Scanning electron microscope, Mechanical Engineering

Assignment Help:

1- Explain the rationale of using a small WD to improve resolution.

2- In a tungsten SEM , Why does a high accelerating voltage provide the potential for higher resolution?  Why is this counterintuitive?

3- Comment on the desired coating thickness for an insulating sample where maximum resolution is required. What material/s do you suggest for coating and why?


Related Discussions:- Scanning electron microscope

Pattern practices - manufacturing processes, Pattern Practices - Manufactur...

Pattern Practices - Manufacturing processes: Pattern Practices : A pattern may be defined as a replica or fascimile model of the desired casting which, when packed or embedd

Estimate elapsed time and height , Phase 1 Initially ALL Valves A, B, C...

Phase 1 Initially ALL Valves A, B, C, D, E and F are closed.  ALL Tanks A, B, C, D, E are separated and each sealed from the atmosphere. Tank E initially has 2' of air @

Define the types of clamping device, Define the Types of Clamping Device ...

Define the Types of Clamping Device Clamping screw. Hook bolt clamp. Lever clamp.   a) Bridge clamp. b) Heel clamp. c) Swinging strap clamp. d) Hi

Thermodynamics, determine the relationships between system constants for an...

determine the relationships between system constants for an ideal gas

Evaluate the rankine efficiency, In a Rankine cycle, the steam at inlet to ...

In a Rankine cycle, the steam at inlet to turbine is saturated at a pressure of 35 bar and the exhaust pressure is 0.2 bar. Evaluate: (i) The pump work, (ii) The turb

marginal rate of technical substitution?, Assume the production function f...

Assume the production function for a rm is given by the equation Q = L √K. Graph the isoquants corresponding to Q = 10, Q = 20, and Q = 50. Do these isoquants exhibit diminishing

Thermodynemics, explain the following terms in brief:- point function and p...

explain the following terms in brief:- point function and path funtion

Handling suspect material, Q. Handling Suspect Material? • Material or ...

Q. Handling Suspect Material? • Material or items at a Supplier's facility or those received or stored in the warehouse or other construction site location that require PMI-tes

Present marketing information, Question: (a) When you are provide a de...

Question: (a) When you are provide a design brief, marketing forms an important aspect that involves researching and computing a potential opportunity to enter a market. What

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd