کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
237830 465727 2011 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Fabrication of a material with composition gradient for metal/ceramic assembly
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Fabrication of a material with composition gradient for metal/ceramic assembly
چکیده انگلیسی

This study presents a method and an apparatus for fabricating graded materials with powders. The application is about making some transition interlayer components when assembling metal to ceramic by brazing for example. The chosen applicative couple is inco600 with zirconia. The densification technique is hot isostatic pressing. After calibration of the equipment designed to make some bi-constituent powder gradients, a cylindrical component with a symmetrical axial gradient has been manufactured. Phase volume fraction composition determined through image analysis and micro-hardness study has demonstrated that the obtained composition and properties vary continuously along the gradient direction. The fabricated material also exhibits some cracks probably due to low sinterability of zirconia used (50 μm balls). Other tests should be done with a finer zirconia powder. This technique should then be employed to fabricate ceramic metal assemblies through the manufacture of intermediated graded parts between the metal and ceramic components.

Graphical AbstractThe procedure and device for fabricating gradient material made of inco600 and zirconia is described. After calibration of the device and adjustments of the Hot Isostatic Pressing conditions, symmetrical gradient along cylindrical parts have been made. The results are analyzed through SEM imaging and hardness scanning along the gradient direction.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Powder Technology - Volume 208, Issue 2, 25 March 2011, Pages 355–366
نویسندگان
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