Ivor and Olive Lewis on wed 30 jun 04
Dear Jim,
Accepted ! ! on all counts.
I believe, based only on my reading, for as I said I am unfamiliar
with Shino Style Compositions and their utilisation, that this is a
very complex topic to comprehend.
Before making even a tentative suggestion as to what is happening you
first of all have to establish that the glaze batch is full molten and
that all of its ingredients are in solution. Having done that your
next trials would establish Transformation and Thermal Data and you
would need to prepare specimens for petrological analysis. Analysing
this information would show if your hypothesis has credibility. Can
you afford to take a "sabbatical year"?
I still prefer the "Organised, Controlled Chaos" hypothesis.
Best regards,
Ivor Lewis.
Redhill,
S. Australia.
One of the first things to establish is that
----- Original Message -----
From: "Jim Murphy"
To:
Sent: Tuesday, 29 June 2004 11:39
Subject: Re: Yet Another Shino Question?
> Hello Ivor,
>
> << Thinking this way presupposes that abstract elemental oxides
behave as
> individual entities within a melting mineral.>>
>
> Not trying to redefine "melting behavior" as we understand it, Ivor.
Just
> attempting - in an apparently incoherent manner - to propose
> Alumina-solubility and subsequent mullite-needle crystal growth in
> high-Alumina Shino prevents "running" and may even be responsible
for Iron
> precipitation (the mullite-needle crystals "push" the Iron to the
glaze
> surface.)
>
> I offer no empirical data or evidence to support my Shino beliefs
and accept
> your "organised, controlled Chaos" suggestion.
>
> Best wishes,
>
> Jim Murphy
>
>
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