کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5439198 | 1398192 | 2017 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of Li addition on the formation of Na-β/βʹʹ-alumina film by laser chemical vapor deposition
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Effect of Li addition on the formation of Na-β/βʹʹ-alumina film by laser chemical vapor deposition Effect of Li addition on the formation of Na-β/βʹʹ-alumina film by laser chemical vapor deposition](/preview/png/5439198.png)
چکیده انگلیسی
Films composed of a mixture of Na-β- and βʹʹ aluminas (β/βʹʹ-alumina) were prepared via laser chemical vapor deposition (CVD) upon the addition of Li. The effect of the Li source gas on the phase formation, microstructure and deposition rates of the β/βʹʹ-alumina films was investigated. The Na-β/βʹʹ-alumina films were formed at a Li/Al precursor supply ratio (RLi/Al) of 0.1-1.0 within a deposition temperature (Tdep) range of 1100-1220 K. The Na-β/βʹʹ-alumina phase was exclusively formed at Tdep=1165-1185 K and RLi/Al=0.1-0.5, whereas α-Al2O3 (with minor amounts of LiAlO2 and LiAl5O8) was predominantly observed at Tdep>1223 K and RLi/Al >1.0. The Na-β/βʹʹ-alumina films were composed of polygonal facets in sizes of several hundred nanometers with a columnar cross section. The deposition rate of the Na-β/βʹʹ-alumina film was 60 µm hâ1.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 43, Issue 1, Part B, January 2017, Pages 1278-1283
Journal: Ceramics International - Volume 43, Issue 1, Part B, January 2017, Pages 1278-1283
نویسندگان
Chen Chi, Hirokazu Katsui, Takashi Goto,