@article{oai:nagaokaut.repo.nii.ac.jp:00000396,
 author = {横田, 良助},
 journal = {長岡技術科学大学研究報告},
 month = {Jan},
 note = {The chemical composition amenable to chemical strengthening are discussed ; They must have (a) a large diffusion coefficient of K+ ion and (b) strengthened layer of about 50M thickness. The diffusion coefficient of K+ ions is measured for the chemically strengthening glass applied to eye glasses and watch cover glasses. The extent which the various impurity ions in KNO3 fused salt exert a harmful influence upon the diffusion coefficient of K+ ions in the above glass are studied. The results are ; (a) Ca++ has the most harmful influence, Sr++ is the next, and Mg++ follows to Sr++. Na+ is weak in the harmful influence. (b) Ba++ and Zn++ follow to Na+ and Fe+++ has no influence. It is found that SiO2 doped into KNO3 fused salt with the various impurity ions reduces considerably the influence of the harmful impurity ions such as Mg++ and Na+ ions.},
 pages = {1--4},
 title = {化学強化ガラスにおけるK^+イオンの拡散と溶融塩中のシリカ及び不純物の影響},
 volume = {4},
 year = {1983}
}