کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5459417 1516176 2017 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Structural, morphological and optical investigations of θ-Al2O3 ultrafine powder
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Structural, morphological and optical investigations of θ-Al2O3 ultrafine powder
چکیده انگلیسی
Single-phase θ-Al2O3 nanopowder has been synthesized by co-precipitation technique. The synthesized powders were sintered at a temperature ranging from 900 to 1200 °C. A stable monoclinic phase is observed for the whole sintering temperature range. The purity, chemical bonds, morphology and optical properties of the powders were investigated by different characterization techniques. X-ray diffraction and Brunauer-Emmett-Teller analysis confirms the existence of ultrafine alumina powders with particle diameter of ∼5 nm and surface area of 100 m2/g. The novel optical results such as band gap of 5.8 eV would reveal the viability of observed phase of alumina in advanced semiconductor applications.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 718, 25 September 2017, Pages 1-6
نویسندگان
, , ,