http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
합천 옥전고분군 출토 금속유물의 과학적 보존복원- 철제단갑, 철제마주를 중심으로
이우희,김수기,유재은,Lee, U-Hui,Kim, Su-Gi,Yu, Jae-Eun 국립문화재연구소 1987 保存科學硏究 Vol.8 No.-
A large number of metallic relics were excavated by a team of Kyungsang University museum (Nov. 25, 1985 - Jan. 29, 1986) from the groups of tombs located at No. 9 Mountain,Okchun Village, Sungsan-Ri, Ssangchak-Myon, Hyopchun-Kun, Kyungsangnam-Do which are believed to date back to Kaya period. The Research Institute of Cultural Properties was in charge performing scientific conservation and restoration for the iron cuirass and horse halmet (for one year and seven months, Feb. '86 - Sep. '87)The scientific processing for them are as follows :1. Taken Photo and record the actual conditions prior to conservation.2. Taken radiography3. Elimate Goethite ($\alpha$-FeOOH) layer on the surface using Air-brasive, remaining Magnetite ($Fe_3O_4$) layer.4. Treat to dechlorinize with 3% Sodium-Sesquicarbonate5. Protected the relics with Ruscoat acryl resin using vacuum infiltration method.6. Joint the sherd using Araldite and Microballoon mixture.7. Restored missing parts by Araldite SV 427 and HV 4278. Made record and taken photo after restoration Several hundred of sherds of relics, small or large, were restored by assortment which this method for the purpose of contributing to the further study of ancient Kaya history.* Conservator, National Research Institute of Cultural Properties.
김명수 ( Myung Soo Kim ),공경일 ( Kyung Il Kong ),김나리 ( Na Ri Kim ),박형욱 ( Hyung Wook Park ),박운영 ( Oun Young Park ),박영빈 ( Young Bin Park ),정무영 ( Moo Young Jung ),이상환 ( Sang Hwan Lee ),김수기 ( Su Gi Kim ) 한국복합재료학회 2013 Composites research Vol.26 No.1
불연속 탄소섬유-에폭시 복합재의 저항발열 특성에 관한 연구를 수행하였다. 1, 3, 5 wt.% 불연속 탄소섬유가 함유된 복합재 시험편을 초음파 처리와 캐스트 몰딩(cast molding)을 이용하여 제조하였다. 시편에 DC 전류 인가시 발생되는 저항열에 의한 시편의 표면온도 변화를 적외선 카메라를 이용하여 측정하였다. 발열온도를 예측하기 위해서 유한요소해석을 수행하였는데, 실측된 온도와 부합함을 확인하였다. 탄소섬유의 함량과 인가전압이 증가할수록 발열저항에 의해서 발생된 열은 증가함을 확인하였다. 복합재 내에서 균일한 온도분포를 얻기 위해서는 탄소섬유의 분산상태가 중요하며, 대기온과 습도 등 실험환경이 발열온도에 영향을 미치는 것으로 나타났다. This study explores the resistive heating characteristics of discontinuous carbon fiber (CF)-epoxy composites. Test samples including 1, 3, and 5% CF were fabricated using sonication and cast molding processes. For heating performance characterization, DC currents were applied to the composite samples, and surface temperatures were evaluated visually and quantitatively using an infrared camera. To estimate the thermal performance of composites and verify the experimental results, finite element analyses were performed. The resistive heating mechanism was investigated in connection with CF loading and applied voltages. Resistive heating efficiency increased proportionately with CF concentration and applied voltage. To obtain homogeneous temperature distribution of the samples, high degree of CF dispersion is required.