Lawrence Ewing on thu 16 dec 99
Hi Everyone,
Thought I would let you all know that I have finished work on a new course
in basic glaze technology for beginners. I have placed it on its own web
site for everyone to access. You do not need to download anything ... just
enter the following URL:
http://home.clear.net.nz/pages/GlazeTeach
This is a study programme designed for those who do not have a chemistry
background and who know little or nothing about glaze theory. The course
starts at the very beginning addressing basic principles in simple language.
Examples are occasionally given of how Matrix deals with some of the
processes but it is not a tutorial on how to use Matrix.
This study programme is freely offered in the hope that it will aid those
who have expressed a desire to learn more about fundamental glaze concepts.
The programme is far from perfect. Those with a little more knowledge on the
subject will, I hope offer constructive criticism so that the service can be
further developed and improved both in content and in design.
Best wishes to all those fine, patient people on this list who give their
time and knowledge so freely to others in need.
Have a Happy Christmas.
Lawrence Ewing
Senior Lecturer
Ceramics Department
School of Art
Otago Polytechnic
Dunedin
New Zealand
email: lewing@clear.net.nz
URL: http://www.tekotago.ac.nz/art/matrixgoweb/default.htm
Veena Raghavan on fri 17 dec 99
Hi Lawrence,
I am sure I speak for many people who are not knowledgeable about
glaze technology, are eager to learn, but find some of the technical talk
and text (Clayart and books) a little above their heads (at least this is
true in my case). I do understand quite a lot, but when it comes to the
calculations, the moles and so on, I am a little at sea.
I accessed you website today, did not have time to go through the
entire course, but did look at the first ten pages, and I think I already
understand more, this being in the last part of those pages. I want to
thank you for trying to simply things for me (may I be presumptuous and say
us?). In my case, I sort of need a glaze making for dummies. Your
explanations are simple and easy to understand.
I spend more time when I can. In the meantime, thank you very much, happy
holidays and all the very best for the New Year.
Veena
Veena Raghavan
75124.2520@compuserve.com
Jeremy/Bonnie Hellman on sat 18 dec 99
Hi Lawrence,
I found it easy to read and very helpful to go through your tests in your
basic glaze technology course mentioned below. I've not had any formal
courses in glaze technology, but I've been coming to an understanding about
glaze formulation over several years. I consider myself well qualified to
take your course! And I'm very glad I did.
However I found several answers puzzling, even after re-reading your text.
If you have a few minutes, could you elaborate on why
http://home.clear.net.nz/pages/GlazeTeach/Unit_6/Tests/Test_6_24.htm
why the correct answer to the question of which is false regarding the
action of B2O3 in a glaze, is that "while acting as a flux it is also a
glass former". I really thought that the correct answer is that it is false
that "it can only be introduced into a glaze by using a frit".
I use gerstley borate as well as frits as my B2O3 source, and your reference
Unit 6, Topic 13 discusses how at low temperatures B2O3 is a glass-former
and flux.
http://home.clear.net.nz/pages/GlazeTeach/Unit_6/Tests/Test_6_18.htm
Q-What is the main reason for having alumina in the glaze?
Your answer is- Lower the melting point of the glaze and stabilize the flux.
In the discussion of Aluminum oxide, you talk about its high melting point,
and you have a sentence that it "Increases viscosity and extends the melt
range." I always thought alumina was the glaze stabilizer but I missed the
part about its lowering the melting point of the glaze in your text. So my
first answer was the phrase about "increases viscosity and extends the melt
range." If it is not the correct answer, are you saying that this is not the
PRIMARY function of alumina in a glaze? At the very least, I found this
answer confusing.
Sorry if this sounds like I'm nit-picking, but I'm really trying to
understand!
Bonnie
Bonnie Hellman in Pittsburgh, PA, USA
> From: Lawrence Ewing
> Reply-To: Ceramic Arts Discussion List
> Date: Thu, 16 Dec 1999 17:13:00 EST
> To: CLAYART@LSV.UKY.EDU
> Subject: GlazeTeach - On Line Glaze Tech Instruction.
>
> ----------------------------Original message----------------------------
> Hi Everyone,
>
> Thought I would let you all know that I have finished work on a new course
> in basic glaze technology for beginners. I have placed it on its own web
> site for everyone to access. You do not need to download anything ... just
> enter the following URL:
>
> http://home.clear.net.nz/pages/GlazeTeach
>
> This is a study programme designed for those who do not have a chemistry
> background and who know little or nothing about glaze theory. The course
> starts at the very beginning addressing basic principles in simple language.
>
> Examples are occasionally given of how Matrix deals with some of the
> processes but it is not a tutorial on how to use Matrix.
>
> This study programme is freely offered in the hope that it will aid those
> who have expressed a desire to learn more about fundamental glaze concepts.
>
> The programme is far from perfect. Those with a little more knowledge on the
> subject will, I hope offer constructive criticism so that the service can be
> further developed and improved both in content and in design.
>
> Best wishes to all those fine, patient people on this list who give their
> time and knowledge so freely to others in need.
>
> Have a Happy Christmas.
>
> Lawrence Ewing
>
> Senior Lecturer
> Ceramics Department
> School of Art
> Otago Polytechnic
> Dunedin
> New Zealand
>
> email: lewing@clear.net.nz
> URL: http://www.tekotago.ac.nz/art/matrixgoweb/default.htm
Mike Gordon on tue 4 jan 00
Hi Glaze Wizards,
I ran across this and found it interesting, but don't know if it will be
of help or interest to others but offer it anyway. Mike
* Chemical Elements.com
http://www.chemicalelements.com/
Chemistry students can benefit from this interactive version
of the Periodic Table of the Elements. You can switch among
several table views, featuring element names, atomic
numbers, atomic mass, electron configuration, and more.
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