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survivability of ceramics

Posted: May 11th, '09, 14:53
by bonjiri
mrs chip. mahalo !

geek gurl. aloha kakahiaka !

yyy. if colors are not good or they fall over in the firing. some pieces are fired on shells and 'move' during the firing. there is attrition. the more risky pieces either 'work' or they are shards.

oh yes ! i do hammer pieces immediately when i unload. i have a hammer handy ! haha ! no seconds.

sanding. yes, the wadding on the bottoms of each piece that is loaded in soda or woodfire kiln needs to be removed then wet sanded. also so it doesn't damage the tatami ! or if placed on lacquerware. i always feel each piece. touching the kuchizukuri to make sure there are no burs.

sometimes things flying around in the kiln get stuck on the piece. like furikake ! HEHE ! albeit unwanted furikake !

sometimes i hear, "wait, wait..." seconds after the sound of the smashing ! haha !

no seconds !

close up of ash

Posted: May 11th, '09, 15:03
by bonjiri
Image

close up of ash

difficult to capture its translucency and color

its actually green, like an emerald !

Posted: May 11th, '09, 15:44
by coloradopu
nice stuff i can see the green

was wondering what was your loss rate on that last fire? 20% or more.

i get close to 10% but its electric fire a lot safer and more controlled you know.

i have a 5-20's tin white and want to add talc to it to try too get it to crawl but do not know were to start do you think an = amount of talc to tin or less. any input would be appreciated

firing loss

Posted: May 11th, '09, 22:17
by bonjiri
colorado

since the firing process of soda has more risk, i.e. pieces fired on the side, gravity and the inability to control the glazes.

i get about 50%

regular gas cone 10 is very predictable much like electric oxidation firing. 90-99%

or more. depends how the 'kiln gods' are treating me that day

aloha
c

Posted: May 12th, '09, 12:56
by bonjiri
Image

goblets with bordeaux style tops

aloha !

some other stuff

i'll post some teapots too !

aloha

c

teapot and photograph

Posted: May 12th, '09, 13:07
by bonjiri
Image

background. a little more information my day job, i'm a photographer. i work on commercial, advertising and a little editorial work. above is a project i'm working on, seasons of japan. the image above is made with a special 6 -lens pinhole camera.

since this is a ceramics area, i'll include a photograph of ceramics.


Image

my tools

Posted: May 12th, '09, 13:11
by bonjiri
Image

some of my handmade tools. most are from cocobolo. i cut the wood and hand shape each tool.

when i throw demonstrations or teach, i only use fingers, string, and a needle to check depth of the clay.

carved piece

Posted: May 12th, '09, 13:13
by bonjiri
Image

collaborative piece with friend, co-conspirator in clay, Diane KW

she is the carver and i'm the thrower, glaze captain and fire guy !

Re: teapot and photograph

Posted: May 12th, '09, 13:15
by Mrs. Chip
bonjiri wrote:
since this is a ceramics area, i'll include a photograph of ceramics.
OMG Cory, that teapot is incredible! I just love it!!!!!!!!!!!!!!
But then again you knew I would since I love shells! :wink:

And your photo is reminiscent of one of the Wallace Nutting photo/watercolors that Chip and I have hanging in our home. Delightfully awesome.

futaoki

Posted: May 12th, '09, 13:18
by bonjiri
Image

hand carved futaoki (lid rest)

inspired by teacher, friend ahLeon from taiwan.

Posted: May 12th, '09, 13:20
by Geekgirl
Beautiful cherry blossoms. It has been YEARS since I played with pinhole photography. I never produced anything remotely like that! Ha!

I've been watching Cory's photostream for probably a year, some amazing photography there - not just the ceramics. It's worth a look: One of my favorites.

right hand teapot

Posted: May 12th, '09, 13:20
by bonjiri
Image

right hand teapot

pours perfectly. shino w/ applied keawe ash.

chawan biidoro drip

Posted: May 12th, '09, 13:25
by bonjiri
Image

chawan w/biidoro

soda fired. actually an older piece about 1 year old

inside view of carbon trap yunomi

Posted: May 12th, '09, 13:28
by bonjiri
Image

yunomi inside

carved teapots

Posted: May 12th, '09, 13:30
by bonjiri
Image

carved teapots. collaboration w/ clay co conspirator Diane KW.

soda fired. each piece is about 9 inches high