jamesp
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Member since October 2012
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Post by jamesp on Jun 18, 2018 9:37:23 GMT -5
hummingbirdstonesYou stand very correct. No doubt entrapped moisture blew the glass and opal to pieces.  
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Post by MsAli on Jun 18, 2018 14:37:56 GMT -5
Well that didn't go as planned
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Post by 1dave on Jun 18, 2018 15:39:10 GMT -5
Well that didn't go as planned Yes, it did. Water to steam expands by 2,000%. |
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Post by MsAli on Jun 18, 2018 15:55:41 GMT -5
Well that didn't go as planned Yes, it did. Water to steam expands by 2,000%. Well if thats what he was trying to accomplish  |
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jamesp
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Post by jamesp on Jun 18, 2018 16:21:35 GMT -5
Yes, it did. Water to steam expands by 2,000%. Well if thats what he was trying to accomplish  |
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jamesp
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Post by jamesp on Jun 18, 2018 16:47:10 GMT -5
Yes, it did. Water to steam expands by 2,000%. Well if thats what he was trying to accomplish I did succeed in making two fine melt bricks smarty pants nanna nanna poo poo    |
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jamesp
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Member since October 2012
Posts: 36,611
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Post by jamesp on Jun 18, 2018 16:48:44 GMT -5
And more bricks to come   |
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Post by MsAli on Jun 18, 2018 16:57:26 GMT -5
Well if thats what he was trying to accomplish I did succeed in making two fine melt bricks smarty pants nanna nanna poo poo Well duh, those you have down already Something new now-step your game up  |
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jamesp
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Member since October 2012
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Post by jamesp on Jun 18, 2018 17:29:55 GMT -5
I did succeed in making two fine melt bricks smarty pants nanna nanna poo poo Well duh, those you have down already Something new now-step your game up Ha not, I did those with the opal last night. Along with 2 dozen pendants. I did 8 allisondays of work in 2 hours. |
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Post by fernwood on Jun 18, 2018 18:20:23 GMT -5
So, now the scientist in you needs to figure out what to do. Have an idea of how you are going to do it. Simple chemistry and an understanding of water evaporation rate in rocks when heat is applied. Also the bonding of different materials, which have different melting points.
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zarguy
fully equipped rock polisher
Cedar City, Utah - rockhound heaven!
Member since December 2005
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Post by zarguy on Jun 18, 2018 18:41:08 GMT -5
James, What if you pre-bake the opal in a toaster oven before firing? Will that eliminate the water? Lynn
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Post by MsAli on Jun 18, 2018 18:59:24 GMT -5
Well duh, those you have down already Something new now-step your game up  Ha not, I did those with the opal last night. Along with 2 dozen pendants. I did 8 allisondays of work in 2 hours. You only get to play with your glass all day because of retirement  |
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Post by hummingbirdstones on Jun 18, 2018 19:55:07 GMT -5
hummingbirdstones You stand very correct. No doubt entrapped moisture blew the glass and opal to pieces. Well, hell, I was kind of hoping the Welo would survive. Guess even hydrophane has enough water in it to 'splode real good. Geez, that really did a number on it. |
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jamesp
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Post by jamesp on Jun 19, 2018 5:01:19 GMT -5
Ha not, I did those with the opal last night. Along with 2 dozen pendants. I did 8 allisondays of work in 2 hours. You only get to play with your glass all day because of retirement Thinking about your resin castings and how those little opals would look so cool in them. Or crushed pretty glass ? Yes, me retired alright. Yesterday was a fine retirement day, a hot 95F date with just me and Bowlina. 8000 pounds of 300 pound steel bowls. With wife managing from chair, grrrr. Today stacking them. Tomorrows building them.   |
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jamesp
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Post by jamesp on Jun 19, 2018 5:21:25 GMT -5
So, now the scientist in you needs to figure out what to do. Have an idea of how you are going to do it. Simple chemistry and an understanding of water evaporation rate in rocks when heat is applied. Also the bonding of different materials, which have different melting points. Looks like zarguy has the next step figured well. I will put some opals in the small kiln and maintain 200F(below boiling point) for a few days. Must not exceed 212F. Same way I heat treated wet coral chunks before hitting it w/600F. 200F for days to dry it out. Otherwise expect fractures/explosions - every time. fernwood, opal does have a very similar coefficient of expansion to glass. That is the other issue when melting dissimilar materials in glass. But it usually takes moisture to do such violent damage to glass. No doubt the opal has moisture in it as hummingbirdstones guaranteed. BB sized glassy almandine garnets did the best so far, the glass only had a few small fractures. Smaller almandines may have been a success. Small silicon carbide 60 grit exploded glass too, certain that SiC has COE of only 2 so it did not stretch with the glass = boom crackle You can use COE 90 frit in COE 96 glass if you do not exceed 25% surface area. Glass COE's vary from 33 for Pyrex(hard glass) to 130 for Japanese Satake(soft) glass. Mixing COE = disaster every time |
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jamesp
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Post by jamesp on Jun 19, 2018 5:26:40 GMT -5
hummingbirdstones You stand very correct. No doubt entrapped moisture blew the glass and opal to pieces. Well, hell, I was kind of hoping the Welo would survive. Guess even hydrophane has enough water in it to 'splode real good. Geez, that really did a number on it. Thanks for the well wishes Robin.  |
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Post by MsAli on Jun 19, 2018 7:53:54 GMT -5
I might just have to get some to use in the resin
At $19.00 it may be worth it
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jamesp
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Post by jamesp on Jun 19, 2018 8:25:35 GMT -5
I might just have to get some to use in the resin At $19.00 it may be worth it Wait on these. If I can not dry them out for use in glass I will chunk them. I'll send them to you. Opal smalls have been glued together and cut into gems. |
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Post by MsAli on Jun 19, 2018 9:15:54 GMT -5
I might just have to get some to use in the resin At $19.00 it may be worth it Wait on these. If I can not dry them out for use in glass I will chunk them. I'll send them to you. Opal smalls have been glued together and cut into gems. Sounds like a plan  |
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jamesp
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Member since October 2012
Posts: 36,611
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Post by jamesp on Jun 21, 2018 4:39:47 GMT -5
radio Arlen makes a fine ring out of slag glass he found in Missouri glass artist's shop 
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