Jamie Yocono on thu 7 jan 10
Ron,
The clay is Aardvark's Black Mountain, and it was glazed with the
Floating Blue recipe that you reformulated for me a while back. I will
try to find it and post it here. It's been a really gorgeous, reliable
glaze for me with this body. Never have had a problem with it.
As far as where it was in the kiln - I believe this was near the
bottom of the kiln, maybe just one up from the bottom. There were
cones near it, and they looked perfect.
The pinging finally stopped...
Jamie in LV
Jamie Yocono on thu 7 jan 10
I'm hoping someone can tell me what's going on with a plate that I
pulled out of the kiln a few days ago. The kiln was totally cooled
down to room temp when I unloaded everything. It was a ^6 load, with
my regular clay bodies and glazes I've used many, many times.
But I have a plate that won't stop pinging. Or maybe it's more like
"ticking" and I can't figure out why it's doing that. I brought it
inside my house, washed it, and it's been ticking like an SOB for an
hour.
(Both of my schnauzers are sitting near it and watching it, because it
keeps making noises.)
I'm guessing thermal expansion, but .... from what? This firing was no
different from my past ones, and I've never really had this before.
Jamie in Vegas
____________
Jamie Yocono
Wood It Is! Custom Cabinetry
Las Vegas, NV
www.wooditis.com
My woodworking blog: www.wooditis.blogspot.com
Ron Roy on thu 7 jan 10
Hi Jamie,
Which glaze? and where was it in the kiln?
RR
Quoting Jamie Yocono :
> I'm hoping someone can tell me what's going on with a plate that I
> pulled out of the kiln a few days ago. The kiln was totally cooled
> down to room temp when I unloaded everything. It was a ^6 load, with
> my regular clay bodies and glazes I've used many, many times.
>
> But I have a plate that won't stop pinging. Or maybe it's more like
> "ticking" and I can't figure out why it's doing that. I brought it
> inside my house, washed it, and it's been ticking like an SOB for an
> hour.
>
> (Both of my schnauzers are sitting near it and watching it, because it
> keeps making noises.)
>
> I'm guessing thermal expansion, but .... from what? This firing was no
> different from my past ones, and I've never really had this before.
>
> Jamie in Vegas
>
>
> ____________
> Jamie Yocono
> Wood It Is! Custom Cabinetry
> Las Vegas, NV
> www.wooditis.com
> My woodworking blog: www.wooditis.blogspot.com
>
Fred Parker on fri 8 jan 10
Hey Jamie:
Most likely this is not really relevant to your problem, but I wanted to
post it for the benefit of anyone new to clay who might not be familiar w=
=3D
ith
one of its causes.
A few years ago when I was much more of a newbie than now I glazed some m=
=3D
ugs
with a very reliable ^6 glaze I had used successfully many other times.=3D2=
0=3D
Upon unloading the glaze kiln I noticed occasional pinging sounds coming
from somewhere in the load I had just placed on the dining room table. I=
=3D
would hear a single "ping" when I least expected it, then no more. A few=
=3D
minutes later, the same thing happened again, and again, and again...
After a maddening search to discover which item was pinging I found it wa=
=3D
s
glaze shivering off the ^6 terracotta-type stoneware I had tried in that
batch. I only discovered it by seeing a tiny little "shiver" on the tabl=
=3D
e
among the mogs. Closer examination revealed areas where the glaze had
broken loose. I did about six mugs with that clay and every one was
shivering little glass shards. Had to throw the whole batch out -- painf=
=3D
ul
because it was during the days when (for me) making just one decent mug w=
=3D
as
something to crow about. I never had (or have had) a problem with that
glaze before or since, but I stopped using that clay body.
Note to newbies: if you don't already know this, "shivering" is generally=
=3D
a
MUCH worse problem than crazing because it risks contaminating food or dr=
=3D
ink
with glass shards. If you need more info, ask. It's important.
Fred Parker
On Thu, 7 Jan 2010 12:28:11 -0800, Jamie Yocono wrot=
=3D
e:
>I'm hoping someone can tell me what's going on with a plate that I
>pulled out of the kiln a few days ago. The kiln was totally cooled
>down to room temp when I unloaded everything. It was a ^6 load, with
>my regular clay bodies and glazes I've used many, many times.
>
>But I have a plate that won't stop pinging.=3D20
SNIP
Jamie Yocono on fri 8 jan 10
Hi Fred,
Thanks for your response to my question about the pinging plate.
I'm not really a newbie, and I've certainly had my fair share of
shivering over the years. I guess my question was more about - what
could be causing something like that, when it's the same glaze, same
clay body, and same firing schedule.
It just seems like an odd thing to happen out of the blue, especially
since I've had much previous success with it.
Hmmm..... more $%@# to ponder!
Jamie in LV
| |
|
