Material selection for high temperature applications

Zonfrillo, Giovanni; Giovannetti, Iacopo; Manetti, Mirko

doi:10.1007/s11012-008-9126-6

Cited by 14 publications

(16 citation statements)

References 4 publications

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“…[6][7][8][9] It is important that the materials used in a bond-line have high-melting point and a high mechanical integrity at high temperatures without rapid diffusion of materials. To avoid the unwanted diffusion, it is strongly beneficial to ensure thermodynamically stable bond-lines.…”

Section: Solid-liquid Interdiffusion (Slid) Wafer-levelmentioning

confidence: 99%

High-Temperature Mechanical Integrity of Cu-Sn SLID Wafer-Level Bonds

Luu

Høivik

Wang

et al. 2015

Metall Mater Trans A

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Wafer-level Cu-Sn SLID (Solid-Liquid Interdiffusion)-bonded devices have been evaluated at high temperature. The bonding process was performed at 553 K (280°C) and the mechanical integrity of the bonded samples was investigated at elevated temperatures. The die shear strength of Cu-Sn systems shows a constant behavior (42 MPa) for shear tests performed from room temperature [RT-298 K (25°C)] to 573 K ( to 300°C). This confirms experimentally the high-temperature stability of Cu-Sn SLID bonding predicted from phase diagrams. The fractography of sheared samples indicates brittle-fracture mode for all samples shear tested from RT to 573 K (300°C). The two dominating failure modes are Adhesive fracture between the Ti-W adhesion layer and the Si, and interface fracture at the original bond interface. This indicates that the bonding material itself is stronger than the observed shear strength values, and since these interfaces can be improved with process optimization even stronger bonds can be achieved. The presented work offers fundamental evidence of the Cu-Sn SLID bonding process for operating microelectronics and MEMS at high temperature.

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Section: Solid-liquid Interdiffusion (Slid) Wafer-levelmentioning

confidence: 99%

High-Temperature Mechanical Integrity of Cu-Sn SLID Wafer-Level Bonds

Luu

Høivik

Wang

et al. 2015

Metall Mater Trans A

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“…The second phase (in the center), rich in iron (EDS 2, Fig. 6d) could correspond to the formation of a pseudo-binary phase (Fe-Cr) 2 Nb. …”

Section: Alloy 3 Andmentioning

confidence: 99%

“…These materials must have, besides an excellent resistance to oxidation at high temperature, high melting point and mechanical properties depending on temperature control [1,2]. To overcome these limitations and further performance, the use of intermetallics could open new avenues to exploit appropriate combinations.…”

Section: Introductionmentioning

confidence: 99%

Phase Equilibrium in the Fe-Cr-Nb Alloys

Mansour¹,

Boutarek²,

Aid³

et al. 2009

XXXV JEEP – 35th Conference on Phase Equilibria

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The present work is a continuation of research on alloys based on iron, aiming at understanding the solidification behaviour of Fe-Cr-Nb alloys. Ternary Fe-Cr-Nb alloys with different concentrations were arcmelted and systematically characterized by means of; differential thermal analysis, optical and scanning electron microscopy coupled to an energy dispersive X-ray microprobe analysis and X-ray diffraction.For the first time, we suspect the presence of a metastable D'-phase in Fe-rich alloy. For higher vanadium and niobium contents a competition between two eutectics, E2 and E3, is clearly shown according to the observed microstructures and the solidification sequences.

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“…The metallurgical and microstructural properties of metallic alloys change with respect to the hours in service. Selection of appropriate steels alloy for high‐temperature application is complex due to the very complex nature of corrosion at these temperatures and the lack of standardized testing practices . Lu et al studied the effect of heat treatment on the microstructural properties of plastic mold steel in chloride solution and determined the corrosion resistance of the steels increased with austenitizing temperature but decreased after tempering.…”

Section: Introductionmentioning

confidence: 99%

Effect of cyclic heat treatment process on the pitting corrosion resistance of EN‐1.4405 martensitic, EN‐1.4404 austenitic, and EN‐1.4539 austenitic stainless steels in chloride‐sulfate solution

Loto

2020

Engineering Reports

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Effect of cyclic heat treatment process on the pittingcorrosion resistance of EN-1.4405 martensitic, EN-1.4404 austenitic, and EN-1.4539 austenitic stainless steels in chloride-sulfate solution Abstract The effect of high temperature variation on the corrosion resistance of EN-1.4405, EN-1.4404, and EN-1.4539 stainless steels in 2 M H 2 SO 4 /3.5% NaCl solution was studied. Untreated EN 1.4405 exhibited the highest corrosion rate at 4.775 mm/year compared to untreated EN 1.4539 with the lowest corrosion rate (1.043 mm/year). Repetitive heat treatment significantly decreased the corrosion rate of the steels by 54.61%, 27.83%, and 50.28% to 2.167, 1.396, and 0.519 mm/year. EN-1.4539 steel exhibited the shortest metastable pitting activity among the untreated steels due to higher resistance to transient pit formation while heat treated EN-1.4404 and EN-1.4539 steels exhibited double metastable pitting activity. Heat treated EN-1.4405 was unable to passivate after anodic polarization signifying weak corrosion resistance. Pitting current of heat-treated steels was generally higher than the untreated counterparts. Heat treatment extended the passivation range value of EN-1.4405 and EN-1.4539 steels compared to those of the untreated steels. The corrosion potential of heat-treated steels significantly shifted to electronegative values. The optical image of untreated and heat treated EN-1.4404 and EN-1.4539 steels were generally similar while the images for EN-1.4405 significantly contrast each other.

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Material selection for high temperature applications

Cited by 14 publications

References 4 publications

High-Temperature Mechanical Integrity of Cu-Sn SLID Wafer-Level Bonds

High-Temperature Mechanical Integrity of Cu-Sn SLID Wafer-Level Bonds

Phase Equilibrium in the Fe-Cr-Nb Alloys

Effect of cyclic heat treatment process on the pitting corrosion resistance of EN‐1.4405 martensitic, EN‐1.4404 austenitic, and EN‐1.4539 austenitic stainless steels in chloride‐sulfate solution

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