간행물

한국전기전자재료학회> 전기전자재료학회논문지(J. Korean Inst. Electr. Electron. Mater. Eng.)

전기전자재료학회논문지(J. Korean Inst. Electr. Electron. Mater. Eng.) update

Journal of the Korean Institute of Electrical and Electronic Material Engineers

  • : 한국전기전자재료학회
  • : 공학분야  >  전기공학
  • : KCI등재
  • :
  • : 연속간행물
  • : 격월
  • : 1226-7945
  • : 2288-3258
  • : 전기전자재료학회지(~1997)→전기전자재료학회논문지

수록정보
수록범위 : 1권1호(1988)~32권1호(2019) |수록논문 수 : 4,342
전기전자재료학회논문지(J. Korean Inst. Electr. Electron. Mater. Eng.)
32권1호(2019년 01월) 수록논문
최근 권호 논문
| | | |

KCI등재

1호남고속철도 전차선로의 이상 상태 분석

저자 : 전재근 ( Jaegeun Jun ) , 신승권 ( Seungkwon Shin ) , 정호성 ( Hosung Jung ) , 나경민 ( Kyungmin Na ) , 박영 ( Young Park )

발행기관 : 한국전기전자재료학회 간행물 : 전기전자재료학회논문지(J. Korean Inst. Electr. Electron. Mater. Eng.) 32권 1호 발행 연도 : 2019 페이지 : pp. 1-5 (5 pages)

다운로드

(기관인증 필요)

초록보기

The overhead contact line (OCL) is a key piece of equipment for transmitting electrical energy to the pantograph of rail cars. Recently, a 400 km/h OCL was applied to the Honam high-speed line, and its performance was examined by running HEMU-430X. For the study, we analyzed the current of catenary wire concurrently while running HEMU-430X in the Honam high-speed line. Specifically, this study recorded the currents for each speed during operation of the railway vehicle. The analysis of the frequency of line current showed generation of third-harmonics, 15th-harmonics, 17th-harmonics, and 19th-harmonics. The current of catenary wire is a basic technology assessment used to determine the electrical safety of electric railway systems, and it can be used as a technology for analyzing circulating currents generated in the current configuration, as well as for analyzing electric fatigue of the OCL components.

KCI등재

2고온 시효 시험에 따른 Epoxy 솔더 접합부의 접합 특성 평가

저자 : 강민수 ( Min-soo Kang ) , 김도석 ( Do-seok Kim ) , 신영의 ( Young-eui Shin )

발행기관 : 한국전기전자재료학회 간행물 : 전기전자재료학회논문지(J. Korean Inst. Electr. Electron. Mater. Eng.) 32권 1호 발행 연도 : 2019 페이지 : pp. 6-12 (7 pages)

다운로드

(기관인증 필요)

초록보기

Bonding properties of epoxy-containing solder joints were investigated by a high temperature aging test. Specimens were prepared by bonding an R3216 standard chip resistor to an OSP-finished PCB by a reflow process with two basic types of solder (SAC305 & Sn58Bi) pastes and two epoxy-solder (SAC305+epoxy & Sn58Bi+epoxy) pastes. In all epoxy solder joints, an epoxy fillet was formed in the hardened epoxy, lying around the outer edge of the solder joint, between the chip and the Cu pad. In order to analyze the bonding characteristics of solder joints at high temperatures, a high-temperature aging test at 150°C was carried out for 14 days (336 h). After aging, the intermetallic compound Cu6Sn5 was found to have formed in the solder joint on the Cu pad, and the shear stress on the conventional solder joint was reduced by a significant amount. The reason that the shear force did not decrease much, even though in epoxy solder, was thatbecause epoxy hardened at the outer edge of the supported solder joints. Using epoxy solder, strong bonding behavior can be ensured due to this resistance to shear force,even in metallurgical changes such as those where intermetallic compounds form at solder joints.

KCI등재

3직교 입력 백터를 이용하는 수정된 RLS 알고리즘에 관한 연구

저자 : 안봉만 ( Bong Man Aim ) , 김관웅 ( Kwang Woong Kim ) , 안현규 ( Hyun Gyu Ahn ) , 한병성 ( Byoung Sung Han )

발행기관 : 한국전기전자재료학회 간행물 : 전기전자재료학회논문지(J. Korean Inst. Electr. Electron. Mater. Eng.) 32권 1호 발행 연도 : 2019 페이지 : pp. 13-19 (7 pages)

다운로드

(기관인증 필요)

초록보기

This paper proposes an easy algorithm for finding tapped-delay-line (TDL) filter coefficients in an adaptive filter algorithm using orthogonal input signals. The proposed algorithm can be used to obtain the coefficients and errors of a TDL filter without using an inverse orthogonalization process for the orthogonal input signals. The form of the proposed algorithm in this paper has the advantages of being easy to use and similar to the familiar recursive least-squares (RLS) algorithm. In order to evaluate the proposed algorithm, system identification simulation of the 11th-order finite-impulse-response (FIR) filter was performed. It is shown that the convergence characteristics of the learning curve and the tracking ability of the coefficient vectors are similar to those of the conventional RLS analysis. Also, the derived equations and computer simulation results ensure that the proposed algorithm can be used in a similar manner to the Levinson-Durbin algorithm.

다운로드

(기관인증 필요)

초록보기

Ferroelectric material properties are strongly governed by domain structures and their evolution processes, but the evolution processes of complex domain patterns during a macroscopic electrical poling process are still elusive. In the present work, domain-evolution processes in a PZT ceramic near the morphotropic phase-boundary composition were studied during a step-wise electrical poling using piezoresponse force microscopy (PFM). Electron backscatter diffraction was used with the PFM data to identify the grain boundaries in the region of interest. In response to an externally the applied electric field, growth and retreat of non-180° domain boundaries wasere observed. The results indicate that ferroelectric polarization-switching nucleates and evolves in concordance with the pattern of the pre-existing domains.

KCI등재

5연자성 금속 분말의 분산에 분산제와 실란이 미치는 영향

저자 : 이창현 ( Chang Hyun Lee ) , 신효순 ( Hyo Soon Shin ) , 여동훈 ( Dong Hun Yeo ) , 남산 ( Sahn Nahm )

발행기관 : 한국전기전자재료학회 간행물 : 전기전자재료학회논문지(J. Korean Inst. Electr. Electron. Mater. Eng.) 32권 1호 발행 연도 : 2019 페이지 : pp. 25-29 (5 pages)

다운로드

(기관인증 필요)

초록보기

Various process technologies for manufacturing power inductors are under development. The core goal is to increase the mixing ratio of the soft magnetic powder in the epoxy, and to uniformly disperse it in a molding-type power inductor, manufactured by the injection molding method. In this study, we investigated the effect of dispersant and silane on the dispersion of soft magnetic metal powders in epoxy. We added 0.6 wt% of dispersant and 2.0 wt% of silane, and an excellent dispersibility resulted. Under the conditions of 0.3 wt% of dispersant and 0.5 wt% of silane, we added both dispersant and silane together to observe the effect of their interaction on dispersibility. Similarly, the addition of 0.3 wt% of dispersant and 0.1 wt% of silane resulted in a sharp increase in viscosity, considered to be due to the interaction of the dispersant and silane. The addition of 0.1 wt% of dispersant with 0.5 wt% of silane resulted in a sharp rise in viscosity, and sedimentation-height decreased sharply due to the dispersion optimization.

KCI등재

6T형상 압전 엑추에이터의 설계 및 구동특성 연구

저자 : 김태훈 ( Tae-hoon Kim ) , 박민호 ( Min-ho Park ) , 정성수 ( Seong-su Jeong ) , 전호익 ( Ho-ik Jun ) , 천성규 ( Seong-kyu Cheon ) , 박태곤 ( Tae-gone Park )

발행기관 : 한국전기전자재료학회 간행물 : 전기전자재료학회논문지(J. Korean Inst. Electr. Electron. Mater. Eng.) 32권 1호 발행 연도 : 2019 페이지 : pp. 30-34 (5 pages)

다운로드

(기관인증 필요)

초록보기

A newly proposed T-shape piezoelectric actuator, composed of piezoelectric benders, was designed and studied. This actuator has four legs, and can walk in both forward and backward directions. The piezoelectric actuator has a simple structure and can be easily fabricated. It consists of a piezoelectric bender and a joint. The piezoelectric bender is composed of carbon and ceramic materials. Therefore, there is an advantage in that it can be fabricated on a very small scale. Elliptical displacements of the piezoelectric actuators were analyzed by finite element analysis. Elliptical motion at the tip occurred at two voltages having a 90-degree phase difference. Based on the finite element analysis results, prototype actuators with maximum displacements were fabricated, and the characteristics of their movements were characterized.

KCI등재

7무연 0.74(Bi0.5Na0.5)TiO3-0.26SrTiO3 압전 세라믹스의 하소온도 변화에 따른 전기적 특성 변화

저자 : 김성현 ( Seong-hyun Kim ) , 이상훈 ( Sang-hun Lee ) , 한형수 ( Hyoung-su Han ) , 이재신 ( Jae-shin Lee )

발행기관 : 한국전기전자재료학회 간행물 : 전기전자재료학회논문지(J. Korean Inst. Electr. Electron. Mater. Eng.) 32권 1호 발행 연도 : 2019 페이지 : pp. 35-39 (5 pages)

다운로드

(기관인증 필요)

초록보기

In this study, we investigated the optimum calcination temperature of lead-free 0.74(Bi0.5Na0.5)TiO3-0.26SrTiO3 (BNST) piezoelectric ceramics by analyzing the crystal structure, dielectric properties, and electric field-induced strain behavior. BNST ceramics prepared by conventional solid-state reaction methods at various calcination temperatures according to the industrial standard. All samples of BNST ceramics were subsequently sintered at 1,175℃ for 2 h. Crystal structure classification of the ceramics showed a single perovskite phase, with no second phase detectable for the samples calcined at 750℃ or higher. BNST samples calcined at 850℃ exhibited the most optimal values for itsand the common physical parameters of density = 5.518 g/㎤, ε = 1,871.837, tanδ = 0.047, and d33* = 874 pm/V.

KCI등재

8교류구동방식에 의한 형광 OLED의 주파수 응답 특성

저자 : 서정현 ( Jung-hyun Seo ) , 주성후 ( Sung-hoo Ju )

발행기관 : 한국전기전자재료학회 간행물 : 전기전자재료학회논문지(J. Korean Inst. Electr. Electron. Mater. Eng.) 32권 1호 발행 연도 : 2019 페이지 : pp. 40-46 (7 pages)

다운로드

(기관인증 필요)

초록보기

To study the frequency response characteristics of alternating-current-driven organic light-emitting diodes (OLEDs), we fabricated blue-fluorescent OLEDs and analyzed their electroluminescent characteristics according to the alternating current voltage and frequency. The luminance-frequency characteristics of alternating-current-driven OLED was similar to that of a low-pass filter,and the luminance of high-voltage OLED decreased at higher frequency than low-voltage OLED. The luminance characteristics of the OLED according to the frequency is due to the capacitive reactance in the OLED, generated during the alternating current driving. The frequency response characteristics of the OLED according to the voltage is due to the decrease in internal resistance of the organic layer. In addition, the negative voltage component of the alternating current did not affect the frequency response of the OLED. Therefore, the electroluminescent characteristics of OLED with an alternating current power of 60 Hz are not influenced by the frequency.

KCI등재

9청색 마이크로 LED의 광 추출 효율에 미치는 칩 크기 의존성 연구

저자 : 박현정 ( Hyun Jung Park ) , 차유정 ( Yu-jung Cha ) , 곽준섭 ( Joon Seop Kwak )

발행기관 : 한국전기전자재료학회 간행물 : 전기전자재료학회논문지(J. Korean Inst. Electr. Electron. Mater. Eng.) 32권 1호 발행 연도 : 2019 페이지 : pp. 47-52 (6 pages)

다운로드

(기관인증 필요)

초록보기

Micro-LEDs show lower efficiencies compared to general LEDs having large areas. Simulations were carried out using ray-tracing software to investigate the change in light extraction efficiency and light distribution according to chip-size of blue flip-chip micro-LEDs (FC μ-LEDs). After fixing the height of the square FC μ-LED chip at 158 μm, the length of one side was varied, with dimensions of 2, 5, 10, 30, 50, 100, 300, and 500 μm. The highest light-extraction efficiency was obtained at 10 μm, beyond which the efficiency decreased as the chip-size increased. The chip size-dependence of the FC μ-LEDs both without the patterned sapphire substrate, as well as vertical FC μ-LEDs, were analyzed.

KCI등재

10TTIF이 첨가된 저온소성용 TiO2 Paste를 이용한 DSSC의 효율 특성

저자 : 권성열 ( Sung Yeol Kwon ) , 심창수 ( Chang Soo Sim ) , 양욱 ( Wook Yang )

발행기관 : 한국전기전자재료학회 간행물 : 전기전자재료학회논문지(J. Korean Inst. Electr. Electron. Mater. Eng.) 32권 1호 발행 연도 : 2019 페이지 : pp. 53-57 (5 pages)

다운로드

(기관인증 필요)

초록보기

Recently, the application field of solar panels is increasing. Accordingly, the demand for flexible devices is also steadily increasing. It is therefore necessary to develop TiO2 paste for low-temperature annealing for flexible DSSC fabrication. In this study, the TiO2 paste for low-temperature annealing with varying molar ratio of titanium isopropoxide (TTIP) was prepared, and DSSC was fabricated and its characteristics were compared. As a result, there was no deformation of the particles on the surface in the SEM data. However, the highest open circuit voltage, short circuit current, and fill factor were measured in the DSSC unit cell prepared by adding 0.5 mol of TTIP to the TiO2 paste, and the highest efficiency was 4.148%.

12
권호별 보기
가장 많이 인용된 논문

(자료제공: 네이버학술정보)

가장 많이 인용된 논문
| | | |
1연안해역에서 석유오염물질의 세균학적 분해에 관한 연구

(2006)홍길동 외 1명심리학41회 피인용

다운로드

2미국의 비트코인 규제

(2006)홍길동심리학41회 피인용

다운로드

가장 많이 참고한 논문

(자료제공: 네이버학술정보)

가장 많이 참고한 논문

다운로드

2미국의 비트코인 규제

(2006)홍길동41회 피인용

다운로드

해당 간행물 관심 구독기관

선문대학교 부산대학교 한국산업기술대학교 금오공과대학교 지방보훈병원
 42
 22
 20
 20
 16
  • 1 선문대학교 (42건)
  • 2 부산대학교 (22건)
  • 3 한국산업기술대학교 (20건)
  • 4 금오공과대학교 (20건)
  • 5 지방보훈병원 (16건)
  • 6 인하대학교 (16건)
  • 7 고려대학교 (16건)
  • 8 충남대학교 (14건)
  • 9 연세대학교 (12건)
  • 10 단국대학교 (11건)

내가 찾은 최근 검색어

최근 열람 자료

맞춤 논문

보관함

내 보관함
공유한 보관함

1:1문의

닫기