question about X-ray diffraction and miller index
The below figure is the X-ray diffractoinresults of polyethylene
before and after drawing. Polyethylene crystal is known to have
orthorhombic structure. Please calculate the length a,b, and c of
unit cell for x,y, and z axes, respectively. Calculate teh
d-spacing of crystal planes of (110),(310),(220). Estimate the
exact peak positions of crystal planes of (110), (310), (22)
according to Bragg's law (The wave length of X-ray is
0.154nm)
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question about X-ray diffraction and miller index
The below figure is the X-ray diffractoinresults of polyethylene...
question about XRD and miller index how to solve question number 7?? 4. (1) Describe the...
question about XRD and miller index
how to solve question number 7??
4. (1) Describe the purpose of using a tire code. Explain type and structure of the tire code. Also explain how to improve the adhesion between rubber and tire code and why it is important. [20] (2) Conventional tires are usually composited with carbon black (CB) particles. Explain why the size of CB particles and network structure of CB particles are important to improve the mechanical properties of...
X-Ray Diffraction (XRD) is a wonderful tool for characterizing biomaterials. Please answer the following questions using...
X-Ray Diffraction (XRD) is a wonderful tool for characterizing biomaterials. Please answer the following questions using the given scenarios. Provide a brief definition of Bragg's Law and describe how it is useful in XRD. b) Please briefly describe how it can be used in Biomaterials Science? c) You observe that X ray diffraction data from a crystalline material displays a prominent peak at 2Theta = 26.0 degrees and 12.93 degrees. Please provide the best guess for what crystal class this...
3-77 Figure 3-43 shows the results of an X-ray diffrac- tion experiment in the form of...
3-77 Figure 3-43 shows the results of an X-ray diffrac- tion experiment in the form of the intensity of the diffracted peak versus the 20 diffraction angle. If X-rays with a wavelength of 0.15418 nm are used, determine: Intensity ULLA mmmmmmmmmmmmm 0 10 20 30 40 50 28 Figure 3-43 XRD pattern for Problem 3-77. (a) the crystal structure of the metal; (b) the indices of the planes that produce each of the peaks; and (c) the lattice parameter of...
Diffraction is the result of radiation being scattered by a regular array of scattering centers whose...
Diffraction is the result of radiation being scattered by a regular array of scattering centers whose spacing is about the same as the wavelength of the radiation. For example, paraliel scratch lines spaced repeatedly about 1 um apart cause diffraction of visible light and we can think of crystal structures as being diffraction gratings on a subnanometer scale. The first elght planes that give x-ray diffraction peaks for aluminum are indicated in the figure below. Sketch each plane and its...
The plots below represent X-ray diffraction data of intensity vs. angle. Use the wavelength and peak...
The plots below represent X-ray diffraction data of intensity vs. angle. Use the wavelength and peak position information in the Figure to determine the lattice spacing of the materials investigated. Rank the lattice spacing of the materials measured in plots A-F, breaking ties alphabetically. (A) 2 = 2 nm (D) 1= 4 nm 12.5° 12.5° 25° 25° -20 -10 30 -30 -20 -10 0 10 20 30 (B) 2= 4 nm (E) 2= 3 nm 8.35° 8.35° m 16.7° m...
6. The figure below shows data obtained from the X-ray diffraction test of a metal. Determine...
6. The figure below shows data obtained from the X-ray diffraction test of a metal. Determine the planes that represent the peaks in this figure. (-1.54 A° and a -3.16524 A°). 2010!) 100000 80000 ? 60000 C 40000 20000 20 30 40 50 60 70 80 2 Theta
o adjacent and parallel planes of atoms(Gie. The magnitude of the distance between two adjacent and...
o adjacent and parallel planes of atoms(Gie. The magnitude of the distance between two adjacent and parn lanar spacing dhkl, is a function of the Miller indices and the interp crystal whose lattice parameter is a (unit cell edge length), the relation araters e relation is as follows: ( For BCC iron compute the interplanar spacing for the (220) set of planes (i) Compute the diffraction angle for the (220) set of planes using Brag's low Given for BCC iron:...
Please show calculations! Name: Matric No: Question 1 (a) Flat-plate X-ray diffraction pattern of a polytetrafluoroethylene...
Please show calculations!
Name: Matric No: Question 1 (a) Flat-plate X-ray diffraction pattern of a polytetrafluoroethylene was obtained by using CuKu radiation (A 0.1542 nm). Calculate the theoretical density of a polytetrafluoroethylene crystal. Given that it is a triclinic crystal, with a-b-1.768 nm, and c-0.554 nm. A unit cell consists of 13 tetrafluoroethylene repeat units, the angles between planes are a B 90, and y 119.3, Use equation: Vabc (1-cos a - cos B-cos) +2 (cosa cosp cosy)t (b) In...
question about XRD and miller index
how to solve question number 7??
4. (1) Describe the purpose of using a tire code. Explain type and structure of the tire code. Also explain how to improve the adhesion between rubber and tire code and why it is important. [20] (2) Conventional tires are usually composited with carbon black (CB) particles. Explain why the size of CB particles and network structure of CB particles are important to improve the mechanical properties of...
X-Ray Diffraction (XRD) is a wonderful tool for characterizing biomaterials. Please answer the following questions using the given scenarios. Provide a brief definition of Bragg's Law and describe how it is useful in XRD. b) Please briefly describe how it can be used in Biomaterials Science? c) You observe that X ray diffraction data from a crystalline material displays a prominent peak at 2Theta = 26.0 degrees and 12.93 degrees. Please provide the best guess for what crystal class this...
3-77 Figure 3-43 shows the results of an X-ray diffrac- tion experiment in the form of the intensity of the diffracted peak versus the 20 diffraction angle. If X-rays with a wavelength of 0.15418 nm are used, determine: Intensity ULLA mmmmmmmmmmmmm 0 10 20 30 40 50 28 Figure 3-43 XRD pattern for Problem 3-77. (a) the crystal structure of the metal; (b) the indices of the planes that produce each of the peaks; and (c) the lattice parameter of...
Diffraction is the result of radiation being scattered by a regular array of scattering centers whose spacing is about the same as the wavelength of the radiation. For example, paraliel scratch lines spaced repeatedly about 1 um apart cause diffraction of visible light and we can think of crystal structures as being diffraction gratings on a subnanometer scale. The first elght planes that give x-ray diffraction peaks for aluminum are indicated in the figure below. Sketch each plane and its...
The plots below represent X-ray diffraction data of intensity vs. angle. Use the wavelength and peak position information in the Figure to determine the lattice spacing of the materials investigated. Rank the lattice spacing of the materials measured in plots A-F, breaking ties alphabetically. (A) 2 = 2 nm (D) 1= 4 nm 12.5° 12.5° 25° 25° -20 -10 30 -30 -20 -10 0 10 20 30 (B) 2= 4 nm (E) 2= 3 nm 8.35° 8.35° m 16.7° m...
6. The figure below shows data obtained from the X-ray diffraction test of a metal. Determine the planes that represent the peaks in this figure. (-1.54 A° and a -3.16524 A°). 2010!) 100000 80000 ? 60000 C 40000 20000 20 30 40 50 60 70 80 2 Theta
o adjacent and parallel planes of atoms(Gie. The magnitude of the distance between two adjacent and parn lanar spacing dhkl, is a function of the Miller indices and the interp crystal whose lattice parameter is a (unit cell edge length), the relation araters e relation is as follows: ( For BCC iron compute the interplanar spacing for the (220) set of planes (i) Compute the diffraction angle for the (220) set of planes using Brag's low Given for BCC iron:...
Please show calculations!
Name: Matric No: Question 1 (a) Flat-plate X-ray diffraction pattern of a polytetrafluoroethylene was obtained by using CuKu radiation (A 0.1542 nm). Calculate the theoretical density of a polytetrafluoroethylene crystal. Given that it is a triclinic crystal, with a-b-1.768 nm, and c-0.554 nm. A unit cell consists of 13 tetrafluoroethylene repeat units, the angles between planes are a B 90, and y 119.3, Use equation: Vabc (1-cos a - cos B-cos) +2 (cosa cosp cosy)t (b) In...
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