کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5440907 1398240 2017 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Mechanical properties of zirconia core-shell rods with porous core and dense shell prepared by thermoplastic co-extrusion
ترجمه فارسی عنوان
خواص مکانیکی ذرات هسته پوسته زیرکونیا با هسته متخلخل و پوسته انبوه آماده شده توسط اکستروژن ترکیبی گرمانرم
کلمات کلیدی
زیرکونیا، اکستروژن هم هسته پوسته، ساختار متخلخل ویژگی های مکانیکی،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
چکیده انگلیسی
Bi-layered zirconia rods of core-shell geometry with a porous core of different core porosities and a dense shell of various shell thicknesses were investigated. Core-shell structures were successfully prepared by thermoplastic co-extrusion of assembled feedrods. For comparison, non-layered rods with different porosities and tubes were also prepared. Mechanical properties of sintered core-shell rods were determined and compared with the properties of non-layered rods and tubes. Increasing porosity in the core of the core-shell rods decreased Young's modulus and the dense shell improved the fracture resistance of the core-shell rods against bending loading. The fracture force of core-shell rods was in all cases considerably higher than the fracture force of non-layered porous rods or tubes with the same Young's modulus. The fracture behaviour of core-shell rods and tubes was analysed and correlated with the calculated stress distribution in these structures. The principle of the core-shell concept was described and discussed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the European Ceramic Society - Volume 37, Issue 6, June 2017, Pages 2439-2447
نویسندگان
, , , ,