کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7976571 | 1514693 | 2016 | 29 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Microstructure and strengthening mechanism of Si3N4/Invar joint brazed with TiNp-doped filler
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Microstructure and strengthening mechanism of Si3N4/Invar joint brazed with TiNp-doped filler Microstructure and strengthening mechanism of Si3N4/Invar joint brazed with TiNp-doped filler](/preview/png/7976571.png)
چکیده انگلیسی
Ag-Cu-Ti+TiNp composite filler was developed to braze Si3N4 ceramic to Invar alloy, and subsequently the effect of TiNp content on the microstructure and mechanical properties of the joints was investigated. The typical microstructure of the brazed joints is Si3N4/TiN+Ti2N+TiSi+Fe2Ti/Ag(s.s)+Cu(s.s)+TiNp/wavelike Fe2Ti+Ni3Ti/Ag-Cu eutectic/Invar alloy. With the increase of TiNp content, the reaction layers near the Si3N4 become thinner, and Ag-Cu eutectic appears less and finer between the ceramic and wavelike intermetallics. The maximum shear strength increases from 63Â MPa to 229Â MPa with the optimum TiNp content of 2Â vol%, compared with the case without TiNp. The hardness and elastic modulus of the reaction phases were characterized by nanoindentation to reveal the strengthen of brazing seam. The following reasons are believed to strengthen the brazed joint: the thermal expansion coefficient (CTE) reduction of the composite filler, appropriate thickness of the Si3N4/braze reaction layer, the strengthen of the braze.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 650, 5 January 2016, Pages 469-477
Journal: Materials Science and Engineering: A - Volume 650, 5 January 2016, Pages 469-477
نویسندگان
Tianpeng Wang, Chunfeng Liu, Christian Leinenbach, Jie Zhang,