Identification of Material Composition
The purpose of this experiment is to characterize an unknown material through
examination in a transmission electron microscope(TEM), the FEI Tecnai
Zeiss Sigma VP FEG SEM
Quick start Guide
Compiled by Greg Baty, Rick Hugo, Matthew Hughes
The manufacturers manuals for CEMNs Zeiss Sigma VP SEM and installed accessories
total well over 1,000 pages as of September 2014. Oxfor
Title and Purpose:
I leave this to you.
Lab Report 1 Guidelines
Description of core SEM components and functions
Description of imaging method in SEM
Description of methods to improve image quality
Description of control
February 6, 2017
ME 428/528 SEM Quiz 3
1) True or False: After achieving adequate focus at a high magnification, no changes to
focus should need to be made after reducing magnification.
a) True: Reducing magnification causes a working distan
February 20, 2017
ME 428/528 SEM Quiz 6
1) Examine the images below. These images were taken from the same sample, one image
at a high accelerating voltage (20 keV) and one at a low accelerating voltage (1 keV).
Indicate which image was take
March 6, 2017
ME 428/528 SEM Quiz 7
1) Low voltage operation
a. We have introduced three types of electron sources (Tungsten, LaB6, and electron filed
emission guns), which type of electron gun is most suitable for the low voltage
January 23, 2017
Student ID #
SEM Quiz 1
ME 428 Students need to give correct answers for two of the three questions.
ME 528 Students need to give correct answers for all three questions.
1) Which type of electron gun contaminates easily and
February 13, 2017
ME 428/528 SEM Quiz 4
1) One artifact that can occur during collection of an EDX spectrum is the silicon escape
peak. On the graph below, draw the silicon escape peak and the parent peak. The
sample is pure titanium.
February 27, 2017
ME 428/528 SEM Quiz 6
1. What are the basic criteria for collecting EDX spectra for quantitative analysis?
Please list total of three criteria with respect to the specimen, spectra, or SEM
- Perform ca
January 30, 2017
ME 428/528 SEM Quiz 2
1. Label the signals emitted from the different parts of the interaction volume below.
a. _ Auger electrons, inelastic
a. _ Secondary electrons, inelastic
b. _ Ba
ME 323 Sample Problem 4A
Steady state conduction through layered slabs. What is the temperature distribution
through two layers with differing thermal conductivity k?
Since the heat flux through each of two layers A and B must be the same, then b
ME323 Sample 3
T = 30 C
A square power transistor chip (plan view)
is run continuously, dissipating 5 W. The
h = 400 W/m2 K
junctions are imbedded in plastic with
thermal conductivity k = 15 W/m K.
Cooling air at 30 C is blown across the top
Example 4. A tube and shell heat exchanger (two tube passes) is used to preheat clean
process water with wastewater discharge. Clean water flows at 17.5 GPM and is heated
from 70 F to 145 F; wastewater is cooled from 210 F to 154 F during the operation.
1. The dimensionless parameter that characterizes natural convection is the
2. Natural convection occurs in heat transfer because
ME 323 Heat Transfer Name: 0 V i 7"?
Exam 2, June 9, 2014
Open book, open notes
A pipe carrying heated oil is suspended so that wind can blow across it, which cools the oil. The
question is: How much is the oil cooled in a strong, cool wind? Use the f