کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5457372 | 1515542 | 2017 | 15 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Defect processes of M3AlC2 (M = V, Zr, Ta, Ti) MAX phases
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Defect processes of M3AlC2 (M = V, Zr, Ta, Ti) MAX phases Defect processes of M3AlC2 (M = V, Zr, Ta, Ti) MAX phases](/preview/png/5457372.png)
چکیده انگلیسی
The interest on the Mn+1AXn phases (M = early transition metal; A = group 13-16 element and X = C and/or N) stems from their combination of advantageous metallic and ceramic properties. Aluminium containing 312 MAX phases in particular are deemed to enhance high-temperature oxidation resistance. In the present study, we use density functional theory calculations to study the intrinsic defect processes of M3AlC2 MAX phases (M = V, Zr, Ta, Ti). The calculations reveal that Ti3AlC2 is the more radiation tolerant 312 MAX phase considered here. In Ti3AlC2 the carbon Frenkel reaction is the lowest energy defect process with 3.17Â eV. Results are discussed in view of recent experimental and theoretical results of related systems.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Communications - Volume 261, August 2017, Pages 54-56
Journal: Solid State Communications - Volume 261, August 2017, Pages 54-56
نویسندگان
S.-R.G. Christopoulos, N. Kelaidis, A. Chroneos,