Liquid metal/ceramic interactions in the (Cu, Ag, Au)/ZrB2 systems

Passerone, A.; Muolo, Maria Luigia; Novaković, R.; Passerone, Daniele

doi:10.1016/j.jeurceramsoc.2006.12.008

Cited by 60 publications

(22 citation statements)

References 42 publications

(32 reference statements)

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“…Though, the densification was not that significant, possibly due to the particle size ratio. However, the achieved densification results shown in figure 1 were possible due to particle size of the reinforcement and good wettability of Zr with Fe (Sebo et al, 1994;Passerone et al, 2007). The PSZ were of nano size (50 nM), they were able to fill up the pores created by the DSS powders as a result of proper and adequate mixing, thereby reducing the overall porosity of the sinter sample.…”

Section: Resultsmentioning

confidence: 99%

“…Cr and Ni addition also contributed to the densification obtained. Given that Cr is abrasive therefore tends to reduce (Ming et al, 2010, Passerone et al, 2007Chen, Li, Liu & Cao, 2007). Ni, on the other hand, considering the melting point, melts and flow by capillary to fill up the open pores created within the composite (Chen et al, 2007).…”

Section: Resultsmentioning

confidence: 99%

“…Duplex stainless steel (DSS) composites obtained by powder metallurgy route which has been reported elsewhere were used for this studies (Passerone, Muolo, Novakovic & Passerone, 2007;Dobrzanski, Brytan, Grande & Rosso, 2007). The starting materials used for the DSS based composites consists of atomized stainless 2205 powder (average size 22 µm) whose composition is presented in table 1, partially stabilize zirconia (PSZ, 3% mole fraction) powder of average particle size of 50 nm was dispersed as reinforcement, chromium and nickel were added as alloying elements.…”

Section: Methodsmentioning

confidence: 99%

See 2 more Smart Citations

Tribological study of hot pressed oxide dispersion strengthened 2205 DSS composite

Olaniran

Olubambi²,

Potgieter³

et al. 2014

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Tribological study of hot pressed oxide dispersion strengthened 2205 DSS composite

Olaniran

Olubambi²,

Potgieter³

et al. 2014

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“…Among numerous factors affecting wetting properties of metal/ceramic systems discussed in the works (Ref [14][15][16][17][18], for experimental data reported for the Al/ZrB 2 system (Ref [5][6][7][8][9][10][11], two factors seem to have the strongest effect on the contact angle measurements:…”

Section: Introductionmentioning

confidence: 99%

Wettability and Reactivity of ZrB2 Substrates with Liquid Al

Nowak¹,

Sobczak

Bruzda³

et al. 2016

J. of Materi Eng and Perform

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Wetting characteristics of the Al/ZrB 2 system were experimentally determined by the sessile drop method with application of separate heating of the ZrB 2 and Al samples and combined with in situ cleaning of Al drop from native oxide film directly in vacuum chamber. The tests were performed in ultrahigh vacuum of 10 26 mbar at temperatures 710, 800, and 900°C as well as in flowing inert gas (Ar) atmosphere at 1400°C. The results evidenced that liquid Al does not wet ZrB 2 substrate at 710 and 800°C, forming high contact angles (h) of 128°and 120°, respectively. At 900°C, wetting phenomenon (h < 90°) occurs in 29th minute and the contact angle decreases monotonically to the final value of 80°. At 1400°C, wetting takes place immediately after drop deposition with a fast decrease in the contact angle to 76°. The solidified Al/ZrB 2 couples were studied by scanning and transmission electron microscopy coupled with x-ray energy diffraction spectroscopy. Structural characterization revealed that only in the Al/ZrB 2 couple produced at the highest temperature of 1400°C new phases (Al 3 Zr, AlB 2 and a-Al 2 O 3 ) were formed.

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“…6,12 Typically, these structural components are prepared out of ceramic powders, which are mixed with metals or metal silicides to promote sintering and to enhance their functionality. 8,11,[13][14][15][16][17][18][19] Growth and characterization of ZrB 2 thin films are also of interest for potential applications as decorative coatings and diffusion barriers in microelectronics. 20,21 In this letter, we report results from in situ transmission electron microscopy (TEM) studies of thermal stability of ZrB 2 thin films in contact with Pt and Mo.…”

mentioning

confidence: 99%

In situ transmission electron microscopy studies of the kinetics of Pt-Mo alloy diffusion in ZrB2 thin films

Jouanny

Pališaitis

Ngo

et al. 2013

Applied Physics Letters

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Using in situ high-temperature (1073–1173 K) transmission electron microscopy, we investigated the thermal stability of Pt and Mo in contact with polycrystalline ZrB2 thin films deposited on Al2O3(0001). During annealing, we observed the diffusion of cubic-structured Pt1−xMox (with x = 0.2 ± 0.1) along the length of the ZrB2 layer. From the time-dependent increase in diffusion lengths, we determined that the Pt1−xMox does not react with ZrB2, but diffuses along the surface with a constant temperature-dependent velocity. We identify the rate-limiting step controlling the observed phenomenon as the flux of Mo atoms with an associated activation barrier of 3.8 ± 0.5 eV.

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Liquid metal/ceramic interactions in the (Cu, Ag, Au)/ZrB2 systems

Cited by 60 publications

References 42 publications

Tribological study of hot pressed oxide dispersion strengthened 2205 DSS composite

Tribological study of hot pressed oxide dispersion strengthened 2205 DSS composite

Wettability and Reactivity of ZrB2 Substrates with Liquid Al

In situ transmission electron microscopy studies of the kinetics of Pt-Mo alloy diffusion in ZrB2 thin films

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