SEM Images - Revision history

Advance at 17:51, 1 September 2025

2025-09-01T17:51:28Z

2025-09-01T17:50:32Z

3210 LVP

2025-06-21T19:09:28Z

2020-12-29T16:00:07Z

2020-12-29T15:51:00Z

3210 LVP

2020-12-29T14:59:23Z

2020-09-29T00:40:18Z

2020-09-29T00:38:39Z

2020-09-29T00:38:25Z

2020-09-29T00:37:48Z

← Older revision		Revision as of 17:51, 1 September 2025
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−	I briefly joined a hackerspace in Lowell, MA which has an SEM. While I was there I got a chance to test out a few products under high magnification. I would love to do more of this, but unfortunately, I no longer have access to one, so for now this will be it.	+	I briefly joined a hackerspace in Lowell, MA which has an SEM. While I was there I got a chance to test out a few products under high magnification. I would love to do more of this, but unfortunately, I no longer have access to one, so for now this will be it. One of these days, I will renew my membership and get some more photos made.

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 |-
 | [[File:SEM_3210LVP3.jpg|100px|thumb||]]
-| Here is the same sample but showing the glass underneath the top layer. Because the resin was only applied over the top of the glass with a roller, and no heat or vacuum was used, the resin did not soak into the inner layers.
+| Here is the same sample but showing the glass underneath the top layer. Because the resin was only applied quickly over the top of the glass with a roller, the resin did not soak into the inner layers.
-For best strength, the resin must soak to the inside. This can be resolved with (as mentioned) heating or vacuum. Note that vacuum isn't necessary to 'degas' but only to pull the resin into the inside of the glass.
+For best strength, the resin must soak to the inside. This can be resolved with heating, vacuum, or sufficient resin use. Note that vacuum isn't necessary to 'degas' but only to pull the resin into the inside of the glass.
 Glass type: n/a

← Older revision		Revision as of 19:09, 21 June 2025
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−	~~Images of~~ products under high magnification.	+	I briefly joined a hackerspace in Lowell, MA which has an SEM. While I was there I got a chance to test out a few products under high magnification. I would love to do more of this, but unfortunately, I no longer have access to one, so for now this will be it.

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@@ Line 1: / Line 1: @@
 Images of products under high magnification.
 ===Hull and Deck Putty===
 {|class="wikitable"

@@ Line 59: / Line 59: @@
 |-
 | [[File:SEM_3210LVP3.jpg|100px|thumb||]]
-| Here is the same sample but showing the glass underneath the top layer. Because the resin was simply applied over the top of the glass, and no heat or vacuum was used, the resin did not soak into the inner layers of the glass.
+| Here is the same sample but showing the glass underneath the top layer. Because the resin was only applied over the top of the glass with a roller, and no heat or vacuum was used, the resin did not soak into the inner layers.
-For best strength, the resin must soak to the inside. This can be resolved with (as mentioned) heating or vacuum.
+For best strength, the resin must soak to the inside. This can be resolved with (as mentioned) heating or vacuum. Note that vacuum isn't necessary to 'degas' but only to pull the resin into the inside of the glass.
 Glass type: n/a

@@ Line 46: / Line 46: @@
+|
 | 3000x
 |}

@@ Line 3: / Line 3: @@
 ===Hull and Deck Putty===
 {|class="wikitable"
-!Item
+!Image
 !Comment
-!Image
+!Zoom
 |-
-| 300x
+| [[File:SEM Hull and deck putty.jpg|100px|thumb||]]
 | A polyester product with embedded glass. Note the left edge, which is a broken edge of the putty. You can see glass fibers sticking out.
-| [[File:SEM Hull and deck putty.jpg|100px|thumb||]]
+| 200x
 |-
 |-
-| n/a
+| [[File:SEM Hull and deck putty2.jpg|100px|thumb||]]
 | Area to zoom in.
-| [[File:SEM Hull and deck putty2.jpg|100px|thumb||]]
 |-
 |-
 | 3000x
 |}
 ===Woven Roving===
 {|class="wikitable"
-!Item
+!Image
 !Comment
-!Image
+!Zoom
 |-
 | 135x
 |-
 |-
 | 480x
 |-
 |-
 | 1000x
 |-
 |-
 | 3000x
 |}

@@ Line 20: / Line 20: @@
 | Zoomed in area of previous picture. One strand of glass is visible.
 | [[File:SEM Hull and deck putty3.jpg|100px|thumb||]]
-|-
+|}
-===Woven Roving===
+Woven Roving
 {|class="wikitable"
 !Item
@@ Line 47: / Line 46: @@
+|
 | [[File:SEM Woven Roving4.jpg|100px|thumb||]]
-|-
+|}

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+}
-===Woven Roving====
+===Woven Roving===
 {|class="wikitable"
 !Item
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 |-
 | 135x
-| Threaded fiberglass. Has a checkerboard appearance. The dirt specks here may be from the glue used, or other dust. Sample should've been sprayed with air...
+| Threaded fiberglass. Has a checkerboard appearance. The dirt specks here may be from the glue used, or other dust. Sample should've been sprayed with air before putting under microscope.
 | [[File:SEM Woven Roving.jpg|100px|thumb||]]
 |-