کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
795181 1466758 2008 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Gelcasting of metal powders in nontoxic cellulose ethers system
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی صنعتی و تولید
پیش نمایش صفحه اول مقاله
Gelcasting of metal powders in nontoxic cellulose ethers system
چکیده انگلیسی

A nontoxic gel system for gelcasting complex-shape metal green body was investigated. The process was based on the heat-initiated gelation characteristic of water-soluble cellulose ether (CE) or its hydroxyalkyl derivative in hydrotropic solution. In gelcasting, a highly loaded but very fluid suspension consisting of iron powder, water, antioxidant, dispersant and gelformer, was poured into a non-porous mould and gelled at 60 °C. The apparent viscosity of the suspension and factors influencing it were analyzed. The green bodies with bending strength of about 2.5 MPa had a smooth surface and homogeneous microstructure. After sintering, dense and uniform iron parts were successfully obtained.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Materials Processing Technology - Volume 208, Issues 1–3, 21 November 2008, Pages 457–462
نویسندگان
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