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Found 11 results

  1. Hi, I have this problem of cracking or clay splitting when throwing in the wheel, pls find the attached picture and also, after firing at cone 08, the clay has a lot of surface cracks and sometimes structural cracks pls find the attached pic, pls advise why this is happening and how to avoid this in future. Thanks.
  2. Hi, We have been doing the jigger for the first time and the pieces whatever we are making have a cracks in a same pattern in a same location, and we are using Terracotta clay to make the pieces and here I m attaching the cross sectional pieces of the molds., and in the molds I have few doubts and I would like to get clarified so that I can reduce the cracking doors one by one., Does the thick and thin portions of the molds absorbs water differently so that the pieces are cracking ? As you can see the picture of the pieces the cracks are happening in the place where the side wall is connecting with the curved edges, and the cracks are happening only with our terracotta clay and we have tried quite a lot of receipes to avoid cracks but nothing is helping out and the cracks are happening in the inside of the pieces and the outside wall is just fine. Also we have tried jiggering few pieces with our stoneware clay and we havent have any cracks in the stoneware. Does the uneven wall thickness is the reason to get the cracks ? Wi only the Terracotta is cracking and not the stoneware ? Wi the inner wall is cracking and it didnt extend to the outer wall ? Does it anything to do with the plasticity and the composition of the clay? As far as the design is concerned, we make sure theres no undercuts in the design and even the wall is not striaght and it has an angle of 10% for easy releasing., we used to have few issues with our clay body which I was working with Tom (Glazenerd) to solve the issue, but apart from that I would like to know what are the other possible reasons for the cracking.
  3. Hey!!I'm Malinda from sri lanka. please share your ideas about particle size distribution of clay roofing tile production.
  4. Hi there, I'm pretty new to glazing and looking for help. I've always been in love with Lucie ries work and have been trying to create a beautiful black glaze of hers made up of equal parts manganese dioxide and red clay. I'm not even sure you can call that a glaze which maybe why I'm having problems with running. The glaze looks beautiful but it runs! Is there anything I can do to stabilise the glaze while keeping the beautiful finish. I am firing it over earthstone original clay in an electric kiln to 1230. Up to 600 at 60/hr then at 100/hr up to 1230. Does anyone have any suggestions to help? I also wondered if anyone might know of a way of making this food safe? Can you layer a clear glaze over it? Appreciate your advice.
  5. From the album: Pottery 2016

    © Copyright 2016 Giselle No. 5 Ceramics - Giselle Massey - All Rights Reserved

  6. SydneyGee

    Turquoise And White Matt Foot Bowl

    From the album: Ceramics Fall 2016

    Turquoise stone and white matte on a dark red clay body. I threw the foot separately and attached when leather hard. It is slightly off balance, but will look nice holding my mini hanging succulents in the garden.
  7. SydneyGee

    Calico Sake Set

    From the album: Ceramics Fall 2016

    Bisqued Sake set. This was glazed in tenmoku and I will grab photos of them later today. Since my work is fired in a classroom setting, all my cups were placed in different areas of the kiln, so each one looks slightly different.
  8. SydneyGee

    Turquoise And White Matt vases

    From the album: Ceramics Fall 2016

    Turquoise stone and white matte ^6 ox on calico dark red clay. A couple very wonky vases that developed decent sized cracks from uneven drying, this was one of the first things I made after taking a hiatus of 3 years from clay, be gentle! I needed to keep a few unsatisfactory pieces to try my experiments. I am totally head over heals in love with the color combo, but am very sad all the pieces developed pin holes on them... I talked to the professor and she is going to go over how to avoid that next time and keep my work together as to have a more consistent firing.
  9. GiselleNo5

    Mountains Sponge holder

    From the album: Wheel Thrown Work, 2015

    This sponge holder is made with B-Mix clay. I slip trailed a design of mountains in red slip, then moon and stars in white. The whole piece was glazed in a lovely denim blue glaze that I borrowed from my dad's studio. I'm going to get my own pint.

    © Copyright Giselle Massey 2015 All Rights Reserved

  10. Cavy Fire Studios

    The Terracotta Thread!

    Okay. I have seen some dee-lish-us and positively drool-worthy stoneware and porcelain work on this forum, but I'm kinda wondering something... Where are all my terracotta-luvvin' buddies at?! I feel kinda by my lonesome here! Give a shout and post some pics of your iron red glory! Here's a mug I did with white slip and underglaze. Fired to sitter ^03 to make it a wee more vitreous. ♥ What's your favorite thing to make with terracotta?
  11. Hi: I made several pieces using a red clay. Does anyone have suggestions for raku glazes that will work well/look good on red pieces? Thanks.
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