280: Advanced Materials Lab

Polyethylene glycol 8000gmol data

2009-11-19T20:15:00Z

Dear Class,

Attached is the raw data for the polyethylene glycol sample we analyzed in the thermal analysis lab. When doing your data analysis, subtract the baseline heat flow from the unsubtracted heat flow since the baseline is of the empty pan. Then you compare that with your sample temperature.

For the data analysis, calculate the energy for the heat flow, should be in W/g for both melting and recrystallizing temperatures. You should be able to tell the peak position and tell what that means. Once you've melted it it's not going to melt anymore, so the opposite side is just lag.

The writeup should have the same format as the other labs. Again, I want to see the theory in the introduction in your own words along with any relevant formulas.

Since this is a short writeup, let's make this lab report due Tues at 12 noon in the folder labeled Mate 280 in the Nanomaterials Mailbox in the MSE office.

Patricia

MATE 280 TEM and EELS Lecture 8

2009-11-16T14:53:00Z

Dear Class,

Attached is the TEM and EELS lecture.

Patricia

SEM Lecture and Thermal Analysis Lab this Week

2009-11-09T08:14:00Z

Dear Class,

Attached is the SEM lecture. We will have the thermal analysis lab this week and I will send you an e-mail tomorrow about the location. It may be at UPenn, in which case we will meet at the CRF and then walk over. I'll keep you posted.

Patricia

SEM images

2009-11-06T19:34:00Z

Dear all,

Attached are the SEM images.

Patricia

MATE 280 SEM Writeup

2009-11-06T19:31:00Z

Dear all,

Some of you have e-mail accts that are over quota so the message bounced back. I will upload the images onto the blog so you can access them from there.

I made some corrections to the "intro to SEM" document, so you should follow the questions on the latest version which is attached. Also, I will attach on the blog what I think are the most representative images of what you are trying to show in each step, rather than just sending you your individual images from each group. For example, BSE_Al_03 shows the carbon tape, epoxy and aluminum while using the backscatter detector.

When writing up your lab reports, use the same format you've been using for the other lab reports. When writing the intro, you should go in depth (in your own words) about the theory and what is happening when an electron hits the sample. If it helps you can add schematics, formulas, etc.

For the data analysis section, please do not blow up the images to take up the whole page. You can easily fit several images together onto one side of a sheet of paper, number them and in your discussion (after the images) refer to those numbered images.

For your data analysis, you should be able to explain what each image is showing. IOW, how the electrons are interacting with the sample and how this gives us certain type of information. For example, why does the BSE image looks different than secondary? What does going to a lower kV do to the sample resulting in a different image than higher kV. What are the trade-offs?

After your data analysis section answer the questions that are at the end of your 'intro to SEM' document. Please number the answer according to the number of the question. You do not have to re-type the question. Then your conclusion comes after the questions.

The labs are due Wednesday 11/11 at noon in the folder in the 'nanomaterials group' mailbox in the MSE dept office.

Patricia

Intro to SEM

2009-11-03T03:37:00Z

Dear class,

Please print the "Intro to SEM" document for your lab. At the very least, read it so you know what to do. It outlines what you need to do in the lab this week.

Patricia

Thermal Analysis Lecture

2009-11-02T13:44:00Z

Dear Class,

Attached is the Thermal Analysis Lecture.

Patricia

Scanning Probe Lecture

2009-10-26T16:35:00Z

Dear Class,

Attached is the Scanning Probe Lecture.

Patricia

Data Analysis and Presentation Lecture

2009-10-26T16:29:00Z

Dear Class,

Attached is the lecture for 'Data Analysis and Presentation'.

Patricia

Test2

2009-10-07T16:57:00Z

Epon sample 2

Test3

2009-10-07T16:57:00Z

Unknown metal. Ni? no... Fe???... nope! Hint: Comet!

Test 1

2009-10-07T16:54:00Z

Epon sample 1

Nanoindentation lab

2009-10-07T16:50:00Z

Hi class,

attached you will find 3 measurement-files. Please analyze the Load-Displacement curves and discuss the following:

1.) Which materials did we test? Hint: One sample is Epon828, another sample is Epon828 with the addition of Nanodiamond. The third samples is a metal.

2.) What can you tell about their mechanical properties? How much plastic deformation and creep do we have?

Have fun!,

Ioannis

Nanoindentation lecture

2009-10-05T21:05:00Z

Dear class,

please find the Nanoindentation lecture attached.

Ioannis

Updated Syllabus

2009-10-02T13:01:00Z

Dear all,

Attached is an updated class syllabus for MATE 280.

Patricia