Wettability of Molten Aluminum-Silicon Alloys on Graphite and Surface Tension of Those Alloys at 1273 K (1000 °C)

Mao, Weiji; Noji, Takayasu; Teshima, Kenichiro; Shinozaki, Nobuya

doi:10.1007/s11661-016-3460-4

Cited by 19 publications

(8 citation statements)

References 37 publications

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“…It is accepted that smaller contact angle means better wettability . Figure showed the wetting curves of molten fillers on SiC ceramics surface during elevating process.…”

Section: Resultsmentioning

confidence: 98%

“…It is accepted that smaller contact angle means better wettability. 12,16,17 Figure 2 showed the wetting curves of molten fillers on SiC ceramics surface during elevating process. As shown in non-coated sample, the contact angle was kept at ~145° with increasing wetting temperature indicating the non-wetting behavior of SAC on SiC ceramics.…”

Section: Wetting Behavior Of Sic Ceramicsmentioning

confidence: 99%

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Wetting behavior and brazing of titanium‐coated SiC ceramics using Sn0.3Ag0.7Cu filler

Song

Chen

et al. 2019

J Am Ceram Soc

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By coating active titanium, Sn0.3Ag0.7Cu (SAC) filler wetted SiC effectively, as the contact angle decreased significantly from ~145° to ~10°. Ti3SiC2 and TiOx (x ≤ 1) reaction layers were formed at the droplet/SiC interface, leading to the reduction of contact angle. Reliable brazing of SiC was achieved using titanium deposition at 900°C for 10 minutes, and the typical interfacial microstructure of Ti‐coated SiC/SAC was SiC/TiOx + Ti3SiC2/Sn(s,s). Comparing to direct brazing, Ti–Sn compounds in the brazing seam were effectively reduced and the mechanical property of joints was dramatically improved by titanium coating. The optimal average shear strength of SiC joints reached 25.3 MPa using titanium coating‐ assisted brazing, which was ∼62% higher than that of SiC brazed joints using SAC‐Ti filler directly.

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“…It is accepted that smaller contact angle means better wettability . Figure showed the wetting curves of molten fillers on SiC ceramics surface during elevating process.…”

Section: Resultsmentioning

confidence: 98%

Section: Wetting Behavior Of Sic Ceramicsmentioning

confidence: 99%

Wetting behavior and brazing of titanium‐coated SiC ceramics using Sn0.3Ag0.7Cu filler

Song

Chen

et al. 2019

J Am Ceram Soc

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“…In all the former studies [ 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 ], no significant work was performed on studying the wetting behavior of liquid Al-Si-Cu alloy in contact with Al dross substrate with particular emphasis on the CP procedure. Hence, the novelty of the present study is first providing wettability information of Al-Si-Cu/Al dross systems, secondly the application of the CP procedure in the Al dross wettability test, and third providing microstructural information of Al-Si-Cu/Al dross systems.…”

Section: Resultsmentioning

confidence: 99%

“…Hence, the novelty of the present study is first providing wettability information of Al-Si-Cu/Al dross systems, secondly the application of the CP procedure in the Al dross wettability test, and third providing microstructural information of Al-Si-Cu/Al dross systems. Literature survey [ 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 ] revealed that available papers are mostly concerned with the study of the wettability of pure Al [ 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 ] and its alloys [ 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 ] in contact with various types of substrates, such as Al 2 O 3 [ 29 , 34 ], TiO 2 [ 30 , 34 ], C [ 31 , 38 , 40 , 44 ], NiO [ 32 ], SiC [ 33 , 39 ], ZrO 2 [ <...>…”

Section: Resultsmentioning

confidence: 99%

“…Figure 8 shows the comparison of the present work's results with selected literature, and, as seen, the contact angle measurements in the present work were close to the Al/Al 2 O 3 results [29,34]; this may be due to the existence of Al 2 O 3 as the main non-metallic component in the utilized dross. In all the former studies [29][30][31][32][33][34][35][36][37][38][39][40][41][42][43][44][45][46][47], no significant work was performed on studying the wetting behavior of liquid Al-Si-Cu alloy in contact with Al dross substrate with particular emphasis on the CP procedure. Hence, the novelty of the present study is first providing wettability information of Al-Si-Cu/Al dross systems, secondly the application of the CP procedure in the Al dross wettability test, and third providing microstructural information of Al-Si-Cu/Al dross systems.…”

Section: Wetting Behaviour Of Al Dross Substratementioning

confidence: 99%

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Valorization of Aluminum Dross with Copper via High Temperature Melting to Produce Al-Cu Alloys

et al. 2021

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The valorization of aluminum dross for Al recovery was performed via its mixing with metallic copper to produce Al-Cu alloys. This approach was with the intention of establishing a new smelting process to treat the dross with Cu scrap use. To evaluate the high temperature interaction of the materials, the wettability of a Cu-containing aluminum alloy with the non-metallic components of the dross was studied by the sessile drop method. It was found that the wetting was weak via temperature changes at 973–1373 K, and consequently no proper metal separation occurred. To better separate the metallic and non-metallic phases with larger density differences, a higher Cu portion was considered to obtain a significantly denser metallic phase, and it was found that partial separation of the Al in an Al-Cu alloy is possible. The complete separation of the metallic components of the dross was, however, experienced by the dross and copper melting with the addition of pre-melted calcium aluminate slags at elevated temperatures. It was found that Al-Cu alloys were produced and separated from the adjacent slags, and the aluminum oxide of the dross ended up in the slag phase. Moreover, the characteristics of the produced slags depend on the process charge.

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Wettability of SnAgCu–Cr alloys on graphite with different Cr contents

Lei

Song

et al. 2018

J Mater Sci

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Wettability of Molten Aluminum-Silicon Alloys on Graphite and Surface Tension of Those Alloys at 1273 K (1000 °C)

Cited by 19 publications

References 37 publications

Wetting behavior and brazing of titanium‐coated SiC ceramics using Sn0.3Ag0.7Cu filler

Wetting behavior and brazing of titanium‐coated SiC ceramics using Sn0.3Ag0.7Cu filler

Valorization of Aluminum Dross with Copper via High Temperature Melting to Produce Al-Cu Alloys

Wettability of SnAgCu–Cr alloys on graphite with different Cr contents

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