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Journal of Korean Institute of Fire Science and Engineering 2008;22(5):43-47.
Published online December 31, 2008.
이차이온질량분석기의 깊이 분포도를 이용한 동선의 열적 확산에 대한 연구
박종진, 홍태은, 조영진, 서영일, 문병선, 박종찬, 박혁규, 이정식
1국립과학수사연구소2한국기초과학지원연구원3국립과학수사연구소4국립과학수사연구소5국립과학수사연구소6국립과학수사연구소7부산대학교 물리학과8경성대학교 물리학과
Study of Thermal Diffusion in the Copper Wire Using SIMS Depth Profiling
Park Jong-Jin, Hong Tae-Eun, Cho Young-Jin, Seo Young-Il, Moon Byung-Sun, Park Jong-Chan, Pak Hyuk-Kyu, Lee Jeong-Sik
요약
최근에 이차이온질량분석기(Secondary Ion Mass Spectrometry)를 이용한 1 2차 용융흔 구별에 관한 연구가 많은 관심을 끌고 있다. 동선의 깊이 분포에 따른 $^{12}C^-$, $^{63}Cu^-$, $^{18}O^-$, $^{35}Cl^-$ 이차 이온을 검출하기 위해 Cs+ 일차 이온빔을 사용하였고, 본 논문에서는 과전류에 의한 동선의 열적 확산에 대해 분석하였다. 분석결과 PVC 절연피복이 덮인 동선이 보다 더 깊이 탄소와 염소가 확산함을 보였으나, 산소는 절연피복이 덮이지 않은 동선이 더 깊이 확산된 것을 보였다.
Abstract
Recently SIMS has attracted interest as new technique to distinguish the primary and the secondary arc beads. A Cs+ primary ion beam was used to detect the $^{12}C^-$, $^{63}Cu^-$, $^{18}O^-$, $^{35}Cl^-$ secondary ions which are formed during depth profiles in the copper wires. In this work, we studied thermal diffusion in the copper wire which are occurred with supplying over-current. The results demonstrated that Carbon and Chloride are diffused in PVC-coated copper wire deeper than none PVC-coated. However Oxygen showed the reverse diffusion property.
Key Words: SIMS, Copper wire, Diffusion
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