a)The photon energy of a CO2 laser is 0.117eV. Calculate the wavelength of the laser ( please show the equations and calculations steps). b) The graph below shows the absorption as a function of wavelength for some metals. Can/ would you use the CO2 laser to weld aluminium? Explain

Q: For case 3 in Figure 4.5 (borderline passivity), show the appearance of the potentiostatic…

A: Solution: Given Data:   To Find: To show the appearance of the potentiostatic polarization curve…

Q: Please solve a & b

A: Step 1: Step 2: Step 3: Step 4:

Q: b) The spacing between successive (100) planes in NaCl is 2.82 Å. X-ray incident upon the surface of…

A:

Q: A cell culture is covered with a 1 cm sheet of Lucite (density=1.19 g/cm^3). What thickness of lead…

A: Given:The thickness of the Lucite, The density of the Lucite, The energy of the beta rays,

Q: prove atomic packing factor for fcc is .74

A:

Q: 1kV-30kV in a scanning electron microscope (SEM). You are asked to analyze the surface topography as…

A: Given-  Voltage 2kV, 5kV, 10kV, 20kV, or 30kV which one for bulk microstructure?

Q: briefly explain how with the help of x-ray diffraction techniques, the lattice dimensions are…

A: The wavelength of X-ray is very small, they are of the order of the atomic spacing, and because of…

Q: An e-beam welder uses a 20 kV potential to give an electron beam aimed at the metal to be welded. If…

A: voltage , V=2 kVCureent used, I=50 mA

Q: Instructions: Assign oxidation numbers for each individual atom in all of the substances below by…

A: Ox agent  Ox agent is also called as oxidizing agent and it is defined as gain of electrons and it…

Q: Calculate Miller indices for the plane and directions

A: The given planes are

Q: calculate the self-diffusivity for iron atoms diffusing through an fcc iron lattice at 1000∘C

A:

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

A: A crystalline solid shows the given X-ray diffraction pattern. The crystalline component will give…

Q: ive two examples for each crystal structure in: a.SCC b.BCC c.FCC d.HCP

A: To give two examples of each crystal structures.

Q: Explain the tremendous amount of energy associated with the strong bonds within the nucleus of the…

A: The atomic energy available in a nucleus is termed as nuclear energy. This energy is released when…

Q: A diffracted x-rays beam is observed from (311) plane of aluminum at a 29 angle of 78.3° when…

A: Given data as per the question wavelength of  x-ray used = 0.2528 nm

Q: What is the distort element?

A: Finite Element Analysis ( i.e. FEA )  is a method which involves simulation of any physical objects…

Q: The properties of material is greatly determined by the atomic bonding of the material. Depending on…

A: Introduction Material properties are highly influenced by the atomic bonding of the material. This…

Q: Describe photoelasticity?

A: Under any mechanical deformation the change in optical property of material is know as…

Q: Why is silver used as a material for electrical contacts?

A: Silver is denoted by Ag in the periodic table. The basic requirement for electrical contacts is that…

Q: 4. Poly-Si of the following structure is to be etched using a completely anisotropic dry-etch…

A: Given that :                  Remove Poly-Si at a rate = 0.1 mm/min                 Selectivity to…

Q: Calculate the RMS velocity of an 1, molecule (diatomic iodine) at 300 K. Calculate the RMS velocity…

A: Formula for VrmsVrms =3RTM

Q: Calculate Miller indices for the plane and directions

A:

Q: →Compare (100) and (111) surfaces in FCC. Which one should have a lower surface energy?

A: To compare: The (100) and (111) surfaces. Concept used: (100) surface: The fcc metal is cut parallel…

Q: When some ionic compounds dissolve, like polyatomic sodium nitrate, not all of their bonds…

A: When some ionic compounds dissolve, like polyatomic sodium nitrate, not all of their bonds…

Radiation

Radiation can be described as the energy in the form of a particular matter or electromagnetic waves traveling in the air and can be in the form of light, sound, and heat. Radiation can be detected through special instruments like X-rays. The radiation from a cooler object is less intense as compared to the radiation from hot objects.