کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7965068 | 1514180 | 2015 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Self-propagating high-temperature synthesis of Y2Ti2O7 pyrochlore and its aqueous durability
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی هسته ای و مهندسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Self-propagating high-temperature synthesis of Y2Ti2O7 pyrochlore and its aqueous durability Self-propagating high-temperature synthesis of Y2Ti2O7 pyrochlore and its aqueous durability](/preview/png/7965068.png)
چکیده انگلیسی
In this study, highly densified Y2Ti2O7 pyrochlore waste forms were readily prepared within 5 min by self-propagating high-temperature synthesis plus quick pressing (SHS/QP). Fe2O3 was employed as the oxidant with Ti as the reductant. The as-prepared sample exhibits an analogous self-encapsulated morphology with Y2Ti2O7 core and Fe cladding. The synthesized pyrochlore-based waste form possesses high density of 5.35 g/cm3 and Vickers hardness of 11.5 ± 0.2 GPa, as well as excellent aqueous durability. The 28 days normalized leaching rates of Y, Ti and Fe are as low as 1.07 Ã 10â6, 6.63 Ã 10â5 and 1.42 Ã 10â5 g mâ2 dâ1.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Nuclear Materials - Volume 465, October 2015, Pages 1-5
Journal: Journal of Nuclear Materials - Volume 465, October 2015, Pages 1-5
نویسندگان
Kuibao Zhang, Guanjun Wen, Haibin Zhang, Yuancheng Teng,