کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1464998 989677 2006 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Preparation of bulk Si3N4 from tape casting and lamination
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Preparation of bulk Si3N4 from tape casting and lamination
چکیده انگلیسی

Si3N4 samples were prepared by tape casting, laminating and hot pressing (HP)/spark plasma sintering (SPS). Initially, the as-received Si3N4 powders were chemically treated to improve the dispersion in aqueous media. After surface treatment, a decrease in zeta potential was observed in the basic region. Rheological measurements showed that 40 vol.% Si3N4 slips exhibited a well deflocculated state in the presence of the sintering additives. After the addition of binder and plasticizer, Si3N4 slurries exhibited a shear thinning behavior. The dried green sheets were smooth and homogeneous on both sides. The Si3N4 samples were densified by HP and SPS. A good homogeneity is observed and no single layers can be distinguished in the fracture surface. The mechanical properties were also studied.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 32, Issue 3, 2006, Pages 277–282
نویسندگان
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