کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7989812 | 1515946 | 2018 | 23 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Nanolaminated ternary carbide (MAX phase) materials for high temperature applications
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
There is a clear need for high-strength (â¥Â 300 MPa), thermally stable, conductive materials that are also thermal shock resistant. Some MAX phases - ternary nano-laminated carbides and nitrides - are reported to fulfil all these requirements and can be considered as potential structural materials for high-temperature applications. In this work, a set of quaternary (M,Mâ²)AX phase materials based on the Nb-Al-C system were synthesized by reactive hot pressing, starting from M-hydride powders. The possibility to substitute Nb with at least 10 at% of other M elements (Mâ²Â = Ti, Zr, Hf and Ta) in the crystal lattice was investigated. The crystal structure of the produced solid solutions was studied by X-ray diffraction and the lattice parameters were calculated by Rietveld refinement. The material behaviour in an inert atmosphere was tested by measuring the elastic properties - Young's Modulus and internal friction - as a function of temperature up to 1500 °C, and the effect of the substitution on the room temperature flexural strength was assessed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Refractory Metals and Hard Materials - Volume 72, April 2018, Pages 51-55
Journal: International Journal of Refractory Metals and Hard Materials - Volume 72, April 2018, Pages 51-55
نویسندگان
T. Lapauw, A.K. Swarnakar, B. Tunca, K. Lambrinou, J. Vleugels,