作者lorance (站在世界的頂端)
看板ChemEng
標題Re: [問題] 金屬薄膜形成島嶼
時間Thu Nov 27 15:09:16 2008
※ 引述《hodancebear (Arvin)》之銘言：
: 小弟不才有個疑問想問一下各位板大
: 利用濺鍍法鍍的金屬薄膜(薄薄一層)
: 在經過高溫熱處理後
: 為什麼金屬薄膜會漸漸分裂
: 然後形成一塊一塊的島嶼狀分佈
: 這是利用什麼原理所造成的現象
: 我對這方面知識不太懂
: 感謝大家回覆!
這不是分裂
It is caused by thermal induced migration of the surface atoms, causing
the re-construct.
It may also caused by the relaxation of the thermal strain or structure strain
induced by the lattice mismatch, resulting the surface migration as well as
the re-construct.
when the nucleation site is rare on the surface, it could form the island
structure.
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要相信這是巧合還是神蹟～
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1F：推 hodancebear:thanks! 12/02 12:52