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Mudlark

Member Since 04 Apr 2010
Offline Last Active Oct 18 2014 09:04 PM
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Posts I've Made

In Topic: Kiln Flue Gas Analysis

27 November 2013 - 04:56 PM

Thanks for your response I now have something to follow up on.

In Topic: Now That I Know How To Cut Ceramics, How To Drill Them?

23 November 2013 - 11:31 PM

Lapidery suppliers stock silicone carbide grit. I use 600 mesh as I have it on hand having  bought it for another purpose, a coarser mesh would do just as well.

 

 Brazing rod is used  to join metals by heat and can be bought at plumbing suppliers, use one that is not covered in a flux, it looks like brass rod. Any non ferrous metal rod of the desired diameter will do.

 

Plasticene is a trade name for  an oil based modelling clay used by sculptors and model makers not to mention school kids. It's used as it does not wash away with the cooling water as potters clay does.


In Topic: Now That I Know How To Cut Ceramics, How To Drill Them?

21 November 2013 - 12:46 AM

I use silicon carbide grit. Use a brass or copper rod of the desired diameter as the drill bit(brazing rod is suitable). Make a plasticene dam around the spot where the hole is to be made,add grit and water. Do not press too hard, replenish water as required and support the underside of the material being drilled otherwise the drill will break through leaving a ragged area around the hole. Repeatedly withdraw the drill to permit new grit and water penetrate to the cutting surface.Wear ear defenders and goggles.

In Topic: Coe

24 September 2013 - 07:42 PM

Taylor and Bull discuss thermal expansion in detail in their book Ceramic Glaze Technology, including a simple series of tests using an electric oven and water to determine the resistance to crazing of a sample glaze.

Book details:

Library of Congress Cataloging-in-Publication Data

Taylor.J.R.

Ceramics glaze technology

Includes bibliographical references

1.Glazing (Ceramics) 2.glazes. 1.Bull.A.C

11.Title

TP812. T39 1986 666'.444 85-29700

 

It is worth chasing up your local library to get this book on loan as it also answers many other questions that crop up when you experiment with glazes.


In Topic: My first teapot

03 July 2013 - 07:23 PM

My very first attempt at a tea pot. I had to share with someone who (might!) care.

Alice

Alice it looks remarkably like my first attempt and has the same fault - the spout is too low ! As I filled it up the water poured out. I still have it after 30 years to remind me to think things through, not that it always works but that is one of the attractions of ceramics there is always something new to learn.
Mudlark