Barney Adams on tue 3 nov 98
Hi,
I've been playing with the Insight evaluation package and some
other software dealing with glaze calcuation. I'm not sure I'm
using it right and I know I dont grasp much of what it all means.
I entered the following recipe based on materials I have and to
try and get what this is all about.
Custer Feldspar 32.0
Whiting 15.0
Flint 22.0
OM-4 22.0
Lithium carb 6.0
Barium carb 3.0
I'm using the RO unity setting and after entering the recipe
I normailize. This adjusts the recipe fot the unity values(?).
The unity values I get are then
BaO 0.05
CaO 0.52
Li2O 0.26
MgO 0.01
KNaO 0.17
TiO2 0.01
Al2O3 0.36
SiO2 2.85
Fe2O3 0.01
The weight is 268.15 (I gather since the calculation is done this can be ignored
the Si:Al is 7.94 (I think the higher the better. Is there a book or resource th
the expansion is 7.25 (this need to match my clay body)
There are 2 limit tables for ^6 with the Insight package and I have a couple fro
refering to. As I understand the limit tables, I now match my unity values from
limit value ranges. For the above and the Orton ^3-^7
I appear to be in range for all except BaO,KnaO and Al2O3.
BaO 0.1-0.6
CaO 0.3-0.6
Li2O ?
MgO 0.1-0.2
KnaO 0.2-0.5
TiO2 ?
Al2O3 0.2-0.35
SiO2 2.5-3.5
Fe2O3 ?
I would guess that with the secondary flux of Barium carb that I would probably
glaze or is there enough silica to push satin? I take it this would not be a ver
due to the barium carb.
Am I approaching this correctly and simply need to get up to speed with a better
of the materials?
Thanks
Barney (With my head swimming)
Ron Roy on sun 8 nov 98
Hi Barney,
I will help you but am short of time these days - ask one question at a
time. As you can see I did not get all your message so start again.
Do not normalize - you lose the * which indicates which oxides (the fluxes)
are in unity - just go back under calc and do a unity calc.
I'm still using version 4 on the Mac so better tell me what version and
what platform - Win version 5?
Later, RR
>----------------------------Original message----------------------------
>Hi,
>I've been playing with the Insight evaluation package and some
>other software dealing with glaze calcuation. I'm not sure I'm
>using it right and I know I dont grasp much of what it all means.
>I entered the following recipe based on materials I have and to
>try and get what this is all about.
>
>Custer Feldspar 32.0
>Whiting 15.0
>Flint 22.0
>OM-4 22.0
>Lithium carb 6.0
>Barium carb 3.0
>
>I'm using the RO unity setting and after entering the recipe
>I normailize. This adjusts the recipe fot the unity values(?).
>The unity values I get are then
>BaO 0.05
>CaO 0.52
>Li2O 0.26
>MgO 0.01
>KNaO 0.17
>TiO2 0.01
>Al2O3 0.36
>SiO2 2.85
>Fe2O3 0.01
>
>The weight is 268.15 (I gather since the calculation is done this can be
>ignored
>the Si:Al is 7.94 (I think the higher the better. Is there a book or
>resource th
>the expansion is 7.25 (this need to match my clay body)
>There are 2 limit tables for ^6 with the Insight package and I have a
>couple fro
>refering to. As I understand the limit tables, I now match my unity
>values from
>limit value ranges. For the above and the Orton ^3-^7
>I appear to be in range for all except BaO,KnaO and Al2O3.
>BaO 0.1-0.6
>CaO 0.3-0.6
>Li2O ?
>MgO 0.1-0.2
>KnaO 0.2-0.5
>TiO2 ?
>Al2O3 0.2-0.35
>SiO2 2.5-3.5
>Fe2O3 ?
>
>I would guess that with the secondary flux of Barium carb that I would probably
>glaze or is there enough silica to push satin? I take it this would not be
>a ver
>due to the barium carb.
>
>Am I approaching this correctly and simply need to get up to speed with a
>better
>of the materials?
>
>Thanks
>
>Barney (With my head swimming)
Ron Roy
93 Pegasus Trail
Scarborough, Ontario
Canada M1G 3N8
Tel: 416-439-2621
Fax: 416-438-7849
Web page: http://digitalfire.com/education/people/ronroy.htm
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