• Korean Journal of Heritage: History & Science
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• v.40
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• pp.35-72
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• 2007

Since three has never been any incidence of having investigated kilns for firing soft stoneware in the proto-three kingdoms period so far, how they structured by reviewing historic literature and material was preconsidered in this study. It is presumed that after both Gimhae Daeseongdong-type and Sacheon Bonggyeri-type kilns for firing earthenware coexist early, through an internal alteration process which is mutually complex and momentous, the floor of plastic room has been flattened or slanted and expanded little by little into the closed-kiln structure. It seems that the structure of kilns for firing soft stoneware was a horizontal combustion type(水平燃燒式) and its plane shape was close to being rectangular in shape unlike that of kilns for firing stoneware found in Honam and Hoseo province in the period of (proto-) three kingdoms. On the other hand, it is likely that the horizontal combustion type structure of kilns for firing stoneware excavated in Samyong-ri, Jincheon preceded the vertical combustion type(垂直燃燒式)that of kilns for firing stonewere found in Sansu-ri. In addition, the term, monumeut for firing earthenware must be changed to kiln for firing earthenware and the terms of Pyeungyo(平窯) and Dyengyo(登窯) can be applied to kilns for firing tiles. Thus, it does not seem likely that the absolute equality that Wajil earthenware(soft stoneware) pottery is Pyeungyo and stoneware pottery is Dyeungyo is applied in all cases.

• Journal of Conservation Science
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• v.32 no.4
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• pp.449-457
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• 2016

A stoneware bottle was recovered from the Incheon Yeongheungdo Shipwreck in 2013. Primary observations showed that this object had a sealed opening and was covered with a foreign material. After it was cleaned via mechanical and chemical methods, wave patterns were observed on the outer surface of the bottle and a yellowish-brown transparent material was found within. In this paper, the process of conserving the stoneware bottle and the analysis conducted on the unknown material found within is explained. The conservation process included steps such as cleaning, desalination and restoration. After of the missing area located at the rim, the original shape of the bottle was made clear. In addition, the unknown inner material was analyzed using FT-IR and GC-MS. Results showed that the material is similar to golden lacquer. It is speculated that the Yeongheungdo Ship had wrecked during the Unified Silla period while carrying a bottle loaded with golden lacquer.

• 한국문화재보존과학회:학술대회논문집
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• 2006.04a
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• pp.4-9
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• 2006

• 한국문화재보존과학회:학술대회논문집
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• 2006.04a
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• pp.10-15
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• 2006

• 한국문화재보존과학회:학술대회논문집
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• 2005.11a
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• pp.173-178
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• 2005

• Journal of the Korean Society of Food Culture
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• v.9 no.2
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• pp.119-124
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• 1994

The kitchen utensils, a part of dietary life, are tableware and everything needed for cooking, storing foods, arranging and housekeeping. This study has been made on the classification in comparison with utility regarding both the shape and the quality of material. The classifications by the quality of material were ceramicware, woodenware, metalware and stoneware. he classifications by the utility were utensils for cooking, utensils for storing and keeping, utensils for arranging, utensils for grinding and utensils for special use. At the stage of migrating and gathering provisions they needed only simple utensils, but by cultivating, fixing their residence and producing crops they prepared and developed all sorts of kitchen utensils to serve various purposes, social rank, poverty and wealth, season and ceremony.

• Journal of Conservation Science
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• v.35 no.6
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• pp.573-587
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• 2019

In this study, reproducing specimens were made from mixing domestically produced magnetite, clay and non-plastic raw materials to reproduce the pigments used in the manufacture of traditional cheolhwa buncheong stoneware. In order to reveal the color fomation of glaze, 30 specimens with good color development were analyzed scientifically. Magnetite, which is the main raw material of the pigment, is a pigment capable of creating a dark black color in a reducing environment at 1,200℃. However, it reacts with the additionally added lime component and discolors to greenish yellow color in oxidizing environment at 1,230℃. Hematite is not significantly affected by the firing temperature and environment, but develops a dark black color when mixed with clay with iron content of more than 10%. The fluidity of the pigment is determined by R₂O₃/RO₂ value, which also affects the color development. In the microtexture observation, the color formation of the glaze layer and the iron oxide crystals identified some differences depending on the particle size of the pigment and the firing environment. Reproduced specimens made of magnetite are present in the form of aggregates of iron oxide in the interface between glaze layer and slip layer in the oxidizing environment at 1,200℃. However, in the reducing environment, aggregates of iron oxides do not exist in the reproduced specimens, and they are homogeneously distributed in the glaze layer and formed a dark black color. In contrast, hematite-based specimens form dendritic structures in the glaze layer in an oxidizing environment and develop black.

• Journal of the Korean Institute of Gas
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• v.22 no.4
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• pp.7-12
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• 2018

Hydrogen energy has been attracting attention as an alternative energy source for petroleum and stoneware. In addition, the benefits of hydrogen energy, such as no dust, abundant energy source and no ecological impact, were to compare favorably with other renewable energy sources. However, unclear product development standards and usage of hydrogen energy increase the risk of accidents in hydrogen energy related product lines. And, the high energy level of hydrogen has implications for large social problems in the event of an accident. Therefore, this study suggests the standardization method of fast hydrogen energy to help secure the safe market of hydrogen energy related products, which are mostly developed new products.

• KOMUNHWA
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• no.59
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• pp.64-87
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• 2002

The Burial of the living with the dead in Yeongnam Region began to appear between the late 3rd and the early 4th centuries when dramatic social changes, such as the emergence of fortresses, stoneware, and the division of Gyeongju style and Gimhae style ou

• Journal of Conservation Science
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• v.26 no.3
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• pp.213-228
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• 2010

The composition of Chinese ceramic shards has been the subject of analysis in Europe, beginning in the 18th century, and in China from the 1950s. Scientific studies of traditional Korean shards commenced in the United States and Germany in the 1980s, and studies within Korea began in the 1990s. From analysis of a large systematically collected dataset, the composition of porcelain produced during the Kory. dynasty, including 21 celadon and 10 whiteware groups, was characterized and compared with that of Chinese ceramics. The average composition of the body and glaze of several shards (usually three to five) from each group was determined, enabling comparisons between groups. The results show that the majority of groups were derived from mica-quartz porcelain stone, which was commonly used in Yuezhou, Jingdezhen, and other southern Chinese kilns. The composition of glazes includes clay and flux components; the latter were typically wood ash and limestone, initially as burnt but later as crushed forms. The earliest of the Kangjin glazes contained substantially less titanium oxide than did the Yuezhou glazes, which were typically formulated from body material and wood ash. The present study provides a comparative framework for the growing number of analytical investigations associated with excavations occurring in Korea.