کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1477574 991188 2008 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Heterocoagulation-spray drying process for the inclusion of ceramic pigments
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Heterocoagulation-spray drying process for the inclusion of ceramic pigments
چکیده انگلیسی

The improvement of the physico-chemical resistance of hematite pigment in ceramic bodies has been pursued through its inclusion into a transparent and refractory matrix of silica or zirconia. The inclusion process was accomplished by heterocoagulation followed by spray-drying. The heterocoagulation process was optimised through an electrokinetic technique, that measured the ζ potential of both matrix and pigment as a function of pH and of different amounts of dispersing agents. Suspensions of pigment and matrix were designed in order to achieve the maximum surface charges. The heterocoagulated mix was then spray-dried in order to avoid any separated coagulation of pigment and matrix and to obtain a well granulated powder suitable for application in ceramic bodies. A stable red-coloured ceramic pigment for low firing applications was obtained starting from amorphous silica as matrix and hematite as colorant.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the European Ceramic Society - Volume 28, Issue 1, 2008, Pages 169–176
نویسندگان
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