本研究是將AA6063鋁合金散熱片，置於偏矽酸鈉混合氫氧化鉀的電解液中，進行不同占空比及反應頻率的液態電漿處理，使其表面生成氧化膜，進一步將散熱片裝設於微型電腦中做散熱測試，再以XRD、Scanning Electron Microscopy (SEM)、Energy Dispersive Spectrometer (EDS)材料成份分析及表面粗糙度進行分析。
氧化鋁膜層的表面粗糙、膜層厚度，與占空比及脈衝頻率參數的設定有關，在微型電腦的運算器上安裝氧化膜層較厚、粗糙度較高的散熱片，進行溫度測試，可以到較佳的降溫效果。由實驗參數可得知在脈衝頻率250 Hz條件下，相同duty cycle可獲得較大Ra。占空比75%能獲得較厚的膜層及較高的表面粗糙度。由實驗結果發現，在經過液態電漿處理後的散熱片，表面氧化膜的厚度及表面粗糙度會增加，對於散熱片的散熱有改善。

Plasma electrolytic oxidation coating was prepared on 6063 aluminum alloy by electrolyte of Na2SiO3 and KOH. different duty cycle and frequency response of plasma processing liquid to the surface oxide film, further installation of cooling fins do tests to mini-computer, and then to XRD, Scanning Electron Microscopy (SEM), Energy Disper-sive Spectrometer (EDS) analysis of the material composition and surface roughness analysis.

The alumina film surface roughness, film thickness, and set the pulse frequency and duty cycle parameters related to installation oxide layer on a mini-computer operator thicker, higher roughness heat sink temperature test, you can go to a better cooling effect. The experimental parameters can be learned at the pulse frequency 250 Hz conditions, the same duty cycle available to a larger Ra. Duty cycle of 75% can be obtained and a thicker layer of higher surface roughness. From the experimental results we found that after plasma treatment liquid heat sink, thickness and surface roughness of the surface oxide film will increase the heat sink for improved heat dissipation.

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