• 한국세라믹학회지
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• 제45권9호
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• pp.561-566
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• 2008

Carbon fiber fabric-silicon carbide composites were fabricated by liquid silicon infiltration (LSI) process. The porous two-dimensional carbon fiber fabric performs were prepared by 13 plies of 2D-plain-weave fabric in a three laminating method, [0/90], [${\pm}45$], [$0/90/{\pm}45$] lay-up, respectively. Before laminating, a thin pyrolytic carbon (PyC) layer deposited on the surface of 2D-plain weave fabric sheets as interfacial layer with $C_3H_8$ and $N_2$ gas at $900^{\circ}C$. A densification of the preforms for $C_f-Si-SiC$ matrix composite was achieved according to the LSI process at $1650^{\circ}C$ for 30 min. in vacuum atmosphere. The bending strength of the each composite were measured and the microstructural consideration was performed by a FE-SEM.

• 비파괴검사학회지
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• 제23권5호
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• pp.429-438
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• 2003

본 연구에서는 연속형 일방향 및 수자직 유리섬유강화 복합재료로 인장 시험편을 만들어 AE 특성에 대한 섬유배향 효과를 살펴보았다. AE 신호들을 STFT 처리하여 특성별로 분류하였으며, 반사식 및 투과식 편광현미경을 이용하여 시험편의 손상영역을 관찰하였다. 저주파수 대역의 약한 AE 신호들은 모재 및 계면에서의 손상으로 나타났으며, 높은 진폭의 고주파수 대역 AE 신호들은 섬유 파단에 기인하였다. 섬유 파단 과정에서 발생하는 고진폭의 AE 사상률을 기본 특성 데이터로 하여 다른 섬유배향과 노치방향을 가진 복합재에서의 파괴과정을 특징지을 수 있었다. 결론적으로, AE범은 연속형 유리섬유 강화 복합재의 파괴거동을 탐지하는데 있어 유용함을 알 수 있었다.

• 대한가정학회지
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• 제40권3호
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• pp.11-20
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• 2002

The purposes of this study were to investigate the subjective wearing sensation of sleepwear, and to evaluate the comfort properties of fabrics used in the sleepwear. Design of experimental clothing was pajamas made with four types of woven fabrics: plain weave and satin weave made by cotton and polyester. The comfort properties were evaluated with respect to thermal retention, Qmax, moisture regain, water vapor transmission, and air permeability. The wear trials of experimental clothing were performed in two different environments, single-detached unit($23{\pm}1^{\circ}C$, $45%{\pm}3%$ R.H.) and apartment($27{\pm}1^{\circ}C$, $40{\pm}3%$ R.H), to evaluate microclimate temperature and humidity, and subjective wearing sensation. The results obtained from this study were as follows: 1. There were significant differences between the two environments on the clothing microclimate. 2. In the single detached unit environment, the microclimate temperature who wore cotton sleepwear was significantly higher than that of subjects wore the polyester sleepwear, whereas the microclimate humidity who wore polyester sleepwear was higher than that of subjects wore the polyester sleepwear. 3. In the apartment environment, the microclimate temperature who wore the polyester sleepwear showed higher than that of cotton sleepwear, whereas there was no significant difference between the cotton and polyester sleepwear on the microclimate humidity. 4 There were partially significant differences in subjective wearing sensation according to the fiber md weaving type of sleepwear regardless environment. 5. There were also partially significant correlations among the heat/moisture transmission properties of fabrics, the clothing microclimate and the subjective wearing sensation of sleepwear.

• 복식
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• 제59권6호
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• pp.29-40
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• 2009

On April 28th of 2006, a set of Buddha's reliquary was excavated from the pagoda in n Nacsan Temple. According to the record, the relics were put in the pagoda in the 18th year of King SookJong in the Chosun Dynasty (1692). The present paper examines ten pieces of wrapping clothes covering reliquary found in the pagoda. They are especially precious data in the history of textiles because they were blocked off from outside and was preserved in good condition with vivid colors still remaining after more than 300 years. Of the ten pieces of wrapping cloth, five were double-layered and the other five were single-layered. They include 15 pieces of silk fabric but, excluding repeated use of the same silk fabric, the total of 11 pieces of silk fabric were examined. All 11 kinds of silk fabric were patterned, 9 of which were Satin and the other 2 were Twill. Of the 9 Satin pieces, 8 pieces were 5-end satin which had the ground of 5-end warp satin with the figure of 5-end weft satin. The remaining 1 Satin piece were more splendid with prominent figures by using warp and weft of different colors. The 2 Twill pieces used twill weave-the ground was 3-end warp twill and the figures were 5-end weft twill. Both of the Twill pieces were weaved with character patterns, partly using wrapped gold thread as supplementary weft. The patterns of 11 pieces of silk fabric include flower, dragon/phoenix, cloud, and geometric patterns. Five were flower patterns, three were dragon/phoenix patterns, two were geometric pattern, and one was cloud pattern. In addition, various treasure patterns, character patterns were utilized as supplementary patterns. The flower and phoenix patterns reflect characteristics of the textiles of the 17th century whereas check pattern and cloud pattern were very unique.

• Composites Research
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• 제16권4호
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• pp.29-35
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• 2003

본 논문에서는 직물 복합재료의 제조된 드레이핑 헬맷의 등가 토우 두께, 종방향 토우의 진폭, 토우 간격 등의 여러 가지 토우 파라메터들을 관찰하고, 현미경 관찰을 통해 직물 복합재료 구조의 각 방향에 따른 미세 변형을 서로 비교하였다. 또한 이러한 관찰 결과들을 동일한 토우 구조를 가지는 견직물 시편을 이용한 일방향 편향 인장실험, 이축 인장실험 결과와 비교하였으며, 오토클레이브에서 경화된 여러 가지 선형 조건을 가진 시편들과도 비교하였다. 직물 복합재료(새틴 직물 복합재료)로 제작된 드레이핑 힐멧으로부터 현미경 관찰 시편을 얻었으며, 각 시편의 종방향과 횡방향에 대해 각각 관찰하였다 관찰 결과로 부터, 토우 방향에 따른 서로 다른 변형 패턴을 확인할 수 있었으며 드레이핑 공정 중 금형의 기하학적 조건이 직물 복합재료의 변형에 미치는 영향을 확인하였다.

• 한국의상디자인학회지
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• 제13권4호
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• pp.167-177
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• 2011

As today the world has been globalized, each country and race has been trying its best to preserve and develop its own unique culture to have its identity. Same exertion has been added in the areas of fashion and textile such as developing traditional textile or fabrics and applying them to the materials of modem fashion. The Korean traditional gold foil is one of invaluable cultural heritages, and another means to elevate the wearer's social status, and its beauty and artistic quality is very excellent. So, in order to preserve and develop of the Korean traditional gold foil, the exertion of developing the gold foil into multi-purpose modem fashion material which is endurable and practical by using the image of Korean traditional gold foil should be done. The purposes of this study are to preserve Korean traditional gold foil, to develop Korean textile and fashion industry by utilizing Korean traditional gold foil images in modem fashion. The results are as follows: textile designs applied plant motives of Korean traditional gold foil were carried out, modem fashion materials of Korean traditional gold foil image were developed by Jacquard weave. They were to certify that those were registered on the register of the Korean of design registrations from commissioner the Korean Intellectual Property Office, and developed fabrics of Korean gold foil image were examined the utility for modern fashion materials through using them in the modem wearing, interior goods and fashion items.

• 한국항공우주학회지
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• 제33권11호
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• pp.24-32
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• 2005

본 연구의 목표는 X-band에서 하중지지가 가능한 전자파 흡수 구조(RAS)를 제작하는 것이다. 본 연구에서는 하중을 지지할 수 있도록 비강성비강도가 우수한 유리섬유/에폭시 평직 복합재료에 손실을 일으킬 수 있는 MWNT를 첨가한 재료를 제작하였으며, 미세구조의 관찰과 유전율 측정을 통해 흡수 재료로의 적합성을 확인하였다. 유전자 알고리즘과 다층형 RAS의 전자파 반사/투과 이론을 적용하여 그 복합재료로 이루어진 RAS에 대한 최적설계를 수행하였다. RAS의 제작을 통해 복합재료의 층당 두께가 층수와 MWNT의 함량에 따라 변함을 확인하였다. 이를 고려한 제작 공정을 제안하고 적용하여 설계된 RAS를 제작하였고, 그것의 반사손실의 예측치와 실험치가 잘 일치함을 확인하였다.

• 복식
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• 제53권4호
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• pp.113-129
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• 2003

This study examined textiles used for the ancient costumes that are excavated from tombs of the Chosun dynasty, focusing especially on Po(overcoat). The result of the study is that silk occupies 79.8% of all the textiles used for Po, and cotton and linen follow. The weaving method of silk was primarily plain and satin weaves. However the use of twill, gauze, and double weave, that had led weaving methods of silk during the Koryo dynasty, are considerably decreased in Chosun dynasty. Danlyeong(단령) and Cheollik(첩리) had been made of various textile fabrics like cotton, linen, silk and blended fabric before Imjinwaeran(임진왜란). After the war, they were simplified in gauze weaved silk or satin weaved silk, And also patterned fabric were widely used for them than other Po. Simple fabrics like cotton, linen and plain weaved silk had been used for Aekjureum(액주름) and Jiklyeong(직령) before Imjinwaeran. After the war, Jiklyeong was used as underwears of Danlyeong, so it was made of high quality patterned silk. Dopo(도포) and Changuiryu(창의류) were mainly excavated from tombs after the war, high quality plain weaved silk are used than gorgeous Patterned silk. For the Dopho(답호) and Bansuui(반수의), before the war, they were made with various textiles such as plain weaved silk, twill weaved silk, satin weaved silk, cotton, linen, and blended fabric. But after the war plain weave was mainly used. In Jangui(장의), since it was mostly for women, many kinds of women's patterned silk were used in than any other Po. There were only a few excavation of Simui(심의) and most of them were made of ramie and were hemmed in black satin without pattern.

• 복식
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• 제63권7호
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• pp.79-93
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• 2013

In the Korean literature, records of systematic gold thread manufacturing such as gold foil(金 箔匠), gold foil bonded with fabrics(付金匠), gold foil bonded with paper materials(金箋紙匠), refining gold(鍊金匠), cutting gold(裁金匠), and making gold thread(絲金匠) can be easily found. We can infer from these literatures that the Korean people used to make gold threads. However, is not existent the gold thread making technique. Thus, a research was done using 67 pieces of gold thread artifacts used in textiles craft of Korea, China and Japan. The purpose of this research was to identify the characteristics of the Korean gold thread by studying the artifacts' form classification, gold foil, glue and the base. First, gold thread is divided into flat gold thread and wrapped gold thread. Wrapped gold thread was made in more various methods such as with a paper on the flat gold thread, metal thread and wrapped gold thread with gold foil on top. Compared to the flat gold thread, wrapped gold thread uses a thread that has a thinner and wider. Through this analysis, even making of the base of the gold threads was different according to the type. Secondly, we looked into the characteristics of materials according to form structure of the gold thread. After analysis of experiment results, we could know that to attach Korean gold thread, glue and the mixture of materials such as Red soil(朱土) was also added. The kinds of the base of gold threads were identified as paper, leather and intestines. Among those materials, for paper, Korea's Dakji, China's Sangpiji(桑皮紙) and Jukji(竹紙) and Japan's Anpiji(雁皮紙) seemed to have all been used, so because of the difference among countries, we can prove that Korea has also produced gold thread. By looking at the research, the base of gold threads and making features hugely vary according to the area.

• 복식
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• 제58권1호
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• pp.9-16
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• 2008

Six of the Imdang tombs containing remains with imprints of ancient fabrics and textiles were investigated. Within the tombs, a total of 120 pieces of imprinted fabrics and textiles were investigated, all of which belongs to $5{\sim}6C$ Shilla period. All of the hemp textiles examined exhibited similar characteristics found in ancient hemp textiles: they were woven by plain weave technique with s-twist threads. The examined silk could be categorized into plain woven silk, cho, and double woven brocade, all of them made with non-twisted threads and degummed silk. The density of the plain woven silk ranged from 39 threads to 144 threads. Cho was also found, which showed similar characteristics to those of Gaya and Bakjae tombs. One piece of 2/1 twill weave on plain ground and 12 pieces of double woven brocade were found and their average density was $97.4{\times}33.4/cm$ with denser warp than weft. The various thickness of the threads were observed in the examined plain braid. The silk with twining technique showed thicker warp than weft. This is similar to the techniques of fabrics found in the King Muryeoung's Tomb of the Bakjae period. Fabrics with the purple-like color were observed in the some of the double woven brocades and also on the plain woven silk imprinted on the remains. The purple-like color was revealed to be purple with a tint of violet. The two tombs from which the imprinted fabrics with purple-like color were found belonged to top-class social level of the Shilla period, which informs that the purple color was used exclusively for the people of higher social status. The floss silk was found between the double woven brocade and plain woven silk of the belt, which is an important evidence that the floss silk was used for stuffing in the early 6th century.