Tag: iron

Testing Results

~ Sebastian ~ Leave a comment

I’m very happy with the test results. Tweaking these recipes in my cone 8 kiln so that I can get as close to possible before taking up precious room in the big gas fired cone 10 reduction kiln. All of these recipes are based on the Leach 40 – 30 – 20 – 10 recipe method which so far seems very stable. Getting the specific gravity dialed in is important.

Testing rolls right along

~ Sebastian ~ Leave a comment

So I’ve got all the chemicals I need to make a vast amount of glazes in my simple palate and color range. Testing to cone 8 in my electric kiln so I can tweak it as close as I can before putting it into the big gas fired kiln at cone 10.

  • Zircopax white over temmoku
  • White over Celadon
  • Temmoku over Celedon with a dip into the red iron oxide (FE2O3) as a differentiator test
  • Clear glaze by itself
  • Zircopax white by itself.

Im really excited about these simple glaze combinations. Along with red wild clay slip from the lake and black slip that goes to cone 10 I have a wide range of decorating possibilities to play with.

Previous Celadon glaze tests with incrementing FE2O3 from 2% to 12%


Testing the specific gravity of the glaze with hydrometer.


The only thing I may want to do different is to get more flux into the white glaze to have it run, almost like a Nuka style glaze over Temmoku.

John Britt’s Complete guide to High Fire Glazes has enough information to keep me busy for many years! Big thanks to Jay Benzel of Benzel Pottery for loaning it out to me.

Another thing I was working on was pulling technique and made a nice delicate serving spoon. Beautiful right?!

Not anymore! Haha! The spoon is just a spoon.  That’ll learn me to put stuff on the counter!

A visit to The Mason-Scharfenstein Museum of Art

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In researching tea ceremony for a client I came across a ceramics show held at the Mason-Scharfenstein Museum of Art at Piedmont College. It is a beautiful museum and the curators are friendly and knowledgeable. I was asked by some friends to make a few pictures so I decided to blog it.

JAPANESE POTTERY

The rising generation from traditional Japanese kilns

Arita and Karatsu Ware – Imaizumi Masato – Porcelain bowl with maple leaf motif in black, blue, and silver
Hagi Ware – Yomato Tsutomu – Bowl with engobe and gold leaf decor
Hagi Ware – Nakazato Taki – Decorated Karatsu fresh-water jar
Hagi Ware – Nakazato Taki – Nanban jar
Hagi Ware – Miwa Kazuhiko – Dreams in White
Hagi Ware – Kaneta Masanao – Pounded, hand-hollowed vase with engobe
Hagi Ware – Kaneta Masanao – Pounded, hand-hollowed vase with white glaze and kiln effects
Hagi Ware – Kaneta Masanao – Pounded, hand-hollowed vase with white glaze and kiln effects – Detail
Bizen Ware
Kyoto vicinity and Tamba – Okumura Hiromi – White glazed “vessel”
Kyoto vicinity and Tamba – Ichino Genwa – Platter with slip decor
Bizen Ware – Yamamoto Ryuichi – Vase with kiln effects
Kyoto vicinity and Tamba Ware – Ichino Masahiko – Vessel with .inear motif
Kutani and Kanazawa Ware – Ohi Toshio – Ceremonial vessel, Ohi glaze
Kutani and Kanazawa Ware – Ohi Toshio – Fresh-water jar, Ohi white Raku glaze
Kutani and Kanazawa Ware – Miyanishi Atsushi – Blue-glazed vase with wave motif
Kutani and Kanazawa Ware – Yoshida Yukio – Large bowl with overglaze enamel and gold decor
Seto and Mino Ware – Hori Toshiro – Iron-glazed jar
Seto and Mino Ware – Saki Hiroshi – Bluish Shino Jar
Seto and Mino Ware – Suzuki Satoru – Large Oribe Jar – Detail
Seto and Mino Ware – Suzuki Satoru – Large Oribe Jar
Seto and Mino Ware – Hori Toshiro – Iron glazed Jar
Seto and Mino Ware – Hori Toshiro – Iron glazed Jar – Detail
Seto and Mino Ware – Nagae Shigekazu – Glazed vessel built of thin layers
Seto and Mino Ware – Nagae Shigekazu – Glazed vessel built of thin layers – Detail
Seto and Mino Ware – Kurosawa Yuichi – Large Oribe bowl – Detail
Seto and Mino Ware – Ito Hidehito – Oribe bowl
Tokyo vicinity and Mashiko Ware – Hirose Yoshiyuki – “Soaring” large square plate with overglaze and enamel decor – Detail
Tokyo vicinity and Mashiko Ware – Nisaka Mitsukuni – Unglazed bowl with slip decor
Arita and Karatsu Ware – Inoue Yasunori – Bowl in overglaze enamels with carved decor

The installation runs through the end of January. A special reception featuring a gallery talk by Ohi Toshio, one of the artists included in the show, will be held from 5–7 p.m., Jan. 22., 2015. He is an eleventh generation Ohi Master.

Ohi Toshio has even given a Ted Talk

Chronological List of Masters
Genenation Master’s name Other name
First Ohi-Chozaemon Hodoan 1630-1712
Second Ohi-Chozaemon Hodoan 1686-1747
Third Ohi-Chozaemon Hodoan.Kanbei 1728-1802
Fourth Ohi-Chozaemon Doan.Kanbei 1758-1839
Fifth Ohi-Chozaemon Hodoan.Kanbei 1799-1856
Sixth Ohi-Chozaemon Sakutaro 1828-1856
Seventh Ohi-Chozaemon Michitada 1833-1896
Eighth Ohi-Chozaemon Yuigensai.Sosyun 1851-1927
Ninth Ohi-Chozaemon Todosai 1901-1986
Tenth Ohi-Chozaemon Toshiro 1927-
Ohi-Toshio 1958-