کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1584337 | 1514902 | 2007 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Carbon nanofiber-reinforced alumina nanocomposites: Fabrication and mechanical properties
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
This work reports for the first time the fabrication and mechanical properties of hot-pressed alumina reinforced with 1, 2.5 and 5 vol.% carbon nanofiber (CNF). An improvement in fracture toughness of ∼13% over pure alumina was observed in the alumina reinforced with 2.5 vol.% CNF, whereas hardness and bending strength of the nanocomposites were reduced with increasing the volume fraction of CNF. Annealing at 1300 °C in air for 2 h led to the enhancement in the bending strength as high as 33% in the 5 vol.% CNF-reinforced alumina. This improvement is attributed to crack healing in parallel with an oxidation reaction of the CNF, leading to a reduction in the surface flaw density and critical flaw size.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 447, Issues 1–2, 25 February 2007, Pages 44–50
Journal: Materials Science and Engineering: A - Volume 447, Issues 1–2, 25 February 2007, Pages 44–50
نویسندگان
Santi Maensiri, Paveena Laokul, Jutharatana Klinkaewnarong, Vittaya Amornkitbamrung,