The Study of Phase Diagram, Diffusion Path and Diffusivities in Au-Al-Cu and Au-Al-Pd Systems Using Diffusion Couple Method
博士 === 國立中山大學 === 材料與光電科學學系研究所 === 102 === Diffusion couples and equilibrated alloys were used to construct the isothermal phase diagrams of Au-Al-Cu and Au-Al-Pd at 500 °C. Electron microprobe analyses were performed to determine the phase compositions and phase relationships. Two ternary phases (ε...
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ndltd-TW-102NSYS51590322019-05-15T21:32:37Z http://ndltd.ncl.edu.tw/handle/r36w4b The Study of Phase Diagram, Diffusion Path and Diffusivities in Au-Al-Cu and Au-Al-Pd Systems Using Diffusion Couple Method 應用擴散偶量測Au-Al-Cu及Au-Al-Pd相圖、擴散路徑與擴散係數 Jyun-lin Li 李俊霖 博士 國立中山大學 材料與光電科學學系研究所 102 Diffusion couples and equilibrated alloys were used to construct the isothermal phase diagrams of Au-Al-Cu and Au-Al-Pd at 500 °C. Electron microprobe analyses were performed to determine the phase compositions and phase relationships. Two ternary phases (ε and β)and 10 three-phase equilibria were determined in Au-Al-Cu system. The δ(Au2Al) phase exhibited a wide range of solubility and a peculiar morphology. The average interdiffusion coefficients of δ(Au2Al) phase obtained at 500 °C are: =(-1.47±0.10) ×10-8 cm2/sec =(-1.46±0.09) ×10-8 cm2/sec =(1.47±0.09) ×10-8 cm2/sec =(1.46±0.08) ×10-8 cm2/sec Two ternary phases (T1 and T2) and 13 three-phase equilibria were identified in Au-Al-Pd system. Phase T1 contained 37 at% Au, 26 at% Pd, and 37 at% Al. Phase T2 contained 44 at% Au, 24 at% Pd, and 32 at% Al. The average interdiffusion coefficients of Au2Al phase obtained at 500 °C are: =(-2.75±0.04) ×10-10 cm2/sec =(-5.02±0.04) ×10-10 cm2/sec =(2.33±0.03) ×10-10 cm2/sec =(4.74±0.03) ×10-10 cm2/sec The solubility ranges of the binary intermetallic phases were also determined in this study. Ker-Chang Hsieh 謝克昌 2014 學位論文 ; thesis 158 zh-TW |
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博士 === 國立中山大學 === 材料與光電科學學系研究所 === 102 === Diffusion couples and equilibrated alloys were used to construct the isothermal phase diagrams of Au-Al-Cu and Au-Al-Pd at 500 °C. Electron microprobe analyses were performed to determine the phase compositions and phase relationships. Two ternary phases (ε and β)and 10 three-phase equilibria were determined in Au-Al-Cu system. The δ(Au2Al) phase exhibited a wide range of solubility and a peculiar morphology. The average interdiffusion coefficients of δ(Au2Al) phase obtained at 500 °C are:
=(-1.47±0.10) ×10-8 cm2/sec =(-1.46±0.09) ×10-8 cm2/sec
=(1.47±0.09) ×10-8 cm2/sec =(1.46±0.08) ×10-8 cm2/sec
Two ternary phases (T1 and T2) and 13 three-phase equilibria were identified in Au-Al-Pd system. Phase T1 contained 37 at% Au, 26 at% Pd, and 37 at% Al. Phase T2 contained 44 at% Au, 24 at% Pd, and 32 at% Al. The average interdiffusion coefficients of Au2Al phase obtained at 500 °C are:
=(-2.75±0.04) ×10-10 cm2/sec =(-5.02±0.04) ×10-10 cm2/sec
=(2.33±0.03) ×10-10 cm2/sec =(4.74±0.03) ×10-10 cm2/sec
The solubility ranges of the binary intermetallic phases were also determined in this study.
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author2 |
Ker-Chang Hsieh |
author_facet |
Ker-Chang Hsieh Jyun-lin Li 李俊霖 |
author |
Jyun-lin Li 李俊霖 |
spellingShingle |
Jyun-lin Li 李俊霖 The Study of Phase Diagram, Diffusion Path and Diffusivities in Au-Al-Cu and Au-Al-Pd Systems Using Diffusion Couple Method |
author_sort |
Jyun-lin Li |
title |
The Study of Phase Diagram, Diffusion Path and Diffusivities in Au-Al-Cu and Au-Al-Pd Systems Using Diffusion Couple Method |
title_short |
The Study of Phase Diagram, Diffusion Path and Diffusivities in Au-Al-Cu and Au-Al-Pd Systems Using Diffusion Couple Method |
title_full |
The Study of Phase Diagram, Diffusion Path and Diffusivities in Au-Al-Cu and Au-Al-Pd Systems Using Diffusion Couple Method |
title_fullStr |
The Study of Phase Diagram, Diffusion Path and Diffusivities in Au-Al-Cu and Au-Al-Pd Systems Using Diffusion Couple Method |
title_full_unstemmed |
The Study of Phase Diagram, Diffusion Path and Diffusivities in Au-Al-Cu and Au-Al-Pd Systems Using Diffusion Couple Method |
title_sort |
study of phase diagram, diffusion path and diffusivities in au-al-cu and au-al-pd systems using diffusion couple method |
publishDate |
2014 |
url |
http://ndltd.ncl.edu.tw/handle/r36w4b |
work_keys_str_mv |
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