Showing posts with label glaze. Show all posts
Showing posts with label glaze. Show all posts

Wednesday, July 27, 2016

Bringing the Green Man to Life


Some months ago I made this wall tile of a sleeping green man and ever since then it has sitting in my studio waiting to be glazed and brought to life. I have to admit that it's probably taken so long because I've done very little work on this scale and was a little nervous about being able to translate the picture in my head into reality. A special chemistry occurs when you glaze fire a piece of ceramic and it doesn't always produce the result you were expecting. With beads this is not really a problem but with a piece such as this that took so long to create it can make or break the finished piece. But there comes a time when you just have to take a deep breath and dive in and I'm sharing that process with you today.


This tile will be be wall mounted so the back won't be seen but since it was a little bit messy for my liking I used a green underglaze to tidy it up a bit. Underglaze doesn't melt in the way glaze does so I would still be able to prop it on its back to fire it.


In my minds eye I saw my green man as having a foliage of a mottled green with some leaves picked out in a darker green for contrast. I also wanted to pick out the veining and try to give some depth to his features, maybe giving the impression of bark around the eyebrows. To achieve this I settled on using two oxide washes and two glazes.


Oxide washes create a staining effect which can either be used alone or layered with glazes to alter the effect of the glaze. To begin with I used a Rutile wash (which creates an ochre finish) to pick out some of the veining on some of the leaves. Once the wash was dry I wiped it back form the surface areas leaving it just in the recessed veins.


Then I went for an Iron oxide (which gives a dark brown finish) on the remaining leaves and around the facial features and again wiped it back form the surface. I actually like the finish this wash gave at this stage so I'm thinking I might make another of these and just use washes on it - a bit like a sepia version.


Next comes the glaze proper. The majority of glazes in their wet form bare very little resemblance to their finished colours with many of them being a shade of red which is why you need to have a clear idea in your head of what you want to achieve. It certainly won't look that way during the process of glazing but that's what makes it so exciting when you open the kiln to see the transformation.

I used a crushed crystal glaze appropriately called 'speckled forest' for the central area. This type of glaze contains crystals which melt and flow during firing to produce lovely colour and pattern effects. If you look closely you can see these crystals in the uneven texture of this glaze.

The perimeter leaves I glazed with a smooth dark green glaze - again appropriately called 'Forest pine'. I also used this glaze to pick out and enhance the eyebrows.


So, once he had been left to dry fully it was time to (hopefully) make the magic happen and put him in the kiln. I only takes about three hours to fire this type of clay but I have a very heavily insulated kiln which takes an awfully long time to cool down so it was a bit of a nail biting wait until it was cool enough to take a peek. When I did my first reaction was phew - he's still in one piece and my second reaction was he has a spot right on the end of his nose!


But once he was was out of the kiln and cooled down fully (glaze colours can continue to change as the glaze cools fully) I decided I was pretty happy with the result. The spot on his nose is one of the crystals and doesn't impact the finished look - trees after all are not blemish free. I love the speckled effect and the contrast of the glazes and I got the bark effect I was looking for around the eyebrows.


All in all, a pretty successful project which I plan to revisit in the future...green is after all my favourite colour!

Monday, August 17, 2015

Countdown to Bead Fest!

Today is Monday the 17th. I depart for Bead Fest in 3 days, and a few miscellaneous hours. Set up on Thursday - with a stint as airport shuttle. Then Friday we can let the wild rumpus start!  (Thank you Mr. Sendak for that one.) 

My glaze fort. Please note coffee aka elixir of life; and Netflix on iPad. Currently binge watching West Wing. 

In the last few weeks I have been spending most time in the Glaze cave aka basement studio, where I barricade myself in with jars of glaze and underglaze. And I paint, and I paint. My pieces are so detailed, and involve multiple layers of glaze. Base coat, shadows, highlights... as if I was painting in watercolors. Then a coat of clear glaze over the underglaze colors. I love that each piece is individual and unique...

I have new designs this year that I have added to my Mythic Nature line of ceramic pendants. All the favorites will be in attendance at Bead Fest, and there are new orcas - thanks to Lindsay, barn owls, sleeping foxes, and the Mermaid of Zennor. A Cornish folktale, her inspiration is carved in wood on a church pew. (St. Senara's Church in Zennor UK)

 I currently have a small kiln at home, and larger kilns to use at the studio where I teach. All my pendants are fired at home in my workhorse! (Olympic doll kiln). Its not large, but I love that I can fire it fast and frequently!
Approximately 50 pendants in a load, each suspended on a hook, from a bar of the bead tree... 

 Then there is the polymer. And the resin. Oh my! 

All the polymer is still in progress. Theres a lot to do in three days... 

So as of this writing - its pricing and sorting time!

Mythic Nature pendants fresh from my little kiln.
Look what has arrived! I will have a selection of treasures from Lesley Watt with me (and her) at Bead Fest!
Lesley's loot teaser pix! 

If you are in need - here is a discounted admission coupon! Stop by Artisan's Alley and say Hello! 

Hey, pssst Fill in my name as the "Referring vendor" ok? Thanks. 

Friday, April 24, 2015

Moving Forwards, Glazing Backwards?

Glazing. So much glazing to do... 

I do like to get all things organized first... 
I have been doing so much of it lately... my first large festival of the year is in a week and there's a new Ceramic Art Bead Market (auction site) on Fb that is taking off. I have new work to glaze and get out there, and i have old favorites to restock and replenish. My pieces are very detailed, a bit narrative, and completely mythic/nature inspired. Let me give you a glimpse into the glazing routine that draws on my painting background. (Back in the art school days before clay found me...)
Highlights and lowlights, Fins and ombre shading. 
I work most often with a combination of "low-fire" glazes and underglazes. I like the way I can mix and paint with the underglazes, layering, blending and the like. In the mermaids above you can see three tones in each hair color, and the type of color variations I use on the tails. But then that is all covered by 2-3 coats of a transparent turquoise glaze (below) This does allow the color variations painted in underglazes to show through, and gives an underwater appearance. Many layers? Yes. An investment in time? Yes. But I think its worth it. Tiny paintbrushes? Yes! 
Some of these tiny dears are looking a little worse for wear.
With a new crow design I am working on this year - I had to drastically change my approach. I did a series of these at a fellow artists request. I wanted to capture the iridescence of the crow's feathers, and so painted them in black underglaze, thin like a watercolor wash, and then applied blue and purple highlights. No good. I have approached these now in a backwards fashion... Here's what I mean: 
Backgrounds glazed, then first payers of underglaze. 
Three colors on each berry. 
adding one more color, then the black. 
I begin by glazing the background and the pendants reverse side in low fire glazes, three coats of course. Then I begin the details. First a bright cobalt, then a purple. The berry has shadow and highlight, each in a simple brushstroke accent. Then one more color, a teal and I add the black. They are each a bit different, but consistent. Of course now - after I finish writing this, all the areas so painstakingly painted in underglaze have to be glazed over with 2-3 layers of clear gloss! 
seals, crows, hares awaiting clear glaze... 
The kiln is loaded from yesterday's marathon glazing session, just waiting for these beauties on the top later. Let me refill the coffee and go crack open that jar of clear! I'd love to hear what you think of these new demanding colorful corvids...



Friday, August 8, 2014

Freeform Friday: the Majolica experiment


In my last post, I shared with you a little of the background and the history of this style of ceramics/decoration. Now I have put it all to practice. 


This summer, during the clay camp I teach, my teens did a Majolica project. I had made simple terra cotta plates for each student, and while their thrown pieces were bisque firing they glazed.
They did a fantastic job and really enjoyed the process. They best results seemed to occur when they built their design out, making choices as they went. It was organic, and they were able to assess and make creative decisions freely. Those that had a precise plan still had great results, but it seemed the freedom of "off the cuff" was more rewarding. ( The students were using Amaco Velvet underglazes over  a ^04 opaque white glaze.)

Thursday - 

This morning I sat down to do a few test pieces- I am using the Amaco Gloss Decorating Series glazes over the same low fire white glaze. Sadly this series is discontinued. My glazes had dried, and I have reconstituted them. Its been a long road to get here: sitting down to glaze with colors and coffee.
I like an orderly glaze table. 
Keep your coffee and brush water on opposite sides of the table. 
The discontinued GDC series. 
Building up background areas. 

The test pieces. Before
All in all - I need to learn from my students. For the most part I am not thrilled with this selection. I need to just play with color and pattern and not get too precious or whimsical with details and motifs. I'll fire these today, so I understand what works best with layering and thickness. Then I will glaze the rest...

Friday - the results     ( Please excuse the 1. brevity 2. coffee stains on the counter. you'll see. I'm still on my first sips.)

So I open the kiln today, just 5 minutes ago - looks great! I am sorely disappointed that this line of glazes is discontinued. They are lovely. Fully fused into the base glaze, they feel satiny and the colors are intense. The top pix, with coffee, shows both the level of gloss finish, and a bit of the texture. The glaze looks bumpier than it feels.
I am not thrilled with my designs. But seeing these is sparking ideas in my coffee deprived brain. I think I need to go peruse my "Eye Candy" page in Pinterest, and pull out my Mehndi/henna design books. Thats where I am headed... 

So tell me! What do you think? 


Off to drink coffee, and glaze! 


Jenny
www.jdaviesreazor.com






Friday, July 25, 2014

Freeform Friday: Majolica!

Majolica -
In one word, one style there is so much history culture and tradition...


In my next pair of posts I would like to dazzle you with pictures, place Majolica in art/ceramics history, and show you how I am applying it to a series of pendants and charms. Ready? Cool...

Majolica is a tin glazed pottery - which translates as a colored earthenware clay body, with an opaque white (tin-based) glaze. Decorations are painted on top of the white glaze...
"Tin-glazed pottery is pottery covered in glaze containing tin oxide which is white, shiny and opaque. The pottery body is usually made of red or buff colored earthenware and the white glaze was often used to imitate Chinese porcelain. Tin-glazed pottery is usually decorated, the decoration applied to the unfired glaze surface by brush as metallic oxides... The makers of Italian tin-glazed pottery from the late Renaissance blended oxides to produce detailed and realistic polychrome paintings.

The earliest tin-glazed pottery appears to have been made in Iraq in the 9th century... From there it spread to Egypt, Persia and Spain before reaching Italy in the Renaissance, Holland in the 16th century and England, France and other European countries shortly after." (Thanks Wiki)


1. Dish with bird, in Islamic-derived style, Orvieto, ca.1270-1330
2. A Hispano-Moresque dish, with Christian monogram "IHS", . Valencia, c.1430-1500.

3.Iznik dish - British Museum. Dated 1540-1550.
4. Persian Pottery from the city Isfahan, 17th century.

Tracing its history is an amazing cultural trek across the Medieval landscape. And I love that kind of thing... Persian pottery ---- Islamic Moorish Spain---Renaissance Italy---then a jump to the left  (Is the Time Warp playing in your head now?) and into Victorian England where they really change it up... It's Maiolica in Italy. It's Faience in France. It's talavera in Mexico... I can't get enough!
1. An albarello (drug jar) from Venice or Castel Durante, 16th century. Approx 30cm high
2.  plate depicting the birth of Venus, by Francesco Xanto Avelli of Rovigo, 1533
3. Coppa amatoria depicting Elena Bella, majolica, from Castel Durante, Urbino, c. 1540–50
4. 
storiato decoration on a plate fromCastel Durante, c.1550-1570

1. detail of plate by William de Morgan Victorian era/late 1800's
2. G Jones majolica quail game tureen 
3. from Pinterest... sorry no details.
4. 19thc Victorian French Majolica Palissy Ware. Pike Fish Platter
And the modern contemporary era? Yes, many current potters are still using the age-old techniques in new ways, with modern aesthetic sensibilities! 
1&3 - Posey Bacopoulos
2 &4 - Linda Arbuckle

Are your eyes dazzled yet? Do you want to time travel to the Middle Ages and serve an apprenticeship? ( I do, but I'm an art history geek like that...)

Majolica isn't for everyone. Some pieces is so over the top, so ornate, so colorful. Embellished to a crazy place. But, you ask... where is the connection to Art Jewelry? 

Let me leave you with a teaser for my next post in 2 weeks. I have majolica pieces in progress - pendants and charms. These are part of the all-encompassing countdown to Beadfest. Stay tuned in 2 weeks - to see the results. I promise to post them - whether they are good, bad, ugly, or over embellished! 



Until then - have a colorful weekend.
Jenny 


www.jdaviesreazor.com
















Resources:

Friday, February 21, 2014

Freeform Friday - ready, glaze, fire!

Ready, glaze, fire! 


A photo essay of sorts this week... regarding my process of glazing pendants for a ^10 reduction* firing. I love ceramic clay, "real" clay as it is so elemental. Made of earth and water, it is tempered air and fire. There are many clays on the market, to be sure... but there is a magic, an alchemy in true ceramic clay and the transformations it goes through during the firing....

I work in two clays - stoneware and earthenware. The earthenware is a lower temperature clay, low fire glazes, brighter colors... another days topic, I promise. But make no mistake - still a fired ceramic clay -  fired to 1850 deg F, mind you!

At the ceramics studio where I work/teach we use stoneware; and we fire  "High fire" to ^10  - a toasty  2381 degrees F (1305 C)! The studio has a palette of glazes that we mix in house. They are made in 5 gallon buckets and are the correct consistency for dipping functional ware. I have the glazes I use most often in containers for brushing; I like them to be a bit thicker.  For my pendants - I glaze the top, and then wipe off the surface, leaving glaze in the designs. I showed the process below on a figurative sculpture:
1. Containers of glaze, and coffee! 2. Glaze brushed into designs. 3. Sponged off, leaving glaze in designs only. 4. Goddess figures ready for stain.
1. Pendants, bisques and ready. 2. Top surface glazed. 3. Edges and backs cleaned with a sponge. 4. Backs stained, holes cleaned of glaze.
 Since this is a communal kiln, loaded by the instructors - it needs to be streamlined, no fiddley stuff. There's no way to hang or stilt my pendants, so they are free of glaze on the back surface. In a group ceramics studio - the kiln is filled and fired as needed - when there is enough work ready to go. During a session in our studio, this is usually once a week. To be clear - firing the kiln TAKES a week! Not the firing itself...
Monday - load the kiln - 3 people, with breaks in the cold - app. 3 hrs. 
Tuesday - Fire the kiln. Varies due to ambient temps - app. 8-9 hours. 
Wednesday - the kiln cools. all day. 
Thursday - unload the kiln.
(Friday - no class) 
Pendants arranged on a piece of shelf for ease of kiln loading. 
Pendants visible midway up stack of shelves, on right side.
Can you still see the pendants? The kiln is almost half loaded here...
I believe the firing chamber is 5' tall at the center.


There is an air of excitement and mystery for every kiln unloading. The reduction process* creates a unique atmosphere in the kiln and results can vary every time.  Glaze application varies - thicker, thinner. So it is always exciting to see this:
After the door is removed, unblock the opening... 

Looks good! 

That carved tree? Its on the side of my shrine... and the pendants are at the bottom right corner of this picture. 

Success! Kiln harvest of the week.

I have probably written on this topic before - but I confess... its very exciting to have things in the kiln! I haven't had anything in the high fire glaze kiln since... November last year? These are new designs for pendants and components, stamps I carved from linoleum during the Polar Vortex days of January. And Berks Bead Bazaar is right around the corner.... So thank you for sharing in this week's journey! 

Jenny

www.jdaviesreazor.com



* Reduction Reduction (adjective) refers to a kiln atmosphere which does not have enough oxygen in it to completely consume the fuel as it burns. Due to this deficiency, the flame pulls oxygen molecules out of the clay bodies and glazes, changing their character. Reduction can be also be used to describe clay bodies and glazes that are especially developed for reducing atmospheres. Reduction (noun) refers to the state of being oxygen-starved. It can also be used to replace the full term, "reduction atmosphere".

For more information: 
( These are simple overviews, not in depth treatises... ) 
The firing process - bisque and glaze



Thursday, August 29, 2013

Folklore Friday - faience of Egyptian amulets



Welcome to the third, and final installment in the Ancient Egyptian amulet series. Today: the material faience. - prized for its intense blues and versatile for its inexpensive, even humble origins... 

I think my interest in faience is twofold. I love clay, and the alchemy of firing and glazing. I am continually inspired by Art History. And that color! I could dive in and get lost. It really resonates with me... 

To the right is William. Have you "Met" him? (Art history humor! Forgive me...) He is a famous piece in the Metropolitan's Egyptian collection. He has his own page in the shop!  How he became a celebrity I do not know - but he IS made of faience... 






The Egyptian word for faience is "tjehnet" meaning "shining, dazzling". Archaeological evidence dates the use of faience to as early as 3500 BCE. It was developed as a substitute for lapis lazuli and was used for beads, amulets, statuettes, bowls... 
Vessels, a shabti figure*, and a beaded netted collar


Comprised of finely ground quartz, lime, copper oxide, water, and a binder/gum arabic - this was a recipe of common ingredients, easily sourced in the area. The materials are mixed with water to form a paste, them molded or modeled and fired when dry. The paste is thixotropic - and hard to work with as it is much less plastic and malleable than clay. The interesting thing about this material ... it is self glazing!  The term is "efflorescence of glazing" - glaze materials ( water soluble alkali salts) are mixed with quartz. As the water evaporates, the salts migrate to the surface, recrystallizing on the surface. When fired= glaze. 

Knowing that - take a look at the detail in these amulets of Egyptian deities: 

In my research recently I have found recipes and may attempt mixing up a batch of Egyptian paste in the fall when I return to the Ceramics studio /classroom on my regular schedule. In the past I have used "Egyptian Paste" from art suppliers like Dick Blick. (At the writing of this article, I could not find this prepared version for sale. Recipes for making  from scratch are readily available with a Google search.)

 Its like trying to sculpt peanut butter - the consistency is so gooey! As per the ancient methods - I found bisqued ceramic molds the most user friendly: they are porous, and absorb moisture quickly, allowing the molded paste to release, and drop out easily.



The challenge is patience. The paste is best left alone... as the crystals form on the surface as the piece dries. Sometimes patience is tough... Shown here are a few samples done when researching this material.

I love the colors and the history of the materials. For all its quirks - I do think I am inspired to give it another go!

Thanks for following this exploration! I would love to hear what you think... 


Until next time - 

Jenny


www.jdaviesreazor.com



*The ushabti was a funerary figurine used in Ancient Egypt. Ushabtis were placed in tombs among the grave goods and were intended to act as substitutes for the deceased, should he/she be called upon to do manual labor in the afterlife. They were used from the Middle Kingdom (around 1900 BC) until the end of the Ptolemaic Period nearly 2000 years later.
References: