280: Advanced Materials Lab

Survey

2006-12-07T14:28:00Z

The survey is attached, the only reason for this survey is to make this class better; so your help is really needed, because you can see things from a very different point that we can miss. You can email me the completed survey or if you don't want your name to be on it, you can either leave it on my mailbox (lebow344-nanomaterials group), or bring it to class...

SEM LAB

2006-11-19T18:22:00Z

Lab data is attached.

In discussion part of your Lab report:

Put all data given and use them to illustrate and discuss what kind of information you obtained by using secondary electron imaging, backscattered electron imaging and EDX.

By comparing Se and Bse images of dollar bill, discuss how contrast is formed in both cases; and what kind of information you get.

Due date: Please bring your lab reports to classroom on 11/27/06

Lecture - Porosimetry

2006-11-19T18:01:00Z

Please see the attachment.

SEM Lab PPT

2006-11-17T21:28:00Z

Attached.

Lecture - Microscopy

2006-11-13T03:10:00Z

Please see the attachment.

Lecture - Thermal Analysis

2006-11-06T16:10:00Z

Please see the attachment

Extension of time to return the Nanoindentation lab reports

2006-10-30T17:06:00Z

You can bring your nanoindentation lab reports next Monday (6th of Nov) to the class.

Nanoindentation Lab Data

2006-10-25T13:50:00Z

Feel free to email Adrian (gurga@drexel.edu) about your nanoindentation questions.

Group 1 studied polycrystalline silicon carbide.

Group 2 studied a composite of kynar and carbon nanotubes.

Group 3 studied a composite of polyvinylidene fluoride and carbon nanotubes.

Group 4 and 5 studied a coating of deposited aluminum oxide.

Group 6 studied single crystal silicon carbide.

Group 7 studied a coating of aluminum oxide deposited in the presence of nanodiamonds.

Group 8 studied a composite of polyacryl nitride and nanodiamond.

Group 9 studied a coating of carbide-derived carbon on silicon carbide.

Group 1 / Nanoindentation

Group 2 / Nanoindentation

Group 3 / Nanoindentation

Group 4-5 / Nanoindentation

Group 6 / Nanoindentation

Group 7 / Nanoindentation

Group 8 / Nanoindentation

Group 9: data collection error - please select and use the data of any other group (mention in your lab report)

Message from Adrian:

Students only have to report on their own group's data but are encouraged to compare their results to those of other groups.

The data for groups 6-9 is still being collected and should be posted sometime this weekend. If need be, please remember much of the lab report can be written without your group's data.

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The data includes a table of the machines calculated values as well as load displacement data for each indent. Remember you are expected to manually calculate hardness for one indent. Your lab report should explain the basics of indentation as well as the material your group studied with the conditions used for indentation.

When calculating hardness, you will need to calculate contact area from displacement.

For Berkovich indenters:

A ~= 24.5 * h^2

For Spherical indenters:

A ~= Pi*(2*R*h-h^2)

where A is area, h is displacement and R is radius remember to be careful with your units!

Your calculation should be within an order of magnitude of the computer's, but don't be alarmed if its not the same, the machine estimates contact area a different way.

FAQs

2006-10-24T15:15:00Z

1. I have my lab due tomm. Is there a time that it needs to be turned in by?

Anytime before 5 pm

Lecture 4 - Nanoindentation

2006-10-22T23:06:00Z

Please download the attachment

Announcements

2006-10-19T17:56:00Z

We have limited space for files in this site, in order to upload your new data I will delete the Raman and AFM data. Please make sure that you have everthing saved (you will need them for your presentations).

Unfortunately because of a problem in uploading files, I cannot put all the images that each group took. So please choose your pictures either from Set 1 or Set 2 (depends on you, whichever you think are more beautiful; or whichever fit your story the best...). In your lab report put at lease 3 images including 3D, and height section; discuss what kind of information you can extract from your AFM data.

Lab 1 reports: You can pick up your lab reports from my office (Bassone 102) on Friday (19th) between10:30-11:00; otherwise I will bring them to class on Monday

Lab 2 reports: Please include your group name (group leader name) on your report.

AFM Lab data : SET 2

2006-10-19T17:46:00Z

Material studied: surface of a very thin carbon film produced on single crystalline SiC wafer.

AFM Lab data - SET 1

2006-10-19T17:42:00Z

Material studied: surface of a very thin carbon film produced on single crystalline SiC wafer.

Group 2 (Becky) - AFM LAB data / 1

Group 2 (Becky) - AFM LAB data / 2

Group 2 (Becky) - AFM LAB data / 3

AFM Lab data - ONLY FOR Group Ramalingam

2006-10-16T22:45:00Z

Material studied: surface of a very thin carbon film produced on single crystalline SiC wafer.

1. Group 1 / AFM / cross-section

2. Group 1/AFM/3D

Lecture 3 - SPM

2006-10-13T16:22:00Z

Please download the attachment.