کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1476273 991149 2011 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Injection molding of surface modified powders with high solid loadings: A case for fabrication of translucent alumina ceramics
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Injection molding of surface modified powders with high solid loadings: A case for fabrication of translucent alumina ceramics
چکیده انگلیسی

Solid loading is a critical key to the fabrication of ceramic compacts with high densities via ceramic injection molding. As reported in most previous work, solid loading of ultra-fine alumina feedstock system could be achieved only up to ∼58 vol% with stearic acid (SA) as the surface modification agent. In present work, different from the traditional work in which SA has been introduced just in the powder blending process, we have successfully prepared the feedstock with a much higher solid loading up to ∼64 vol% by a prior ball milling treatment of ceramic powders with a small amount of SA before the traditional blending process. It can be attributed to that SA can be coated homogeneously around the powder surfaces by a chemical reaction induced by ball milling treatment. Highly translucent Al2O3 ceramics have been fabricated, which suggests an alternative route for fabrication of translucent ceramics with high quality.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the European Ceramic Society - Volume 31, Issue 9, August 2011, Pages 1611–1617
نویسندگان
, , , ,