کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1885847 1533499 2016 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Non-destructive analysis of didymium and praseodymium molybdate crystals using energy dispersive X-ray fluorescence technique
ترجمه فارسی عنوان
تجزیه و تحلیل غیر مخرب بلورهای مولیبدیت دیسیومیم و پرازویدیمیم با استفاده از روش اشعه ماوراء بنفش اشعه ایکس
کلمات کلیدی
تجزیه و تحلیل اشعه ایکس، مواد نادر زمین اشعه ماوراء بنفش اشعه ماوراء بنفش رویکرد تجزیه و تحلیل اساسی، مقطع فتوالکتریک، برخورد های الاستیک و ناپیوسته
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم تشعشع
چکیده انگلیسی


• Analysis procedure can verify the formulae of newly grown materials.
• Empirical formulae can be assigned by estimating major elemental ratios.
• Rapid simultaneous scan of major elements and trace impurities can be done with minimum effort.
• Nondestructive analysis enables to retain the original sensitive materials.

Analysis of didymium (Di) and praseodymium molybdate crystals were carried out using energy dispersive X-ray fluorescence (EDXRF). The assigned empirical chemical formulae of the composites were tested and verified by the EDXRF technique by estimating experimental major elemental concentration ratios. On the Basis of these ratios, the established formulae for some of the composite materials have been verified and suggestions made for their refinement. Non-destructive technique used in this analysis enables to retain the original crystal samples and makes rapid simultaneous scan of major elements such as La, Pr, Ned and Mo as well as impurities such as Ce. Absence of samarium(Sm) in the spectrum during analysis of didymium molybdate crystals indicated an incomplete growth of mixed rare earth single crystal. These crystals (e.g.,Di) are shown to be of modified stoichiometry with Ce as trace impurity.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Radiation Physics and Chemistry - Volume 125, August 2016, Pages 9–13
نویسندگان
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