Mg-Al ЖҮЙЕСІНДЕ Mg17Al12 ФАЗАСЫНЫҢ БАҚЫЛАНАТЫН ҚАЛЫПТАСУЫ АРҚЫЛЫ СУТЕГІН СІҢІРУ КИНЕТИКАСЫН АРТТЫРУ

Бұл жұмыста Mg-Al жүйесін зерттеу нәтижелері ұсынылған, оның мақсаты фазалық құрамды және синтез параметрлерін оңтайландыру арқылы сутегін сіңіру кинетикасын арттыру болып табылады. Синтез режимін таңдау үшін Thermo-Calc бағдарламасында үшөлшемді термодинамикалық модельдеу жүргізілді, ол Mg қатты ерітіндісін сақтай отырып, Mg₁₇Al₁₂ интерметалдық фазасының тұрақтылық температура-концентрациялық аймақтарын анықтауға мүмкіндік берді. Алынған нәтижелер негізінде ұнтақтарды механикалық синтездеу және оларды 350 ℃ температурада ұшқынды плазмалық спекание әдісімен өңдеу жүзеге асырылды. Рентгенофазалық талдау эксперименттік фазалық құрамның есептік болжамдарға сәйкес келетінін растады. Mg₁₇Al₁₂ фазасының оңтайлы мөлшері бар үлгілер (30 масс.%) таза Mg-мен салыстырғанда 300 ℃ температурада және 20 бар қысымда сутегін сіңіру жылдамдығының екі есе артқанын көрсетті. Алынған нәтижелер қатты күйдегі сутегі сақтау материалдарын жетілдірілген кинетикалық сипаттамалармен әзірлеуде термодинамикалық модельдеу мен жоғары қарқынды синтез технологияларын үйлестірудің тиімділігін дәлелдейді.

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