کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9795999 | 1514939 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Mg alloy infiltrated Si-O-C ceramic foams
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
Magnesium alloys reinforced with an open cell ceramic foam form interpenetrating phase composites that offer improved strength and creep resistance at elevated temperatures. Open cell polymer derived Si/SiC/Si-O-C ceramic foams were fabricated from Si/SiC loaded poly(silsesquioxane) by an in situ foaming process at 270 °C followed by pyrolysis at 1000 °C in inert atmosphere. The ceramic foams are characterized by a high interconnectivity of the foam cells and a pore diameter ranging from 0.5 to 2.0 mm. The compression strength exceeds 4 MPa at a fractional density of 27%. Interpenetrating AZ91 Mg alloy/ceramic foam composites were manufactured by squeeze casting. Interface bonding between the metal phase and the ceramic skeleton was triggered by controlled pre-oxidation annealing of the ceramic foam and gave rise for significant improvement of the crushing strength.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 403, Issues 1â2, 25 August 2005, Pages 215-221
Journal: Materials Science and Engineering: A - Volume 403, Issues 1â2, 25 August 2005, Pages 215-221
نویسندگان
Jürgen Zeschky, Jason Lo, Thomas Höfner, Peter Greil,