Fe置換モルデナイトの合成と微細組織(<特集>破壊力学)

概要

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Fe-substituted mordenite, Al-mordenite (Al end-member) and Fe-mordenite (Fe end-member) were synthesized in the Na_2O-Al_2O_3-Fe_2O_3-SiO_2-H_2O system under TEA(tetraethylammonium) as a template by hydrothermal method. The hydrothermal process was performed in a stainless Morey bomb at 150℃. The continuous solid solution of Fe into Al-site in mordenite was obtained for mordenites with Al-Fe molar ratio (75/25, 50/50, 25/75). The mordenite crystal with Al-end member showed a tablet-like structure with 10μm diameter and 5μm thickness. The morphology of Fe-substituted mordenite was platelet shaped with 10μm in size. Fiber-like Fe-mordenite grew up to 30μm in length and 5μm in diameter. TEA was decomposed in air atmosphere at 440〜450℃ for Al-mordenite, Fe-mordenite, and Fe-substituted mordenites.
社団法人日本材料学会の論文
2000-08-15