Comments for Hammill & Gillespie http://www.hamgil.com Specialty Clay & Minerals Mon, 29 Aug 2011 11:51:36 +0000 hourly 1 http://wordpress.org/?v=3.2.1 Comment on Plasticity and the Origin of Clay by Clay plasticity | Hbeletric http://www.hamgil.com/plasticity-and-tha-origin-of-clay#comment-347 Clay plasticity | Hbeletric Mon, 29 Aug 2011 11:51:36 +0000 http://techacs.com/work/hamgil/demo#comment-347 [...] Plasticity and the origin of clay | Hammill & GillespieWhen we add the water of plasticity to the dry clay, moisture between the flat plates creates a surface tension attraction so that the particles do not … [...] [...] Plasticity and the origin of clay | Hammill & GillespieWhen we add the water of plasticity to the dry clay, moisture between the flat plates creates a surface tension attraction so that the particles do not … [...]

]]> Comment on Glaze Crazing by admin http://www.hamgil.com/crazing#comment-28 admin Thu, 21 Apr 2011 15:41:53 +0000 http://www.hamgil.com/?p=1036#comment-28 Student, The 8 hour hold at 150 degrees F. is not necessary. Put the pieces in the kiln "bone dry" if you have a computer controlled kiln set it to the SLOW setting. It should take 12 hours to 14 hours to reach cone 6. If your kiln has turn up switches set the LOW setting and run that for 3 hours, then run the MEDIUM setting for 5 hours before turning the setting to HIGH. Since your pots are small and thin this firing cycle will not cause them to blow up or crack. Mechanical and chemical water from the clay is driven off at a slow rate. Student,

The 8 hour hold at 150 degrees F. is not necessary. Put the pieces in the kiln “bone dry” if you have a computer controlled kiln set it to the SLOW setting. It should take 12 hours to 14 hours to reach cone 6. If your kiln has turn up switches set the LOW setting and run that for 3 hours, then run the MEDIUM setting for 5 hours before turning the setting to HIGH.

Since your pots are small and thin this firing cycle will not cause them to blow up or crack. Mechanical and chemical water from the clay is driven off at a slow rate.

]]> Comment on Fast Firing Bisque by admin http://www.hamgil.com/fast-firing-bisque#comment-27 admin Thu, 21 Apr 2011 14:00:21 +0000 http://www.hammgill.com/?p=756#comment-27 Student, The 8 hour hold at 150 degrees F. is not necessary. Put the pieces in the kiln "bone dry" if you have a computer controlled kiln set it to the SLOW setting. It should take 12 hours to 14 hours to reach cone 6. If your kiln has turn up switches set the LOW setting and run that for 3 hours, then run the MEDIUM setting for 5 hours before turning the setting to HIGH. Since your pots are small and thin this firing cycle will not cause them to blow up or crack. Mechanical and chemical water from the clay is driven off at a slow rate. Student,

The 8 hour hold at 150 degrees F. is not necessary. Put the pieces in the kiln “bone dry” if you have a computer controlled kiln set it to the SLOW setting. It should take 12 hours to 14 hours to reach cone 6. If your kiln has turn up switches set the LOW setting and run that for 3 hours, then run the MEDIUM setting for 5 hours before turning the setting to HIGH.

Since your pots are small and thin this firing cycle will not cause them to blow up or crack. Mechanical and chemical water from the clay is driven off at a slow rate.

]]> Comment on Fast Firing Bisque by Satpreet http://www.hamgil.com/fast-firing-bisque#comment-20 Satpreet Wed, 06 Apr 2011 19:23:13 +0000 http://www.hammgill.com/?p=756#comment-20 Hi! I am a student who has been slipcasting tiny (one inch diameter) bowls that are very, very thin. I am trying to get them fired as quickly as possible in an electric kiln. I once-fire them to Cone 6 and was just wondering how fast I could fire them without getting damage? I usually put an 8 hour hold on the pieces at about 150 degrees F, but is that necessary? Can I shorten that hold? Hi! I am a student who has been slipcasting tiny (one inch diameter) bowls that are very, very thin. I am trying to get them fired as quickly as possible in an electric kiln. I once-fire them to Cone 6 and was just wondering how fast I could fire them without getting damage? I usually put an 8 hour hold on the pieces at about 150 degrees F, but is that necessary? Can I shorten that hold?

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