• KOMUNHWA
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• no.70
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• pp.133-161
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• 2007

It is judged that celadons with '○' pattern and '⊙' pattern have the indication of manufacturer by engraving mark at the internal center of the bottom. These celadons were produced at No.8.23.27 kiln sites located at Sadang-ri(사당리), Daegu-myon(대구면), Gangjin-gun(강진군), Jeollanamdo(전라남도), Korea and '⊙’ patterned celadon porcelain was found only at No. 23 and 27 kiln sites, so it is assumed that its production sites were limited. Kinds of celadons included bowl, dish, cup, bottle, case and vessel for emptied wine and there were a lot of dishes with a variety of patterns. These celadons were engraved by molded design technique using the same ceramic design as the pattern of celadons in the period of their prosperity and it was appropriate method to produce celadons of a good quality with production method to keep decorative design like pattern or size uniformly. It was also found that inlay method was not universalized in this period and similar celadons were produced with molded design in large quantities. These celadons had partially fire clay temper, but most of them were burnt by supporting the inner bottom of U-type base with quartzite after whole glazing. It was known through relics excavated at Seokreung(석릉) royal tomb of King Heejong(희종) at Ganghwa(강화) and Hyeeumwon(혜음원) temple site at Paju(파주) and military house at Wakamiyaoji(약궁대로) avenue Kamakura(겸창)-city, Japan(일본) that these celadons were manufactured at two quarters of the 13th century centering around 1230s. Therefore, these celadons will be significant materials to fill the gap of the celadons in the 13th century resulted from the record chronologically that green celadons were manufactured in the 12th century. And this period was invaded by Mongolia(몽고), but central control was achieved and green celadons were continuously produced. It was also considered that these celadons were excavated at Gabgot-ri(갑곶리) and Gwanchung-ri(관청리), Ganghwa(강화), Hyeeumwon temple, Paju which played the role of temporary palace, Bu1guksa(불국사) temple at Gyeongju(경주), Silsangsa(실상사) temple at Namwon(남원) and relics of Jangheung(장흥) adjacent to Daeguso(대구소) and these were produced for high class.

• Korean Journal of Heritage: History & Science
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• v.41 no.2
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• pp.61-78
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• 2008

Celadons painted in underglaze iron brown 'Sung(成)' inscription are characteristic celadons excavated only at the No. 7 kiln site located at Sadang-ri(沙堂里), Daegu-myeon(大口面), Gangjin-gun(康津郡), Jeollanamdo(全羅南道), Korea and has inscription in the inner center of the foot by brush. The inscription was marked where it is not easily seen. it can be assumed that since it showed a variety of hand writings, many people were involved in manufacturing these celadons and the 'Sung' inscription was marked after workshop rather than manufacturer. It was also found that quality of glaze, paste, shape, pattern and firing method were same and these were manufactured with the same techniques in the same period. Kinds of these celadons were mainly sets of tablewares including bowl with handle, bowl, plate, cup, bowl with cover and bottle. Raised relief designs using extrusion technic were especially preferred rather than incised designs and inlaid designs. Cases of using inlaid designs were not frequently found compared to incised designs, thus it can be assumed that in this period, inlaid designs were not generally used. Special designs having the meaning of authority or dignity such as chrysanthemum, peony, parrot and lotus plate designs were not found. Foot was molded with 'U' type except some bowls with cover and plates and firing was done after glazing the whole surface of the ceramic with the support of quartzite at 3 to 4 places of inner bottom of foot. Production period of these celadons with 'Sung' inscription can not be confirmed from other excavation sites outside of No. 7 kiln site at Sadang-ri since there are no other excavation sites whose relics bear 'Sung' inscription. Through comparison research with other relics bear the characteristics of these celadons from tombs, temple sites, shipwrecks, production period of these celadons with 'Sung' inscription can be assumed as second quarter of 13th century. And since the quality of these celadons are generally inferior to the top-quality celadons which were supplied to royal familes and high-ranking aristocrats, it can be deducted that these celadons with 'Sung' inscription were supplied to classes lower than royal familes and high-ranking aristocrats. So it is considered that Celadons with 'Sung' inscription have a great significance as a chronological material to complement the blank of the first half of the 13th century because most of celadons with raised relief designs and engraved relief designs were attributed to 12th century, the period of prosperity.

• Korean Journal of Heritage: History & Science
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• v.50 no.4
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• pp.38-63
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• 2017

This study sets out to investigate the installation of royal kilns and its impact on local kilns, taking note of celadon vase with inlaid cloud pattern in Joseon Dynasty. For that purpose, it determined the kilns and period to produce celadon vases with inlaid cloud pattern, and compared them with the pattern, design, and deformity of the celadon vases produced in the royal kilns in the 15th centuries. The celadon vase with inlaid cloud pattern was superior in quality than the porcelain for tribute ware manufactured together in Jeolla Province before the installation of royal kilns. And then a majority of sagijangs at local kiln had difficult time securing enough supply of manpower and resources, and discontinued manufacturing the celadon vase with inlaid cloud pattern. En revanche, celadon vases with inlaid cloud pattern produced from specially fixed royal kilns reflected the local sagijang's skill. Local kilns were strongly influenced by the installation of royal kilns. Those could not freely use high-quality white clay, limited to the market. Besides, most of the skillful sagijangs were assigned to royal kilns. Celadon vases with inlaid cloud pattern can be used as evidence to show that the manufacturing technique was transferred from local kilns to the royal kilns as well as to show that their production in royal kilns soon became stabilized.

• Journal of Conservation Science
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• v.34 no.5
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• pp.345-358
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• 2018

The purpose of this study is to analyze the characteristics of low-grade 12th-century celadons, which were excavated from a kiln site in Noksan-dong, Busan. The physical and chemical properties of the body and the glaze are evaluated through scientific analyses. All the selected celadon shards have a similar body color, regardless of the kiln from which they originated. The celadon shards from 2 3 kilns are brighter than those from 4 5 kilns, and there are two saturations, namely gray and brown. The brightness of the glaze shows a high contribution of red and yellow. The porosity of the selected shards is 8.8% in the gray saturation and 16.1% in the brown saturation. The major chemical compositions of the body and glaze are in the typical chemical composition of the celadon, but the $TiO_2$ flux contents are different. The visible characteristic difference between the 2 3 kilns and the 4 5 kilns can be attributed to the mixing and the firing process rather than the raw materials used. The difference in the $Fe_2O_3$ and $K_2O$ flux between the 2 3 and 4 5 kilns can be attributed to changes in the ingredient combination during the process. In conclusion, Noksan-dong celadon could not be easier vitrification due to the manufacturing process that primary burning process, It is highly likely that there were process differences in kilns to produce high quality celadon.