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논문 기본 정보
- 자료유형
- 학위논문
- 저자정보
- 지도교수
- 손인준
- 발행연도
- 2016
- 저작권
- 경북대학교 논문은 저작권에 의해 보호받습니다.
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In this study, polarization behavior and characteristic of palladium-nickel films using ethylenediamine bath was investigated by using inductively coupled plasma atomic emission spectroscopy (ICP), micro vikers hardness tester, X-ray photoelectron spectroscopy, X-ray diffraction. and contact resistance. The following are results.
1) The stability constant of palladium for the ethylenediamine is logβ = 26.9 on the other hand the stability constant of nickel is lower than palladium. Therefore the reduction potential of palladium was shifted to base potential direction more than the reduction potential of nickel.
2) The hardness is increased with increasing nickel content. This result is considered by solid solution strengthening and grain refinement by increasing overpotential.
3) Contact resistance of gold alloy films was increased by the thermal aging. During the thermal aging, Ni was diffused from nickel underlayer toward to surface and reacted with oxygen in air, which is resulted in formation of oxide such as NiO and Ni2O3.
4) Morphology of the films is a bright appearance, uniform, no-pore and no crack.
5) Palladium-nickel alloy plating using ethylenediamine bath showed similar characteristic as using the ammonia bath.
1) The stability constant of palladium for the ethylenediamine is logβ = 26.9 on the other hand the stability constant of nickel is lower than palladium. Therefore the reduction potential of palladium was shifted to base potential direction more than the reduction potential of nickel.
2) The hardness is increased with increasing nickel content. This result is considered by solid solution strengthening and grain refinement by increasing overpotential.
3) Contact resistance of gold alloy films was increased by the thermal aging. During the thermal aging, Ni was diffused from nickel underlayer toward to surface and reacted with oxygen in air, which is resulted in formation of oxide such as NiO and Ni2O3.
4) Morphology of the films is a bright appearance, uniform, no-pore and no crack.
5) Palladium-nickel alloy plating using ethylenediamine bath showed similar characteristic as using the ammonia bath.
목차
Ⅰ. 서론 11.1 연구배경 11.2 Pd-Ni 합금도금에 관한 종래의 연구 5Ⅱ. 이론적 고찰 72.1 합금도금 형성 72.2 분극 및 분극곡선 측정 112.3 접촉저항 측정 13Ⅲ. 실험방법 153.1 도금액 제작 153.2 부분분극곡선 측정용 시편제작 173.3 물리적 특성 분석용 시편제작 183.4 XPS를 이용한 표면분석 223.5 도금두께 측정 22Ⅳ. 실험결과 및 고찰 234.1 팔라듐-니켈합금의 석출거동 234.2 팔라듐-니켈합금의 결정구조해석 284.3 Thermal aging에 따른 팔라듐-니켈 합금도금층의 접촉저항 변화 314.4 XPS 표면분석 334.5 팔라듐-니켈 합금도금의 접촉저항에 미치는 금 합금도금층의 영향 374.6 팔라듐-니켈 합금도금의 경도에 미치는 도금층 내 니켈함량의 영향 394.7 팔라듐-니켈 합금도금의 표면 및 단면 조직사진 42Ⅴ. 결론 45참고문헌 47영문초록 49
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