کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1460192 989602 2015 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Electrospinning preparation and characterization of alumina nanofibers with high aspect ratio
ترجمه فارسی عنوان
آماده سازی الکتروفیزین و مشخصه نانو فیبرهای آلومینا با نسبت ابعاد بالا
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
چکیده انگلیسی

Alumina nanofibers were successfully prepared via an electrospinning technique combined with a sol–gel method. The electrospinning solution was prepared by dissolving aluminum isopropoxide (AIP) in distilled water and then mixing with a polyvinyl alcohol (PVA) aqueous solution. The as-spun fibers were calcined at different temperatures and characterized by TG–DTA, XRD, SEM–EDS, TEM–SAED, and BET analysis. Results showed that the average fiber diameter decreases with increasing calcination temperature. The as-spun nanofibers were amorphous. After calcination at 1000 °C, the nanofibers formed were composed of α-Al2O3 and γ-Al2O3, showing an average diameter of 30–90 nm and an aspect ratio of greater than 1000. The pore size of the obtained fibers was approximately 5 nm, which implies that these fibers are mesoporous materials.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 41, Issue 8, September 2015, Pages 9232–9238
نویسندگان
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