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GLAÇURES
NORD-AMÉRICAINES pour Cône 6* /
page 3/3
|
(*)
: Cône 6 Orton : 1230°C équivalent
de la montre 7 (cone de Seger).
-
-
-
-
-
-
- Généralités
:
-
- Ce
petit recueil de recettes Nord-Américaines de
glaçures pour cône 6 Orton a
été édifié à partir
de documents courants dans les groupes de discussions
et dans les archives de messages parus sur internet.
L'exploitation de ces recettes en Europe
nécessite souvent des substitutions. Par
exemple, le fameux Gerstley Borate très courant
dans ces recettes qu'il faudra remplacer par des
frittes très riches en Bore et en calcium...
- En
règle générale, pour chaque
matière Nord-Américaine n'ayant pas
cours en Europe, des indications de substitutions
seront fournies soit directement dans la recette soit
par renvoi vers d'autres pages du site
documentées sur ces produits.
-
- Les
frittes utilisées sont fournies avec leur
formule de Seger, ce qui permet de les assimiler aux
frittes courantes en Europe ou de procéder
à des substitutions partielles ou globales de
la base de la glaçure indiquée. Dans
tous les cas il faudra procéder à des
calculs moléculaires en tenant compte des
produits disponibles ici.
-
- Les
notes indiquées par les auteurs ou par les
personnes ayant transmis les recettes n'ont pas
été traduites. Si ce point pose
problème, il suffira de nous signaler le
n° de recette par e-mail et nous renverrons la
traduction.
-
- Les
indications relatives à la température
de cuisson sont fournies par rapport au cône
Orton.
-
- Les
auteurs de ces recettes sont cités lorsque leur
nom figure dans les documents d'origine.
-
Gerstley
Borate :
- Certaines
recettes proposées contiennent du Gerstley
Borate, une page spéciale consacrée
à cette matière typique Nord
Américaine fournit des substitutions à
base de produits disponibles en Europe (frittes et
felspaths).
- Consulter
la page sur le Gerstley Borate
-
-
- 3ème
Partie : fiches 79 à 108 sur 108
recettes
-
-
-
79
- PINK GLAZE
|
Aspect
: shiny
|
Cône
: 6 oxidation
|
Composants
:
|
En
masse :
|
Gerstley
Borate
|
20,68
|
Néphéline
syénite
|
16,29
|
EPK
(kaolin)
|
11,34
|
Carbonate
de calcium
|
19,52
|
Silice
|
32,16
|
Colorant
pink
(Chrome-étain-calcium)
|
12,00
|
- Notes
: Vary the amount and kind of
pink stain to obtain lighter
pinks. 12% of darker pink stains
will give burgundy colors. Good
as a semi?transparent glaze when
used without colorant additions,
or with other colorants or
stains, although it may craze and
be opalescent if thick. You must
use a Chrome?Tin Pink Stain to
get a good pink,
Manganese?Alumina stains don't
work well with this glaze. Also
try direct additions of Chrome
oxide and Tin Oxide ? 5% Tin and
0.15% Chrome give a nice burgandy
red. Less chrome will give
lighter pinks. Possible Health
Hazards: Flint: free silica?wear
a NIOSH approved dust mask when
handling dry material.
- From
Richard Burkett
|
|
|
80
- FLOATING BLUE GLAZE
|
Aspect
: semi-opaque, mottled
blue
|
Cône
: 6
|
Composants
:
|
En
masse :
|
Néphéline
syénite
|
47,3
|
Gerstley
Borate
|
27,0
|
Silice
|
20,3
|
EPK
(kaolin)
|
5,4
|
Oxyde
de fer rouge
|
2,0
|
Oxyde
de cobalt
|
1,0
|
Rutile
broyé (Dioxyde de titane :
TiO2)
|
4,0
|
Colle
CMC
préparée
|
1
pte cuillere
|
Notes
: from the Chappell book
|
|
|
81
- FLOATING TEA DUST GLAZE
|
Aspect
: deep blue-black w/ mottled brown
dust
|
Cône
: 6
|
Composants
:
|
En
masse :
|
Feldspath
potassique
|
23
|
Néphéline
syénite
|
23
|
Kaolin
|
14
|
Silice
|
5
|
Carbonate
de calcium
|
10
|
Oxyde
de fer rouge
|
5
|
Dioxyde
de manganèse
|
5
|
Carbonate
de cobalt
|
5
|
Rutile
broyé (Dioxyde de titane :
TiO2)
|
5
|
Talc
|
5
|
Colle
CMC
préparée
|
1
pte cuillere
|
Notes
: MIXING: weigh ingredients very
carfully, mix in a clean jar. Premix
ontents and add distilled water,
then add 2 teaspoons CMC, shake
vigorously. Sieve two or three times
through 60 to 80 mesh screen. Store
in airtight container. APPLICATION:
stir occasionally during use, as
iron tends to settle. Apply to the
thickness of a dime by brushing,
dipping, or spraying, using clean
tools. Allow glaze to dry slightly
between coatings and to dry
completely before firing. Take care
that dust does not settle on the
surface during drying. FIRING: Fire
to cone 5 oxidation exactly, cool
normally.
|
|
-
82
- LIGHT YELLOW MATT
|
Aspect
: matt
|
Cône
: 6
|
Composants
:
|
En
masse :
|
Albany
slip
|
25
|
Gerstley
Borate
|
50
|
Kaolin
|
25
|
|
|
|
|
- Notes
: From Harold J. McWhinnie.
Glazes of this sort can be
strongly marked with rich visuakl
textures due to their high flux
content.
- Substitutions
for albany slip: (1) barnard clay
25, (2) ball clay 12, iron 12.
Also according to a computer
analysis of the above glaze the
addition of 5 % rutile would
improve the durability.
|
|
|
83
- RANDY'S RED
|
Aspect
:
|
Cône
: 6
|
Composants
:
|
En
masse :
|
Gerstley
Borate
|
31,96
|
Talc
|
13,86
|
Kona
F4
Feldspar
(sodique)
|
19,80
|
EPK
(kaolin)
|
4,95
|
Silice
|
19,70
|
RIO
(oxyde de fer rouge)
|
15,00
|
Notes
: From Dianna Rose Downs.
|
|
|
84
- HAPPY'S MIX
|
Aspect
: Semi-mat
|
Cône
: 6 oxidation or
reduction
|
Composants
:
|
En
masse :
|
Feldspath
potassique
|
30
|
Spodumène
|
20
|
Dolomie
|
22,4
|
Cornwall
stone (felspath
mixte)
|
25
|
Carbonate
de calcium
|
3,5
|
Zircopax
(zircon : ZrSiO4)
|
10
|
Dioxyde
d'étain
|
8
|
Bentonite
|
4
|
- Notes
: Semi-mat pale blue (over
white clay)
- additions
lite green : 1% black copper
- brown
spotted gold : 10% red clay and
10 % gran. illemanite
- glue
green spotted : 1% cob carb and
1% green chrome and 4% fine
manganese diox.
|
|
85
- GUMP GREEN
|
Aspect
:
|
Cône
: 5 - 6 oxidation
|
Composants
:
|
En
masse :
|
Custer
feldspar
(potassique)
|
232,4
|
Carbonate
de calcium
|
91,5
|
Silice
|
32,3
|
Oxyde
de zinc
|
30,4
|
Kaolin
|
54,4
|
Dolomie
|
6,25
|
Carbonate
de baryum
|
18,75
|
Ball
Clay
|
12,5
|
Oxyde
de fer noir
|
17,7
|
Carbonate
de cobalt
|
3,5
|
Notes
: From Patrick Veerkamp. apply
thinish, best on dark body : dark
green matt, black where thin, with
kinda yellow overtones.
|
|
|
86
- BEIGE CREPE
|
Aspect
: smooth matt
|
Cône
: 6
|
Composants
:
|
En
masse :
|
Custer
feldspar
(potassique)
|
49
|
Silice
|
5,3
|
Carbonate
de calcium
|
18
|
Oxyde
de zinc
|
8,2
|
Ball
Clay
|
14,7
|
Bentonite
|
4,8
|
Rutile
(Dioxyde titane :
TiO2)
|
6
à 8
|
- Notes
: From Janice Lipuma. A
medium tan/gold smooth matt.
great alone or over others. (the
more rutile, the more golden
color)
|
|
|
87
- SOFT TURK
|
Aspect
: matt
|
Cône
: 6
|
Composants
:
|
En
masse :
|
Custer
feldspar
(potassique)
|
34,9
|
Carbonate
de calcium
|
12,6
|
Oxyde
de zinc
|
25,8
|
Kaolin
|
4,1
|
SIlice
|
22,6
|
Rutile
en grains (dioxyde de
titane)
|
3
|
Carbonate
de cuivre
|
3
|
Notes
: medium blue green
|
|
88
- GLOSSY OPAQUE COPPER
BLUE
|
Aspect
: turquoise
|
Cône
: 6 oxydation
|
Composants
:
|
En
masse :
|
Custer
feldspar
(potassique)
|
51
|
Silice
|
19
|
Carbonate
de calcium
|
7
|
Gerstley
Borate
|
21
|
Ball
Clay
|
2
|
Carbonate
de cuivre
|
4
|
- Notes
: Can also be made into
rutile green by subst. Chrome Ox.
3 and rutile 3for the copper
carb. Or, sky blue add cobalt
carb 5 and rutile 3(omit copper
carb) Very consistent, stores
well. I think its
- from
the COMPLETE BOOK OF CLAY AND
GLAZES
|
|
|
89
- BARNARD BLACK
|
Aspect
: satin matt black
|
Cône
: 6 oxydation
|
Composants
:
|
En
masse :
|
Barnard
clay
|
65
|
Custer
feldspar
(potassique)
|
15
|
Carbonate
de calcium
|
10
|
Colemanite
|
10
|
|
|
- Notes
: The recipe does not specify
which feldspar but Custer seems
to work fine.
-
- Note:
- 1.
It goes dark brown over a light
coloured glaze.
- 2.
Crawls if put on too
thickly.
- 3.
Can be used on
greenware.
- 4.
Look Ma! No oxides!
- From
Robert Wadey
|
|
|
90
- ROB WADLEY'S BARNARD BLACK
|
Aspect
: semi gloss
|
Cône
: 6 electric
|
Composants
:
|
En
masse :
|
Barnard
clay
|
54
|
Néphéline
syénite
|
29
|
Gerstley
Borate
|
17
|
|
|
|
|
Notes
: This was dark brown, well
behaved semi-gloss. It's
semi-transparent where thin. From
Vickie AJohn Sproule
|
|
91
- OSB
|
Aspect
: shino white
|
Cône
: 6
|
Composants
:
|
En
masse :
|
Kona
F4 Feldspar
|
45
|
Silice
|
33
|
Carbonate
de calcium
|
4
|
Talc
|
7
|
Kaolin
|
5
|
Carbonate
de soude
|
5
|
Dioxyde
d'étain
|
10
|
Notes
: Nice shino white breaking to
orange.
|
|
|
92
- R-1000MATT
|
Aspect
:
|
Cône
: 6
|
Composants
:
|
En
masse :
|
Néphéline
syénite
|
38,7
|
Wollastonite
|
15,2
|
Carbonate
de baryum
|
15,2
|
Gerstley
Borate
|
10,2
|
EPK
(kaolin)
|
10,2
|
Silice
|
10,5
|
Notes
: source for original recipe :
Wayne Bate
- color:
black, brown, blue, purple,
turquoise, chartreuse, coral,
yellow, crimson, and
green.
- surface:
matt
- RM-54
Black - 5% Mason 6600
- RM-41
Brown - 10% Mason 6153
- RM-53
Blue - 5% Mason 6313
- RM-34
Purple - 10% Mason 6385, 5%
Wollsatonite
- RM-37
Turquoise - 10% Mason
6390
- RM-47
Chartreuse - 5%, Mason
6236
- RM-55
Coral - 15% Mason 6090, 5% Frit
3134, 10%
Wollastonite
- RM-50
Yellow - 5% Mason
6481
- RM-44
Crimson - 10% Mason
6006
- RM-42
Green - 6% Mason 6219
- Mason
stains = colorants
céramiques
|
|
|
93
- NO NAME GLAZE
|
Aspect
:
|
Cône
: 6 reduction
|
Composants
:
|
En
masse :
|
Talc
|
25
|
Cryolite
|
15
|
Silice
|
30
|
EPK
(kaolin)
|
30
|
Bentonite
|
2
|
Notes
: submitted by Eliz Drachman
|
|
94
- ZAKIN'S GK ASH
|
Aspect
:
|
Cône
: 5 - 6
|
Composants
:
|
En
masse :
|
Fritte
Ferro 3134
|
18
|
Carbonate
de magnésium
|
7
|
Néphéline
syénite
|
10
|
Carbonate
de strontium
|
11
|
Spodumène
|
15
|
EPK
(kaolin)
|
10
|
Carbonate
de calcium
|
13
|
Opax
|
12
|
Bentonite
|
2
|
Ash,
unwashed fireplace (cendre de bois
de foyer de chauffage non
lavée)
|
15
|
- Notes
: submitted by Janet Price.
Doesn't add to 100 because of the
strontium/barium substitution,
the bentonite, and the ash. This
may be closer to cone 5 than cone
6 but seems to work over a range
of a couple cones. This is
Zakin's GK base with 15%
unwashed, mixed fireplace ashes,
with strontium substituted for
barium and superpax for opax. By
itself over porcelain, the glaze
is not particularly interesting.
But other
- glazes
on top of it run and drip and
blend together nicely. I've found
that if I glaze the lower 2/3 or
3/4 of a pot with a well?behaved
glossy glaze, brush a coat of
this ZGK ash glaze on the top 1/3
or so and then brush or dip some
third glaze on top of the ash
glaze, I get a nice pattern of
runs that don't go off the bottom
of the pot onto the kiln shelf
(usually). Different glazes give
different kinds of runs and bands
of different glazes are
interesting too. The few times I
tried a matte glaze on the
bottom, the pots cracked. Could
have been coincidence. But I've
been sticking with glossy glazes
on the bottom since
then.
|
|
|
95
- SHIMMER
|
Aspect
: matt to glossy
|
Cône
: 4 - 8
|
Composants
:
|
En
masse :
|
Custer
feldspar
(potassique)
|
45
|
Carbonate
de calcium
|
22
|
Silice
|
13
|
Kaolin
|
15
|
Carbonate
de lithium
|
6
|
Notes
: comments: for green, add 6 gr
rutile + 2 gr Cobalt Carbonate + 1
gr bentonite , for blue add .5%
Cobalt Carbonate AT cone 4-5 these
glazes are a wonderful matt; higher
they turn 'glossy'. I especially did
not like the green at this
temperature - too hard and glassy
looking. These recipes came from
Capilano College in North Vancouver
(Canada) where I took a glaze
course. submitted by Penny
Anagnostopoulos
|
|
|
96
- MATT BLACK
|
Aspect
: matt
|
Cône
: 6
|
Composants
:
|
En
masse :
|
Alnany
slip
|
27,5
|
Custer
feldspar
(potassique)
|
30
|
Gerstley
Borate
|
6,5
|
Silice
|
20
|
Ball
clay
|
3
|
Oxyde
de zinc
|
3
|
Carbonate
de calcium
|
3
|
Talc
|
7
|
Carbonate
de cuivre
|
9
|
Carbonate
de cobalt
|
6
|
Notes
: These recipes came from
Capilano College in North Vancouver
(Canada) where I took a glaze
course. Another wonderful recipe
from there is one for a matt black
at cone 6. submitted by Penny
Anagnostopoulos
|
|
-
-
-
-
97
- SATIN MATT
|
Aspect
:
|
Cône
: 6 - 4
|
Composants
:
|
En
masse :
|
Gerstley
Borate
|
11,18
|
Dolomie
|
11,23
|
Carbonate
de calcium
|
13,70
|
Oxyde
de zinc
|
0,32
|
Néphéline
syénite
|
41,37
|
EPK
(kaolin)
|
5,95
|
Silice
|
16,25
|
Notes
: The following is one of my
favorite Satin Matts. It fires at
cone 06-04 and will accept most
colorants. Not every glaze fits
every clay body, please test
first. submitted by Christine
Winokur
|
|
|
98
- MATTE BASE
|
Aspect
: matt
|
Cône
: 5 - 6
|
Composants
:
|
En
masse :
|
Cornwall
stone
(felds mixte)
|
74,7
|
Carbonate
de calcium
|
17,9
|
Gerstley
Borate
|
5,1
|
Bentonite
|
2,4
|
|
|
- Notes
: A nice, reliable, matte
base glaze for Mason Stains.
For
- purple,
try adding 5% # 6385 (pansy
purple). For green, try adding 5%
# 6219 (french green). I like the
way it shows speckles when used
over Standard Clay # 112. Mason
stains = colorants
céramiques
|
|
|
99
- VAL Turqouise
|
Aspect
: frost
|
Cône
: 5 - 9 oxidation or
reduction
|
Composants
:
|
En
masse :
|
Custer
feldspar
(potassique)
|
27,6
|
Gerstley
Borate
|
16,87
|
Silice
|
21,32
|
Carbonate
de calcium
|
8,82
|
Dolomie
|
2,9
|
Carbonate
de cuivre
|
2,34
|
Bentonite
|
8
|
- Notes
: a pale blue turwuoise with
a frost. I recently saw
these
- on
test tiles fired at cone 6
oxidation and cone 9 reduction.
Both versions of both glazes were
very nice.
- submitted
by Michelle Lowe
|
|
-
100
- Emerald Green
|
Aspect
: frosy
|
Cône
: 5 - 9 oxidation or
reduction
|
Composants
:
|
En
masse :
|
Gerstley
Borate
|
49
|
EPK
(kaolin)
|
19
|
Silice
|
32
|
Carbonate
de soude
|
2
|
Oxyde
de chrome vert
|
2
|
Cobalt
|
1
|
- Notes
: Emerald Green ^5-9
oxidation or reduction - a darker
green also with a slight dark
blue frost. I recently saw these
on test
- tiles
fired at cone 6 oxidation and
cone 9 reduction. Both
versions
- of
both glazes were very
nice.
- submitted
by Michelle Lowe
|
|
|
101
- Kickwheel
clear
|
Aspect
: gloss
|
Cône
: 5 - 7
|
Composants
:
|
En
masse :
|
Gerstley
Borate
|
50
|
Silice
|
32,5
|
EPK
(kaolin)
|
17,5
|
|
|
|
|
Notes
: The following is a cone 5-7
clear gloss base, we have made it
for over 20 years: It takes most
Mason colors and is simple to make.
submitted by Christine at Kickwheel
Pottery Supply
|
|
|
102
- C. Gareri Base
|
Aspect
:
|
Cône
: 4 - 8 oxidation
|
Composants
:
|
En
masse :
|
Néphéline
syénite
|
34,1
|
EPK
(kaolin)
|
1,8
|
Gerstley
Borate
|
16,3
|
Silice
|
31,8
|
Carbonate
de calcium
|
3,9
|
Oxyde
de zinc
|
6,1
|
Carbonate
de baryum
|
5,9
|
Bentonite
|
2
|
- Notes
: I have never ommitted
Barium in this ^4-^8 oxidation
glaze actually i have not used
the glaze in years. But it is a
great oxidation glaze and I
considered using it next year at
the school where I teach.
However, the barium scared me. IF
barium Carb can not be ommited is
there a safe substitute -
submitted by Charles
Gareri
|
|
-
103
- Chappel Boron
Lithium
|
Aspect
: glassy
|
Cône
: 6
|
Composants
:
|
En
masse :
|
Spodumène
|
51
|
Gerstley
Borate
|
26
|
Silice
|
23
|
Carbonate
de cuivre
|
5
|
Oxyde
de fer rouge
|
0,5
|
Bentonite
|
1
|
- Notes
: I was looking for something
like Warren MacKenzie's Glassy
Green that would fire at ^6
instead of ^4. The Boron Lithium
in Chappel's glaze book looked
close so I added the same oxides
as MacKenzie uses in his ^4.
MacKenzie doesn't use his ^4
anymore, but found a ^1 glassy
green he uses instead. This is
also a nice transparent ^6
without colorants.
- submitted
by Lee Love
|
|
|
104
- Mexico Point
Green
|
Aspect
: matt
|
Cône
: 6
|
Composants
:
|
En
masse :
|
Kona
F4
spar
(sodique)
|
34
|
Spodumène
|
14
|
Kaolin
|
6
|
Dolomie
|
14
|
Gerstley
Borate
|
12
|
Zircopax
(zircon : ZrSiO4)
|
20
|
Carbonate
de cuivre
|
2,5
|
Bentonite
|
1
|
- Notes
: I'm sending this to the
group rather than directly
because
- it's
such a nice glaze some others
might like to have it too. It's
cone 6, from Coopers Electric
Kiln Ceramics, Vol.2, p122.
Called
- "Mexico
Point Green". It's a lovely soft
matte green on the
white
- burning
stoneware I use. submitted by Dan
Taylor
|
|
|
105
- KLINESVILLE GOLD (Jeff
Dietrich)
|
Aspect
: golden
|
Cône
: 6 electric
|
Composants
:
|
En
masse :
|
Carbonate
de magnésium
|
4,49
|
Carbonate
de calcium
|
20,23
|
Wollastonite
|
5,62
|
Néphéline
syénite
|
56,18
|
Redart
clay
|
13,48
|
Oxyde
de fer rouge
|
6,74
|
Zircopax
(zircon : ZrSiO4)
|
12,36
|
- Notes
: Golden glaze to round out
the palette and add
warmth.
- This
applied smoothly - was a smooth
satin matt - color similar to old
gold.
|
|
-
106
- WANAMAKER SATIN GLAZE (Jeff
Dietrich)
|
Aspect
: satin matt
|
Cône
: 6
|
Composants
:
|
En
masse :
|
Dolomie
|
19,28
|
Spodumène
|
12,05
|
Néphéline
syénite
|
54,21
|
Ball
Clay
|
14,46
|
Dioxyde
de titane (TiO2)
|
2,41
|
Oxyde
de zinc
|
4,82
|
- Notes
: Finely Textured Satin matt
- Do not apply too thick as
it
- will
bubble. I substituted Rutile for
Titanium Dioxide because
I
- didn't
have any and it worked fine. Just
don't double dip
unless
- glaze
if very thin. I liked how this
worked over texture.
|
|
|
107
- Corcoran Black
|
Aspect
:
|
Cône
: 6 oxidation or
reduction
|
Composants
:
|
En
masse :
|
Carbonate
de magnésium
|
2,6
|
Custer
spar
(potassique)
|
48,3
|
Carbonate
de calcium
|
17,2
|
EPK
(kaolin)
|
4,3
|
Silice
|
27,6
|
Oxyde
de fer rouge
|
8
|
Oxyde
de cobalt
|
1
|
Dioxyde
de manganèse
|
3
|
- Notes
: From Julia Moore
|
|
|
108
- Vivian's
Red/Purple/Green
|
Aspect
:
|
Cône
: 6
|
Composants
:
|
En
masse :
|
Néphéline
syénite
|
46,33
|
Silice
|
19,80
|
Gerstley
Borate
|
15,56
|
Carbonate
de calcium
|
8,21
|
Dolomie
|
5,94
|
Oxyde
de zinc
|
3,68
|
EPK
(kaolin)
|
2,48
|
Carbonate
de cuivre
|
0,98
|
Dioxyde
d'étain
|
0,98
|
Rutile
(Dioxyde de titane :
TiO2)
|
0,49
|
- Notes
: In oxidation at C6, It is a
transparent green that
crackles.
- In
reduction, at C6, it will turn
blood red if heavily reduced,(
has a tendency to run).
- In
reduction, it works best at C10,
a beautiful purple.
|
|
-
-
-
-
- Frittes
utilisées dans les recettes de ces pages
:
- (Formules
de seger)
-
- Fritte
Pemco P-25 : K2O 0,184 Na2O 0,760 CaO 0,029 ZnO 0,028
Al2O3 0,381 B2O3 0,774 SiO2 2,629
- Fritte
Pemco P-311 : K2O 0,020 Na2O 0,288 CaO 0,691 Al2O3
0,270 B2O3 0,570 SiO2 2,486
- Fritte
Pemco P-626 : BaO 0.664 Na2O 0.336 Al2O3 0.197 B2O3
.662 SiO2 3.044
- Fritte
Ferro 3110 : K2O 0,064 Na2O 0,644 CaO 0,293 Al2O3
0,095 B2O3 0,097 SiO2 3,003
- Fritte
Ferro 3124 : K2O 0,020 Na2O 0,282 CaO 0,698 Al2O3
0,269 B2O3 0,547 SiO2 2,555
- Fritte
Ferro 3134 : Na2O 0,317 CaO 0,683 B2O3 0,634 SiO2
1,476
- Fritte
Ferro 3191 : Na2O 0,501 CaO 0,499 B2O3 1,002 SiO2
2,000
- Fritte
Ferro 3195 : Na2O 0,313 CaO 0,686 Al2O3 0,404 B2O3
1,099 SiO2 2,751
- Fritte
Ferro 3230 : BaO 0,03 K2O 0,25 Na2O 0,64 ZnO 0,08 SiO2
2,26
- Fritte
Ferro 3278 : Na2O 0,669 CaO 0,331 B2O3 0,842 SiO2
2,530
- Fritte
Ferro 3289 : Na2O 0.332 BaO 0.668 Al2O3 0.198 B2O3
0.668 SiO2 3.070
- Fritte
Ferro 3304 : Na2O 0,07 PbO 0,93 Al2O3 0,15 SiO2
2,58
- Fritte
Ferro 3403 : Na2O 0.015 K2O 0.046 CaO 0.005 PbO 0.934
Al2O3 0.069 SiO2 1.438
-
-
- Matières
typiques Nord Américaines :
- (Les
compositions sont données en %
massiques)
-
- Ocmulgee
red clay : A sandy, coarse, iron-bearing clay
formed by sedimentary deposition by moving water.
Composition % 0.358 Na2O 1.285 K2O 0.793 MgO 0.37 CaO
21.82 Al2O3 53.86 SiO2 1.196 TiO2 6.4 Fe2O3 0.230 MnO
8.9 Perte au feu
- Pine
lake fire clay : Composition % 0.2 Na2O 0.6 K2O
0.1 MgO 0.3 CaO 27.3 Al2O3 58.6 SiO2 1.9 TiO2 1.5
Fe2O3 9.5 Perte au feu
- Goldart
stoneware : A plastic Ohio fire clay / stoneware
clay. Formed by metamorphosis of an ancient swamp.
Composition % 0.17 Na2O 1.00 K2O 0.23 MgO 0.09 CaO
28.53 Al2O3 57.46 SiO2 1.99 TiO2 1.25 Fe2O3 9.28 Perte
au feu.
- Kentuky
OM#4 ball clay : OM #4 is a fine-grained ball clay
with good plasticity and strength. It is very common
in glaze recipes. It undergoes a sudden color shift
around cone 8-9, from straw yellow to solid gray
[IMC]. Composition % 0.3 Na2O 1.0 K2O 0.4 MgO
0.3 CaO 27.9 Al2O3 55.2 SiO2 1.2 TiO2 1.1 Fe2O3 12.6
Perte au feu.
- Barnard
clay : A high-iron clay from glacial deposits.
Composition % 0.12 Na2O 2.04 K2O 0.75 MgO 0.27 CaO
10.87 Al2O3 59.7 SiO2 0.67 TiO2 14.65 Fe2O3 3.4
MnO 7.48 Perte au feu.
- Grolleg
china clay (exception cette matière est
Anglaise): A primary (residual) kaolin formed by
the action of hydrothermal vapors on soda feldspar in
granites and pegmatites. 81% kaolinite, 15% mica, 4%
feldspar and other minerals. Manufactured by ECC
International; comes from southwest England. Plastic
and white-firing, low shrinkage, excellent hardness.
Composition % 0.10 Na2O 1.90 K2O 0.10 CaO 0.30 MgO
37.00 Al2O3 48.00 SiO2 0.03 TiO2 0.70 Fe2O3 12.01
Perte au feu
- A.P
green fire clay : A Missouri fire clay - a
secondary deposit of clay and sediment in deep fresh
water. Composition % 1.0 K2O 0.35 MgO 0.35 CaO 31.0
Al2O3 52.0 SiO2 1.9 TiO2 2.0 Fe2O3 11.0 Perte au
feu.
- Tennessee
#9 Ball Clay : Off-white, light-firing ball clay.
Contains 74% kaolinite, 17% free quartz, 5% feldspar,
and 1% organic material. Composition % 0.3 Na2O 0.4
K2O 0.4 MgO 0.5 CaO 30.1 Al2O3 54.2 SiO2 1.6 TiO2 1.1
Fe2O3 11.4 Perte au feu.
- Kingsley
Kaolin : A coarse white-firing kaolin. Composition
% 0.11 Na2O 0.14 K2O 0.04 MgO 0.90 CaO 38.40 Al2O3
44.80 SiO2 1.64 TiO2 0.39 Fe2O3 13.60 Perte au
feu.
- P.B.X
fire clay : A Missouri fire clay. Missouri fire
clays are secondary deposits of clay and sediment
formed in deep fresh waters. Composition % 0.35 MgO
0.36 CaO 38.52 Al2O3 56.63 SiO2 1.51 TiO2 1.75 Fe2O3
0.88 Perte au feu.
- Kona
F4 Feldspar : Commonly used soda feldspar; used in
porcelains because of its low iron content.
Composition % 6.90 Na2O 4.8 K2O 0.05 MgO 1.70 CaO
19.60 Al2O3 66.80 SiO2 0.04 Fe2O3 0.20 Perte au
feu.
- Albany
slip : An iron-rich clay consisting of shale,
slate, limestone, sandstone, and dolomite deposits
from glacial Lake Albany during the Wisconsin Ice Age
(10-15 thousand years ago). Contains illite, quartz,
limonite, chlorite, calcite, dolomite, and kaolinite.
Composition % 0.80 Na2O 3.20 K2O 2.71 MgO 5.81 CaO
14.63 Al2O3 57.82 SiO2 0.40 TiO2 5.21 Fe2O3 9.41 Perte
au feu.
- G200
Feldspar : Commonly used potash feldspar. In many
cases can be substituted for or by Custer. Composition
% 3.04 Na2O 10.75 K2O 0.81 CaO 18.5 Al2O3 66.3 SiO2
0.082 Fe2O3 0.16 Perte au feu.
- Custer
Feldspar : Commonly used potash feldspar. Can be
used to substitute for Keystone, Buckingham, Yankee,
or Kingman feldspars. Composition % 2.91 Na2O 10.28
K2O 0.30 CaO 17.35 Al2O3 69.00 SiO2 0.12 Fe2O3 0.04
Perte au feu
- Volcanic
ash : Aluminosilicate glass of volcanic origin.
Results when a volcano blows tiny particles of frothy
lava into the air; these particles settle for many
miles around, sometimes in layers over 30 feet deep.
Variable in composition. Composition % 1.79 Na2O 7.84
K2O 0.07 MgO 0.68 CaO 11.55 Al2O3 72.51 SiO2 0.10 P2O5
0.54 TiO2 1.20 Fe2O3.
- Epsom
salts : magnesium sulfate. Highly soluble; used in
small quantities (0.1%-1%) as a flocculant in slips
and glazes. Many sources recommend making a
concentrated solution, then adding the solution to the
mixed glaze. Composition Molaire : MgO SO3 7
H2O.
- Alberta
Slip : substitute for Albany slip. Composition %
2.00 Na2O 3.35 K2O 3.32 MgO 6.30 CaO 0.19 BaO 14.56
Al2O3 64.83 SiO2 0.46 TiO2 5.01 Fe2O3
- K200
Feldspar : Potash feldspar. Composition % 3.36
Na2O 10.13 K2O 0.18 CaO 17.84 Al2O3 67.99 SiO2 0.08
Fe2O3 0.31 perte au feu.
- Red
Art : An iron-rich clay consisting of clay/shale
deposits from a prehistoric lake bed. Contains 40%
illite, 10% kaolinite, 7% iron oxide, and 15% mixed
layered clays. Composition % 0.38 Na2O 4.15 K2O 1.59
MgO 0.26 CaO 15.51 Al2O3 64.95 SiO2 1.09 TiO2 7.05
Fe2O3 0.22 P2O5 4.80 Perte au feu.
- Cryolite
: A natural source of insoluble sodium. Because of
its lack of oxygen, can help to produce artifical
reduction in electric firing. The release of fluorine
at higher temperatures may produce cratered, bubbled
surfaces. Composition : Na3AlF6
- Opax
: Fritted zirconium opacifier. No longer
manufactured. Composition % 1.11 Na2O 0.91 Al2O3 6.48
SiO2 90.84 ZrO2
- Cornwall
stone : Composition % 3.30 Na2O 4.31 K2O 0.14 MgO
1.81 CaO 16.31 Al2O3 73.80 SiO2 0.15 TiO2 0.20
Fe2O3
-
- Ball
Clays Nord Américains :
- (Explications
d'Édouard Bastarache, edouardb@colba.net
)
-
- les
ball clays américains ont la formule
générale suivante :
- SiO2
59.25%
- Al2O3
36.19%
- Fe2O3
0.91%
- TiO2
1.71%
- CaO
0.23%
- MgO
0.23%
- K2O
1.03%
- Na2O
0.46%
- Point
de fusion : 1710 °C
-
- Les
ball clays anglais sont un peu différents
:
- 1 -
Ils sont plus plastiques
- 2 -
Ils contiennent peu de d'oxyde fer comparativement aux
ball clays américains.
- 3 -
Ils contiennent par contre de très grandes
quantités de carbone qui disparait à la
cuisson.
-
- Le
point de fusion moyen des kaolins est de 1785
°C
-
- Donc,
il est vrai qu'ils sont des argiles très
plastiques mais, il faudrait aussi dire qu'ils sont
très réfractaires.
- Ici
quand on manque de kaolin pour une glaçure, on
le remplace par un ball clay.
-
-
-
-
-
- Smart2000.fr
©
Janvier
2002
-
FRANCE
- Contact
: Smart2000@wanadoo.fr
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|