your sketch 6 Marks A2 m) atoms at each site, the dispersion...
plz answer both 1. In the diagram showing the unit cell, what are the vectors for points A, B, and C. Note: use the correct notations for writing a direction vector. upying each of the lattice sites. Draw a clear diagram Gold has face centered cubic lattice with one atom occ showing the unit cell and find its APF ifrAu = 0.144 nm. 2. 1. In the diagram showing the unit cell, what are the vectors for points A, B,...
3.2. Refer to Figures 3.3 and 3.4, which show the same arrangement of lattice points. The lattice constants a, b, and y are defined for the primitive cell in Figure 3.3. For the specific values of a, b, and y illustrated, the double cell shown in Figure 3.4 is a parallelogram cell. Find the relationship between a b, and y, defined for a conventional primitive cell, that ensures that it will be possible to define a double cell that is...
and 41.3 2. (1) For K-ray diffraction spectra of silicon 20 value of main two peaks was 0 28.45 lwith CuKa 1 source (1.54056 A). Lattice constant is 5.431 A for silicon Find the plane each peak indicatio. interplanar spacing and the number of atom/ cm2 (2) Visualise the plane at 28.46° above and draw 2) reciprocal lattice, of the plane with (31) plane. Then define a Brillouin zone and 41.3 2. (1) For K-ray diffraction spectra of silicon 20...
4 The following table shows possible diffracted peaks taken from cubic crystals. Insert the type of crystals (simple, bcc, fcc, base centered diamond, or hcp) in (a) (e) and derive the extinction rule for a body centered cubic cell containing two atoms at 000 and 1/21/21/2 (b) (c) (d) (e) (a) 20-0° hk 100 110 hk 2 100 00-2 10-1 3 200 210 211 10-2 220 300,22 310 311 222 320 321 1-0 103 200 11-2 20-1 00-4 20-2 10-4...
Determine the repeat distance, linear density, and packing fraction for BCC lithium, which has a lattice parameter of 0.35089 nm, in the [100], [110], and [111]directions. Which of these directions is close-packed?
Suggest a composition for the halogen compound whose mass spectrum is shown below and assign the labeled peaks. 127 100 173 160 158 162 25 48 TITTHTT 160 170 91 208 79 35 160 173 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 m/z 127 100 173 160 158 162 25 48 TITTHTT 160 170 91 208 79 35 160 173 30 40 50 60 70 80 90 100...
Niobium (Nb) has the BCC crystal with a lattice parameter a 0.3294 nm. Find the planar concentrations as the number of atoms per nm2 of the (100), (110) and (111) planes. Which plane has the most concentration of atoms per unit area? Sometimes the number of atoms per unit area nsurface on the surface of a crystal is estimated by using the relation nsurface - nbulk2/3 where nbulk is the concentration of atoms in the bulk. Compare nsurface values with...
eBook Video Consider the following data for two variables, z and y. i 135 110 130 145 175 160 120 i 145 100 120 120 130 130 110 a. Consider the four scatter diagrams below. 1. 120 100 80 " " 60 40 20 110-120 130 149-150 160 170 2. 120 100 80 60 40 20 110-120-130 140 150 160 170 3. 120 100 80 60 40 20 110一一120一一130 -149 130-100-170 120 100 80 60 40 20 130-140-150一一160一一1zo___ 110 120...
6. Shown in Figure 6(a) is the magnetization eurve of a DC machine at om 200 rad/s. Find the speed wm when the machine is configured as a shunt connection motor as shown in Figure 6(b) with a torque Tn 100 Nm added, and calculate the power developed by the motor. 15 points) Ea(v) 120 100-- ahn = 200 rad/s =0.2 Ω 8o - 100 n L.a Vin 100 v 60 40 20 Figure 6 6. Shown in Figure 6(a)...