Chemical strengthening
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…Its main application is automotive glass. Chemical strengthening is carried out by ion exchange, which has been put to practical use. Since Na + ions are present in glass, when it comes into contact with potassium nitrate molten salt, a reaction occurs near the glass surface: Na + (glass) + K + (molten salt) ⇄ K + (glass) + Na + (molten salt). … *Some of the terminology used to refer to "chemical strengthening" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
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…用途は主として自動車用ガラスである。化学強化は，イオン交換によって行う方法が実用化されている。ガラス中にはNa＋イオンが存在しているから，硝酸カリウム溶融塩と接触させるとガラスの表面付近でNa＋(ガラス)＋K＋(溶融塩)⇄K＋(ガラス)＋Na＋(溶融塩)の反応が起きる。… ※「化学強化」について言及している用語解説の一部を掲載しています。 出典｜株式会社平凡社世界大百科事典 第２版について | 情報 |
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