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The source energy in XPS is:X-ray photonIn XPS, the source energy can vary and is not kept constant. True/FalseFalseWhat does the detector is XES measureX-rays photons emitted from the sampleWhich of the directions below does not fall in the <1 0 0> family?[101]Determine the miller indices of the plane in the figure below?(346)Determine the Miller indices of the two directions shown in the figure below:[201] & [111_]What is the miller indices of plane F(221)What is the Miller Indices represented by B considering that a=1, b=3, c=6(132)What is the miller indices representation for plane E(102)What is the lattice structure in the following diagramBody-Centered tetragonalWhat is the Bravais Lattice for the followingBase Centered OrthorhombicFor the unit cell shown, how many chloride ions (bigger circles) and sodium ions (smaller circles) are there per unit cell, respectively4,4The classification of crystal structures is based on atoms of same kind. True/False?trueFor the following stereographic projection:
the pole "x" correspond to:[101]What is the crystal system for the following axial lengths and angles?
Lattice parameters: c >b>a and the angles: α=β=γ=90OrthohombicPrimitive cell can only contain one atom per cell. True or false?TrueUnit cell can only contain one atom per cell. True/False?FalsePrimitive cell is always cubic. True or False?FalseDraw a circle of radius=1 for the purpose of laying out a stereographic projection. Assume that [100] points to the right, and [010] up (with [001] coming out perpendicularly out of the plane of the paper at the origin). Write down the (Cartesian) coordinates of the following points in your stereographic projection (which you can think of as a pole figure).
A (100):1,0Draw a circle of radius=1 for the purpose of laying out a stereographic projection. Assume that [100] points to the right, and [010] up (with [001] coming out perpendicularly out of the plane of the paper at the origin). Write down the (Cartesian) coordinates of the following points in your stereographic projection (which you can think of as a pole figure).
B (101):Tan(22.5), 0Draw a circle of radius=1 for the purpose of laying out a stereographic projection. Assume that [100] points to the right, and [010] up (with [001] coming out perpendicularly out of the plane of the paper at the origin). Write down the (Cartesian) coordinates of the following points in your stereographic projection (which you can think of as a pole figure).
B (101):0,0For the structure factor equation, uvw areCrystall miller indices for the planesThe diameter of the limiting sphere is:d- 4/λReciprocal means that for every set of Brag Planes of d-spacing there is a space in which there correspondsReciprocal lattice point a distant 1/d from the origin of the reciprocal spaceReciprocal Space consideration: 1/d<2/λ results from the fact that...-1<sinθ<1Reciprocal Space consideration: 1/d<2/λ, tells us thatWe cannot examine any d-spacing lower than λ/2The following is a direct space for(100)Based on the following reciprocal space, the following reflection may not show up in a diffraction experiment(300)If we decrease (or lower) the wavelength of incident radiation then...It can increase the number of planes possible for radiationThe multiplicity factor for the (111) peaks is __________ that of the (100) peaks in cubic crystals:4/3For a base centered cell, then(101) be absentBased on the FCC structure factor calculation, {012} planes provide:F=0For a body centered tetragonal structure (a=b=2A, c=3.0A) the 1st diffraction peak can be due to(011)For a body centered tetragonal structure (a=b=2A, c=3.0A) the 3rd diffraction peak can be due to(110)Powder diffraction for phase analysis requires:Powders of small particles of less than 50 microns AND random distribution of particlesPhase analysis precision is the largest (best) atNear 90 degrees for thetaThe source of error affecting precision in phase analysis is: (there are 4)Misalignment of the instrument, curved samples, displacement, and absorptionThe lattice parameter from the following experiment is calculated fromThe line intercept to zero x-axisThe following diffractometer data (expressed as 2θ) were generated from a specimen irradiated with silver (Ag) K-alpha1 radiation (wavelength=0.574 Å):
14.10°; 19.98°; 24.57°; 28.41°; 31.85°; 34.98°; 37.89°; 40.61
The crystal structure of the above materials system isBCCThe following diffractometer data (expressed as 2θ) were generated from a specimen irradiated with silver (Ag) K-alpha1 radiation (wavelength=0.574 Å):
14.10°; 19.98°; 24.57°; 28.41°; 31.85°; 34.98°; 37.89°; 40.61
The lattice constant, a is:3.31ÅThe following diffractometer data (expressed as 2θ) were generated from a specimen irradiated with silver (Ag) K-alpha1 radiation (wavelength=0.574 Å):
14.10°; 19.98°; 24.57°; 28.41°; 31.85°; 34.98°; 37.89°; 40.61
The third peak is associated with(211)At what angle θ would we find the first reflection if, instead of K-alpha radiation, we used silver L-alpha radiation (λ =4.17Å )to illuminate the specimen?63.0Residual stress maybe caused as a result of what 4 things?-Defect structure
-Plastic deformation
-Dislocations
-Non-uniform deformationResidual stress can be calculated through:Shift in Diffraction peak analysisResidual stress is the self equilibrating internal stresses existing in a free body which has no external forces or constraints acting on its boundary. True/False?TrueThese stresses must arise from causes other than applied surface tractions, i.e. they must be intrinsic to the body. True/False?trueResidual stresses are always thermal. True/False?FalseResidual Stresses can be calculated from The slope of the d2 vs. Sin(psi). True/False?FalseResidual Stresses can result from when an extermal load is applied to a body below yield point. True/False?FalseWhat 3 things can residual stress be calculated from?The slope of the line when plotting d vs. Sin2(psi), related to the shift in the peaks, and The broadening in the peaksWhat 3 things can residual stresses result from?Heterogeneous or Layered Structures, bending, and Thermal GradientFor the following relation, used in the study of diffraction profiles, delta(d)/d ismicro-strainSherrer Equation works best for powders (crystals)Less than 0.1 micronsMicrostrain is the same asPlasticity (defects,..)Residual stresses are always thermal. True/False?FalseThese stresses must arise from causes other than applied surface tractions, i.e. they must be intrinsic to the body. True/False?TrueResidual stress is the self equilibrating internal stresses existing in a free body which has no external forces or constraints acting on its boundary. True/False?TrueSEE QUIZ 11DONEWhat does 3/m mean?3 fold rotation around an axis perpendicular to the mirror plane.What crystal structure does 422 represent?Corresponds to a tetragonal structureTexture is defined as:The preferred alignment of the crystallographic orientations in a polycrystalline mediumFiber Texture is a result of what 3 things?-The individual crystals are so oriented that the same crystallographic direction [uvw] is parallel or nearly parallel to the wire axis
-Rotational symmetry: all crystal orientations about an axis are equally probable
- Rods formed by drawing, swaging, or extrusionFor texture analysis the X-ray source is traditionally oriented as:Point SourceA pole figure is measured by:Measuring the intensity of a specific peak for a crystal plane at different tilt angles and rotations.A texture component can be represented based on {hkl}<uvw> where:{hkl} is parallel to ND in the Pole figureA texture intensity of 1 corresponds to a material with:Random textureLet R correspond to a 90_ right-hand rigid body rotation about the x3-axis (or x-axis). Find the matrix of R. What Q12 in that matrix:-1What is the angle between 111 and the RD (Goss Texture)54.7What is the angle between 111 and the normal direction35.3Starting from a crystal in the standard reference orientation (otherwise known as the cube orientation, (100)[001]), what single rotation can be applied to bring the crystal into the Goss orientation (110)[001],?A rotation of 45 degrees around RD

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