頁籤選單縮合
題名 | Ag狇-K狇lon-Exchange in BK1 Glass=BK1玻璃內銀-鉀離子交換 |
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作者 | 謝建中; 卓星在; 蔡大翔; Hsieh, Chien-chung; Cho, Hsing-tsai; Tsai, Dah-shyang; |
期刊 | Journal of the Chinese Institute of Chemical Engineers |
出版日期 | 19980100 |
卷期 | 29:1 1998.01[民87.01] |
頁次 | 頁39-44 |
分類號 | 460.02 |
語文 | eng |
關鍵詞 | BK1玻璃; 銀-鉀離子交換; Ion exchange; Self-diffusion coefficient; Silver; Potassium; Molten salt; |
中文摘要 | 本文報告BK1光學玻璃浸於氯化銀╱氯化鋅熔融鹽內進行銀╱鉀離子交換的結果, 銀與鉀離子在 BK1 內之濃度分佈數據可用擴散數學模式描述, 此模式以銀離子、鉀離子之 自擴散係數作為參數,由 470、500、520、540 ℃離子交換所得之自擴散係數,可求得鉀離 子自擴散之活化能 22.4 千卡╱莫耳,銀離子自擴散之活化能 35.4 千卡╱莫耳。 |
英文摘要 | Ag��-K�告on exchange is carried out by immersing a BK1 glass cylinder in a AgCl/ZnCl �� molten salt. The concentration profiles of silver and potassium in BK1 are measured and correlated using a mathematical model with self-diffusion coefficients as undetermined parameters. Self-diffusion coefficients of Ag �� and K �� are estimated from the ion concentration profiles after exchange for 6 days at 470, 500, 520, 540 ℃. The activation energies of self-diffusion coefficients of K �� and Ag �� are found to be 22.4 and 35.4 kcal/mol, respectively. |
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