کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7176413 | 1466712 | 2018 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Active brazed Invar-SiO2f/SiO2 joint using a low-expansion composite interlayer
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی صنعتی و تولید
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
An AgCu-4.5Â wt.%Ti/W/AgCu-1Â wt.%Ti composite interlayer was designed to braze the Invar-SiO2f/SiO2 joints. Ti contents in the interlayer between the tungsten foil and the Invar alloy was optimized. The effects of the tungsten-foil thickness on the microstructure, elemental distribution and mechanical properties of the brazed joints were investigated. Compared with a single AgCu-4.5Â wt.%Ti interlayer, a sufficient metallurgical reaction happened on the SiO2f/SiO2 composite side and the formation of Fe2Ti, Ni3Ti compounds which are detrimental to the joint properties, was greatly inhibited by using a low-expansion composite interlayer (LECI). The tungsten interlayer can reduce the CTE (coefficient of thermal expansion) mismatch in the Invar-SiO2f/SiO2 joint. The highest shear strength of joints brazed with an LECI was 33Â MPa, which was 1.75 times higher than the joints brazed with a single AgCu-4.5Â wt.%Ti interlayer.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Materials Processing Technology - Volume 255, May 2018, Pages 8-16
Journal: Journal of Materials Processing Technology - Volume 255, May 2018, Pages 8-16
نویسندگان
Z. Sun, L.X. Zhang, Q. Chang, Z.H. Zhang, T.D. Hao, J.C. Feng,