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Thread: Anisotrophic or Isotrophic?
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6th Feb 2020, 12:45 PM #1New Member
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Anisotrophic or Isotrophic?
Hi everyone,
I am curious to know whether polymethyl methacrylate (PMMA) acrylic is ansiotrophic or isotrophic?
My understanding is that when the properties of a material vary with different crystallographic orientations, it is ansiotrophic and when properties of a material is the same in all directions, it is isotrophic.
Hence, PMMA consists of a network of polymer chains and depending on the processing method, is not uniformly distributed, so it is ansiotrophic?
Am I correct in my way of thinking here?
Thanks for any input and ideas
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6th Feb 2020, 03:27 PM #2Member: Blue and white apron brigade
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Is by chance a homework question? 😀
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6th Feb 2020, 03:47 PM #3Gear expert in training
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Google is your friend
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6th Feb 2020, 09:29 PM #4
It does seem to be a rather off topic question to ask especially in a METALWORK FORUM.
Grahame
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6th Feb 2020, 09:38 PM #5Gear expert in training
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Given that his only 2 posts are about PMMA and are easily answerable with a google search (yes, I tried) I am somewhat suspicious
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7th Feb 2020, 11:38 AM #6Member: Blue and white apron brigade
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This reminds me of many moons ago (35 years) when I was tutoring at Uni. I put a "tricky" electrical/physics question on the board and asked the small group of students in front of me how they could start going about finding the info they needed to answer the question. I was only expecting very basic responses like "read the text book" or go to the library (no internet back then). Stunned silence at first but then smart arsed mature aged student put his hand and said "My uncle is an electrical engineer, I'd ring him up". On reflection I thought it was a pretty good answer.
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10th Feb 2020, 07:19 PM #7Golden Member
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Another good way to get an answer to a question is to provide the wrong answer as a fact, you'll soon be corrected
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10th Feb 2020, 07:22 PM #8Gear expert in training
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10th Feb 2020, 08:10 PM #9Member: Blue and white apron brigade
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