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glaze test for gibby's wild rose tenmoku, cone 6, ox.

updated mon 11 feb 02

 

Alisa og Claus Clausen on sun 10 feb 02


Glaze test for: Gibby's Wild Rose Tenmoku, cone 6, ox.

Source: 20 May 00 CM
Credited to: Ian MacMillian

All tests fired on white, iron flecked, mid-range stoneware.
Fired to cone 6 (1220c) in oxidation.

Firing ramp:
100c (212f) per hour to 600c (1112f)
150c (302f) per hour to 1100c (2012f)
100c per hour to 1220c (2228f)
15 - 30 minute soak depending on matts and glosses used.
cool down 100c per hour to 900c.
Natural cool down to 150c (approximately 15 hours)

Recipe:
9.5 Lithium Carb.
9.5 Bone Ash
55.7 Nepheline Syenite
15.8 Kaolin
9.5 RIO

Note:
All raw materials measured up or down to nearest whole decimal.
Oxides used on percent basis to a 100 gram batch of glaze.

Substitutions:
None

Resulted in:
Red Brown, breaking black, smooth gloss tenmoku glaze. Much information in
archives pertaining to this glaze.
Very marked black edges on test tile.

Regards from Alisa in Denmark

Ed Kraft on sun 10 feb 02


I have been using this glaze for awhile now and I would describe my results
a little differently.
Take a look and see what you think.
www.eartharrangements.com/img0032.htm
www.eartharrangements.com/Amphora.htm

The main difference is in the firing. I fire with propane. The other
difference is that my kiln cools down faster than your firing schedule
indicates and I don't soak.

Wish you could post a photo of your results to compare. Ed

Earth Arrangements
2109 39th St
Bellingham, WA 98226
360 734- 6839
eartharr@msn.com
www.eartharrangements.com



----- Original Message -----
From: "Alisa og Claus Clausen"
To:
Sent: Sunday, February 10, 2002 7:35 AM
Subject: Glaze test for Gibby's Wild Rose Tenmoku, cone 6, ox.


> Glaze test for: Gibby's Wild Rose Tenmoku, cone 6, ox.
>
> Source: 20 May 00 CM
> Credited to: Ian MacMillian
>
> All tests fired on white, iron flecked, mid-range stoneware.
> Fired to cone 6 (1220c) in oxidation.
>
> Firing ramp:
> 100c (212f) per hour to 600c (1112f)
> 150c (302f) per hour to 1100c (2012f)
> 100c per hour to 1220c (2228f)
> 15 - 30 minute soak depending on matts and glosses used.
> cool down 100c per hour to 900c.
> Natural cool down to 150c (approximately 15 hours)
>
> Recipe:
> 9.5 Lithium Carb.
> 9.5 Bone Ash
> 55.7 Nepheline Syenite
> 15.8 Kaolin
> 9.5 RIO
>
> Note:
> All raw materials measured up or down to nearest whole decimal.
> Oxides used on percent basis to a 100 gram batch of glaze.
>
> Substitutions:
> None
>
> Resulted in:
> Red Brown, breaking black, smooth gloss tenmoku glaze. Much information
in
> archives pertaining to this glaze.
> Very marked black edges on test tile.
>
> Regards from Alisa in Denmark
>
>
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