1
answer
0
watching
67
views
11 Nov 2019
5. The engineering staff brings a failed part and wants you to identify the metal. You submit the sample for energy dispersive spectroscopy and find out that it is mainly titanium. However, you remember from your MSE class that this technique only looks at inner electrons and the material could also be TiO2 or TiC, so you submit it for x-ray diffraction using Cu Ka radiation (λ= 1.5406 angstroms). The d spacings for the four most intense peaks, which were indexed as the following planes: (011), (010), (002), and (112), were respectively 2.243, 2.555,2.343, and 1.248 angstroms. a) Calculate the 2Πvalues for the four most intense peaks. b) What are the lattice parameters if the part has a hexagonal crystal structure? c) What theoretical density do you calculate for this material? Why?
5. The engineering staff brings a failed part and wants you to identify the metal. You submit the sample for energy dispersive spectroscopy and find out that it is mainly titanium. However, you remember from your MSE class that this technique only looks at inner electrons and the material could also be TiO2 or TiC, so you submit it for x-ray diffraction using Cu Ka radiation (λ= 1.5406 angstroms). The d spacings for the four most intense peaks, which were indexed as the following planes: (011), (010), (002), and (112), were respectively 2.243, 2.555,2.343, and 1.248 angstroms. a) Calculate the 2Πvalues for the four most intense peaks. b) What are the lattice parameters if the part has a hexagonal crystal structure? c) What theoretical density do you calculate for this material? Why?
Deanna HettingerLv2
11 Nov 2019