ФЕРРИТТЕРДЕГІ РАДИАЦИЯЛЫҚ ТЕРМИЯЛЫҚ КҮЙДІРУ КЕЗІНДЕГІ ФАЗАЛЫҚ ТҮРЛЕНДІРУЛЕР.
DOI:
https://doi.org/10.31489/2020No1/26-34Кілт сөздер:
литий титан ферриті, ұнтақ, агломерация, электронды сәулелер, электронды микроскопия, морфология, фазалық құрам, ақаулық.Аңдатпа
"Литий-титан ферритті ұнтақтардың және радиациялық-термиялық және термиялық эффекттер жағдайында ыдыратылған керамикалық үлгілердің фазалық құрамының, морфологиясының және ақаусыз құрылымының электронды микроскопиялық зерттеу жүргізілді. Феррит үлгілерін радиациялық-термиялық түрлендіру сынамаларды электронды үдеткіш көмегімен (1,5-2,0) МэВ энергиясы бар импульсті электронды шоқпен сәулелендіру арқылы жүзеге асырылды. Импульстегі сәулелік тоқ (0,5-0,9) А, сәулелену импульсінің ұзақтығы 500 мкс, пульстің қайталану жиілігі (5-50) Гц, сынаманы қыздыру жылдамдығы -1000 С/мин дейін іске асырылды. Үлгілер қалыңдығы 15 мм болатын шам отты жеңіл қорапта сәулелендірілді. Микроқұрылымды зерттеу электронды микроскоптың көмегімен жарықтың дифракциялық электронды микроскопиясымен жүргізілді. Ферриттердің қалыптасу процесінің радиациялық қарқындылығының ең ықтималды моделі ферриттің аралық фазаларының дәндерінде суброгендік шекаралардың ыдырауы кезінде пайда болған қыздыру кезіндегі дислокациялардың радиациялық тежелу механизмі бола алатындығы көрсетілген "
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