Joining interface and compressive strength of brazed cubic boron nitride grains with Ag-Cu-Ti/TiX composite fillers

Miao, Qing; Ding, Wenfeng; Zhu, Yumei; Chen, Zhenzhen; Xu, Jie; Yang, Chuanfang

doi:10.1016/j.ceramint.2016.05.171

Cited by 31 publications

(4 citation statements)

References 52 publications

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“…is shows a reasonable increase in hardness (11.5%) of the filler matrix. is increase in microhardness value can be ascribed to the fine microstructure containing finer IMCs and Cu-and Ag-rich phases in the Ag-Cu-Ti matrix [31,32]. e presence of an optimum amount of harder CeO 2 (0.05 wt%) particles in the matrix results in the hindrance of localized plastic deformation of the matrix when CeO 2 particles are present.…”

Section: Microhardnessmentioning

confidence: 99%

Brazeability, Microstructure, and Joint Characteristics of ZrO₂/Ti-6Al-4V Brazed by Ag-Cu-Ti Filler Reinforced with Cerium Oxide Nanoparticles

Sharma

Ahn

2019

Advances in Materials Science and Engineering

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In this work, we have attempted to develop the Ag-Cu-Ti filler for bonding ZrO 2 to Ti-6Al-4V. e CeO 2 nanoparticles were reinforced in the eutectic Ag-Cu-Ti filler via mechanical mixing and melting route. Furthermore, the brazeability, microstructure, and mechanical behavior, as well as brazing performance of the ZrO 2 /Ti-6Al-4V joints, were assessed. e wettability of the Ag-Cu-Ti matrix was increased from 89 to 98% on Ti-6Al-4V and from 83 to 89% on the ZrO 2 substrate after the addition of 0.05% CeO 2 . Also, there was a depression in the melting point of the composite fillers up to 3°C. e microstructure consists of Cu-and Ag-rich phases and Cu-Ti intermetallic compounds (IMCs). e joint shear strength was improved with the addition of CeO 2 up to 0.05 wt.% in the matrix. It was inferred that, for an excellent brazing performance of the ZrO 2 /Ti-6Al-4V joint, the optimum amount of CeO 2 should be 0.05 wt.% in the Ag-Cu-Ti matrix.

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Section: Microhardnessmentioning

confidence: 99%

Brazeability, Microstructure, and Joint Characteristics of ZrO₂/Ti-6Al-4V Brazed by Ag-Cu-Ti Filler Reinforced with Cerium Oxide Nanoparticles

Sharma

Ahn

2019

Advances in Materials Science and Engineering

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“…The addition of several active elements can also contribute to various IMCs, Cu-Ti, Cu 3 Ti, Ti 3 SiC 2 , etc. Due to these brittle IMCs, the joint cannot be operated at high temperatures [6][7][8][9][10][11][12]. Therefore, the key factor to braze ceramics to metals is to look for new fillers for brazing where active elements (Ti, Zr, etc.)…”

Section: Introductionmentioning

confidence: 99%

High-Entropy Alloys for Micro- and Nanojoining Applications

Sharma¹

2020

Engineering Steels and High Entropy-Alloys

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The aim of this chapter is to provide a basic understanding of the metal-ceramic joints and high-entropy alloy (HEA) research in microjoining applications. We will first overview the issues in metal-ceramic brazing and solutions to overcome those issues using various fillers. Various approaches are available for joining ceramic to metallic materials. One approach will be to look for brazing alloys with the so-called high-entropy characteristics which exhibit a solid solution phase. The conventional alloy design and arc melting, Bridgman solidification, and advanced powder metallurgy techniques will be studied, including high-energy ball milling (HEBM) for the mechanical alloying process, and hot-press and spark plasma sintering (SPS) techniques are utilized for improved densification and phase transformation. We also summarize the various thermodynamic relations to obtain the high-entropy phase and present future possibilities of high-entropy alloys in microjoining research at the later stage of this chapter.

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“…For ceramic-metal combinations, various brazing alloys, such as Ag-Cu, Ag-Cu-Ti, Cu-Sn-Ti, Cu-Ni-Ti, etc., have been investigated [19][20][21][22][23]. Recently, the use of composite fillers, such as Ag-Cu-Ti-SiC and Ag-Cu-Ti-TiX, to braze ceramicmetal joints have also been attempted [24,25]. On the other hand, the segregation of ceramic nanomaterials in composite fillers a serious issue that cannot be tolerated.…”

Section: Introductionmentioning

confidence: 99%

Effect of Sn Content on Filler and Bonding Characteristics of Active Metal Brazed Cu/Al2O3 Joint

Shin¹,

Sharma²,

Jung³

et al. 2018

Korean J. Met. Mater.

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This study examined the effects of the Sn content in a pure active metal filler Ag-Cu-Ti for the brazing of a Cu/ Al 2 O 3 joint. The optimal content of Sn to effectively wet alumina was 5 wt%. The microstructure of the brazed joint showed the presence of an Ag-rich matrix and a Cu-rich phase, and Cu-Ti intermetallic compounds were observed along the bonded interface. The intermetallic compounds (IMCs) in the filler are found to increase when the Sn content in the alloy approaches to 10 wt%. These results suggest an extremely significant bonding strength of Cu/Al 2 O 3 joint using the Ag-Cu-Ti+Sn filler. The shear strength of the brazed joint increased with Sn content up to 5 wt%, reaching a maximum at ≈15 MPa. In addition, the strength decreased when the Sn content was higher than 5 wt%.

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Joining interface and compressive strength of brazed cubic boron nitride grains with Ag-Cu-Ti/TiX composite fillers

Cited by 31 publications

References 52 publications

Brazeability, Microstructure, and Joint Characteristics of ZrO₂/Ti-6Al-4V Brazed by Ag-Cu-Ti Filler Reinforced with Cerium Oxide Nanoparticles

Brazeability, Microstructure, and Joint Characteristics of ZrO₂/Ti-6Al-4V Brazed by Ag-Cu-Ti Filler Reinforced with Cerium Oxide Nanoparticles

High-Entropy Alloys for Micro- and Nanojoining Applications

Effect of Sn Content on Filler and Bonding Characteristics of Active Metal Brazed Cu/Al2O3 Joint

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Joining interface and compressive strength of brazed cubic boron nitride grains with Ag-Cu-Ti/TiX composite fillers

Cited by 31 publications

References 52 publications

Brazeability, Microstructure, and Joint Characteristics of ZrO2/Ti-6Al-4V Brazed by Ag-Cu-Ti Filler Reinforced with Cerium Oxide Nanoparticles

Brazeability, Microstructure, and Joint Characteristics of ZrO2/Ti-6Al-4V Brazed by Ag-Cu-Ti Filler Reinforced with Cerium Oxide Nanoparticles

High-Entropy Alloys for Micro- and Nanojoining Applications

Effect of Sn Content on Filler and Bonding Characteristics of Active Metal Brazed Cu/Al2O3 Joint

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Brazeability, Microstructure, and Joint Characteristics of ZrO₂/Ti-6Al-4V Brazed by Ag-Cu-Ti Filler Reinforced with Cerium Oxide Nanoparticles

Brazeability, Microstructure, and Joint Characteristics of ZrO₂/Ti-6Al-4V Brazed by Ag-Cu-Ti Filler Reinforced with Cerium Oxide Nanoparticles