Some Crater Glazes (from Cone 4 to 9)

Crater glaze – 1280°C, cone 9 oxidation (Aki Moriuchi)

Nepheline syenite 60
Barium carbonate 18
China clay(koalien) 11
Flint 13 (kwarts)
+
Silicon carbide 4

Moss jug, Carys Davies, 2010. Copper carbonate slip under crater glaze on porcelain, height 5cm. The copper turns red where reduced by the silicon carbide in the glaze. Photo: Carys Davies

If silicon carbide is added to a viscous matt glaze, craters form when carbon dioxide is given off during firing. Silicon carbide also causes local reduction in the glaze, causing copper to turn red owing to the lack of oxygen available.

Crater glazes (cone 4-6)

The ones used successfully contain cryolite. They are fired to mid-range cones
(4-6), and require experimentation while firing, for the desired results.
These two recipes are from the CM Handbook (1977), “Ceramic Glazemaking,” by
Richard Behrens, and are amongst many crater glazes (some with extinct or
hard-to-find ingredients) found on pages 43 and 44:

Behrens Crater Glaze 5 (Cone 4-6)
Fluorospar–19%
Cryolite–34.3%
Kaolin (EPK is best)–9.0%
Flint–37.7%

Behrens Crater Glaze 10 (Cone 4-6)
Fluorospar—14.6%
Cryolite–26.3%
Kaolin (EPK)–21.0%
Flint–38.1%

Krimp glazuur- Textured Crawl glaze 1240C

Variation of Lana Wilson’s Textured Crawl glaze

From umtclayandglaze.blogspot.nl

Cone 6 ox (1240C)

Nepheline Syenite         60
Magnesium                    22
EPKaolin                      18

This recipe is very similar to the original; the ball clay is replaced with kaolin. This seemed to make the glaze adhere more smoothly to the tile, and also gave it a pearlescent sheen. The high amount of magnesium in this glaze is what causes the crawling effect. It needs to be applied thickly in order to get a good amount of crawl – I applied it about 1/8 inch thick. It can give interesting results layered over slips and glazes, as long as the base glaze is fairly dry.

Textures…. amazing

How to make a texture roller for clay

Simple Trick!!!
This texture roller, you can use it as soon as the hot glue has cooling, which is very fast. 

Supplies:

• a roller of some sort (cut up pieces of PVC, empty rolls of tape, couplings for PVC, plastic rolling pins from the dollar store or craft store).
• a water resistent pen
• a hot glue gun.
• extra hot glue sticks.

Draw your pattern onto the rolling pin. It’s easier to work out the pattern before with a pen. Use some sort of connected pattern, they tend to have the best results. And don’t go overboard with the lines, you’ll regret it later. And remember that the hot glue line aren’t going to be perfect, so just go with the imperfection.

While you’re drawing, plug in your hot glue gun. Make sure that you do it on a surface that you can toss when done, like newspaper or cardboard. When you’re done drawing on your design, start gluing. Be a bit heavy handed with the glue. If the lines are too thin, they won’t show up on the clay as well.

Source: http://potteryblog.com/category/how-to/tool-making/

Out of the Sea – Container

Finally I finished the container assignment, I glazed it with a zink and magnesium glaze, with 0,5% cobalt.
It turns out beautiful on the black clay. It was fired too high (>1140C), due to a broken and overheated oven at school. Sadly the shape has deformed a little because of this..

I also made a smaller version. Also nice. But with different glazes

Here more details of the container and the glaze.

Contemporary Ceramics- Valeria Nascimento

Textures, layers and geometries are all subjects that are being nicely explored here in the ceramics of Valeria Nascimento. I’m really loving their compositions and forms so reminiscent of botanical and sea shell patterns as well the tight, simple color palette (mostly white, a little black) that expresses them. Just lovely.

Valeria Nascimento draws much of her inspiration from the natural world. Her work uses repetitive sequencing with separate elements, to create cohesive sculptural groups. 

 

 

Blossoming

Valeria works with porcelain which has the smoothness and malleability she needs to create new shapes. She manipulates it, in some cases, to appear defiantly weightless. She is principally interested in creating large-scale wall installation pieces.

Read More.

 

Contemporary Ceramics – Timea Sido

I really like these lovely delicate ceramics from the Tangled Web Collection created by Timea Sido.

 Each piece is hand crafted by Timea using fine White Earthenware.

Uniquely textured Vessels of Enno Jäkel

 
These uniquely textured ceramic pieces are by the German artist Enno Jäkel.
The some sculptures are developed from the wheel-thrown vessels I made over the past years, following the same theme in a new manner. While shaping the soft clay the surface is stretched and forced to crack open so that the imprinted pattern expands – surface and shape of the object develop together, enhancing each other’s expression. 
 To see more of his work go to his website.

Het keramisch werk van Enno Jäkel heeft een spannende vormgeving en fascinerende oppervlaktes. Hoe doet hij dat: heel eenvoudig eigenlijk: je maakt krassen in een gedraaide pot en die pot tracht je van binnenuit verder uit te draaien (mits hulpmiddelen) terwijl hij nog niet leerhard is. De krassen strekken zich uit en vormen opbollende lijnen of imposante groeven. 

Bron: website Enno Jäkel 

Barbro Åberg: De voortdurende staat van wording

Barbro Åberg’s werk heeft een heel eigen karakter. Sinds een aantal jaren maakt ze opvallend organische vormen: cellulaire structuren die voor haar symbolen zijn van het leven zelf en de voortdurende vernieuwing daarin.

Haar werkwijze spreekt me aan : Intu�tie speelt een belangrijke rol in haar werk. In het begin was haar expressie kleurrijk en zwaar. Het was een weg die ze moest doorlopen om zo naar haar eigen stijl te komen.

Nu zijn de meeste stukken monochroom qua kleur. Hierdoor komt de focus meer te liggen op de vorm. Ook de expressie komen sterker en puurder uit. Zij speelt met de constructie. Zij is gefascineerde door het contrast tussen de zwaarte van klei en de luchtigheid van de open structuren van haar modellen. 

Ze neemt echt tijd voor haar werk. Ze staat zichzelf toe te reflecteren, aan te passen en te veranderen indien gewenst. Ze geeft haar impulsen de ruimte en is steeds in dialoog met haar werk. Ze hoopt dat elk werk een 3d vertalen is van proces.
Haar eigen uitspraak:

Time is a word that I keep returning to…

Meer weten.. click hier

Hidden structure revealed – Minkyu Lee

Minkyu Lee

Minkyu Lee is geboren in Seoul, Zuid Korea, in 1976.

Hij maakt beelden waarvan de structuur onthult wordt. Hij bouw zijn structuur op van kleiplaten en met heel veel precisie voegt hij ze samen. De buitenkant zijn veelal handgevormd vormen. Hij gebruikt een grote variatie aan glazuren en kleuren. Het gaat van metallic-achtige glazuren tot meteoor-achtig uiterlijk.

Wil je meer lezen, click hier

Zijn website is nog niet echt af… http://www.minkyulee.com/