کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1475546 1510143 2013 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Partial wet route for YAG powders synthesis leading to transparent ceramic: A core–shell solid-state reaction process
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Partial wet route for YAG powders synthesis leading to transparent ceramic: A core–shell solid-state reaction process
چکیده انگلیسی

Synthesis of Y3Al5O12 (YAG) powders respectively presents morphology control and chemical stoichiometry problems when employing the solid-state reaction or the wet-chemical route. YAG powder retaining the morphology of Al2O3 powder was designed and synthesized via a partial wet-chemical process with yttrium ions precipitating on the Al2O3 particles. The formation process of the Y-compound/Al2O3 core–shell structure is discussed on the basis of zeta-potential measurements and HRTEM results. Two stages, including direct precipitation at the surface of the Al2O3 particles and the assembly of the yttrium precipitate from explosive nucleation onto the yttrium compound-coated Al2O3 particles, are proposed. A spherical surface reaction process is illustrated. A pure YAG phase can be realized at a temperature about 300 °C lower than that of the traditional solid-state reaction process.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the European Ceramic Society - Volume 33, Issues 13–14, November 2013, Pages 2617–2623
نویسندگان
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