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The effects of carbon coating onto graphite filler on the structure and properties of carbon foams
Ji-Hyun Kim, Do Young Kim, Young-Seak Lee 한국탄소학회 Carbon Letters 5 Pages
한국탄소학회 Carbon Letters 2017, Vol.21 16 111-115 (5 pages)
Carbon foams (CFms) are of crucial importance in electrical and mechanical devices due to their high thermal conductivity used for eliminating high heat flow and maintaining low temperatures [1]. The most common CFms are types of aluminum alloys, copper and diamond. However, the mechanical properties of metal-based heat sink materials are difficult to control at temperatures over 550°C [2,3]. Thus, CFms are actively investigated as heat sink materials because of their good properties, such as... -
Double-walled carbon nanotubes: synthesis, structural characterization, and application
Yoong Ahm Kim, Kap-Seung Yang, Hiroyuki Muramatsu, Takuya Hayashi, Morinobu Endo, Mauricio Terrones, Mildred S. Dresselhaus 한국탄소학회 Carbon Letters 12 Pages
한국탄소학회 Carbon Letters 2014, Vol.15 No.2 4 77-88 (12 pages)
Double walled carbon nanotubes (DWCNTs) are considered an ideal model for studying the coupling interactions between different concentric shells in multi-walled CNTs. Due to their intrinsic coaxial structures they are mechanically, thermally, and structurally more stable than single walled CNTs. Geometrically, owing to the buffer-like function of the outer tubes in DWCNTs, the inner tubes exhibit exciting transport and optical properties that lend them promise in the fabrication of field-effect... -
Study on lowering the percolation threshold of carbon nanotube-filled conductive polypropylene composites
Seung Bin Park, Moo Sung Lee, Min Park 한국탄소학회 Carbon Letters 8 Pages
한국탄소학회 Carbon Letters 2014, Vol.15 No.2 8 117-124 (8 pages)
to decrease the conductive- filler percolation-threshold as much as possible. In this study, we investigated the effect of polymer/conductive-filler interactions, as well as the processing and morphological development of low-percolation-threshold (Φc) conductive-polymer composites. The aim of the study was to produce conductive composites containing less multi-walled CNTs (MWCNTs) than required for pure polypropylene (PP) through two approaches: one using various mixing methods and the other... -
Preparation and characterization of carbon fiber-reinforced thermosetting composites: a review
Fan-Long Jin, Soo-Jin Park 한국탄소학회 Carbon Letters 11 Pages
한국탄소학회 Carbon Letters 2015, Vol.16 No.2 1 67-77 (11 pages)
Carbon fibers (CFs) have a unique combination of properties which allow them to be widely used as reinforcing materials in advanced polymer composites. The mechanical properties of CF-reinforced polymer composites are governed mainly by the quality of interfacial adhesion between the CFs and the polymer matrix. Surface treatments of CFs are generally carried out to introduce chemical functional groups on the fiber surfaces, which provide the ability to control the surface characteristics of CFs.... -
Oxidative Stabilization Behaviors of Petroleum-based Isotropic Litch fiber Spun by Melt-blown Method
Chan Kim, Su-Hyun Lee, Young-Min Kim, Kap-Seoung Yang 한국탄소학회 Carbon Letters 6 Pages
한국탄소학회 Carbon Letters Vol.2 No.3&4 3 170-175 (6 pages)
탄소섬유나 활성탄소섬유의 물성과 탄화 수율은 피치의 화학적 구조, 방사방법, 산화안정화, 탄소화, 활성화 등의 각 조건에 의해서 크게 영향을 받는다. 산화안전화 공정은 열가소성 피치를 열경화성 피치로 변환시켜 후속하는 고온 탄소화,활성화 공정에서 섬유의 융착 및 열용융을 방지하기 위해 섬유를 표면으로부터 산화처리하는 과정이ㅏ[1-4]. 산화안정화 공저을 행하지 않고직접 탄소화나 진행되어 탄화되기보다는 연소된다[2]. -
이방성 전도 접착제 물성과 유기 기판 플립 칩의 신뢰성에 미치는 비전도성 충진재의 영향
임명진, 백경욱, Im. Myeong-Jin, Baek. Gyeong-Uk 한국재료학회 한국재료학회지 7 Pages
한국재료학회 한국재료학회지 2000, Vol.10 No.3 184-190 (7 pages)
비전도성 충진재를 포함한 개선된 이방성 전도 접착제의 열적/기계적 특성과 이를 이용한 유기 기판용 플립 칩의 신뢰성에 미치는 충진재 양의 영향을 고찰하였다. 비전도성 충진재 양이 다른 개선된 이방성 접착제의 특성을 살펴보기 위해 differential scanning calorimeter (DSC), thermo-gravimetric analyzer (TGA), dynamic mechanical analyzer (DMA), thermo-mechanical analyzer (TMA)을 사용하였다. 비전도성 충진재의 양이 증가함에 따라 열팽창계수는 감소하였고, 상온에서의 storage modulus는 증가하였다. 추가로, 충진재의...
