尚未登入 請由此登入
 
 
 










知識分享平台Eshare檢視資訊View
返回前一頁Back
      [檢舉]

標題Title: X-ray studies of the melting and freezing phase transitions for gallium in a porous glass
作者Authors: 林開政,E. V. Charnaya..等
上傳單位Department: 機械工程系
上傳時間Date: 2010-6-30
上傳者Author: 林開政
審核單位Department: 機械工程系
審核老師Teacher: 林開政
檔案類型Categories: 論文Thesis
關鍵詞Keyword: phase transisions, x-ray
摘要Abstract: We use x-ray powder diffraction to study the melting and freezing processes for gallium within a porous
glass. The only modification to solid gallium was found above 20 K, in contrast with previous x-ray studies of
confined gallium. The size of gallium crystallites remained nearly constant during cooling and warming, while
both the melting and freezing processes were smeared. The size of confined gallium crystallites was estimated
as 22 nm, which is significantly larger than the pore size. The reasons for the phase-transition broadening and
hysteresis between freezing and melting are discussed on the basis of the results obtained.

檔案名稱
FileName
檔案大小
Size
檔案格式
Format
瀏覽次數
Browses
下載次數
Downloads
2010_6_72ff25d6.pdf 64Kb pdf 378 102
文件中檔案:
 

開啟檔案Download
 
 
返回前一頁