發問時間: 科學化學 · 1 0 年前

材科翻譯~interstitial and vacancy

Q1: compare interstitial and vacancy atomic mechanisms for diffusion

Q2:why interstitial diffusion is normally more rapid than vacancy diffusion

(a) With vacancy diffusion, atomic motion is from one lattice site to an adjacent vacancy.

Self-diffusion and the diffusion of substitutional impurities proceed via this mechanism.

On the other hand, atomic motion is from interstitial site to adjacent interstitial site for the interstitial diffusion mechanism.

(b) Interstitial diffusion is normally more rapid than vacancy diffusion because: (1) interstitial atoms,being smaller, are more mobile; and (2) the probability of an empty adjacent interstitial site is greater than for a vacancy adjacent to a host (or substitutional impurity) atom.

可以請看的懂的人幫我翻譯嗎?

1 個解答

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  • 1 0 年前
    最佳解答

    interstitial diffusion: 間隙型擴散, 原子與原子間的空隙,而較小的原子能藉由那些空隙擴散

    vacancy diffusion: 空孔擴散,規則的原子排列,其中有些原子的位置並沒有原子佔據而形成一些空孔,原子則藉由這些空孔進行位置的交換,進行擴散

    diffusion mechanism:擴散機制.擴散機構

    lattice site: 晶格位置; impurities: 不純物或雜質

    substitutional:取代的

    probability:機率

    atomic motion:原子的移動

    專有名詞大概都翻譯了, 其他的應該不難囉

    加油

    2006-11-16 01:20:53 補充:

    vacancy diffusion是原子與鄰近的空孔進行位置交換,然後持續相同動作以達到擴散的目的

    參考資料: 自己
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