7 Result(s)
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Article
Wettability of SiC and graphite by Co–Ta alloys: evaluation of the reactivity supported by thermodynamic calculations
Within the context of the design of high-temperature brazing process for C and SiC-based composites, a basic study is presented here about the wetting and interfacial reactivity of Co–Ta alloys in contact with...
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Article
Thermophysical properties of some Ni-based superalloys in the liquid state relevant for solidification processing
The thermophysical properties, e.g., melting range, specific heat, solid fraction, density, and surface tension of four industrial Ni-based alloys, namely MC-2, CMSX-10, TMS-75, and LEK-94, have been determine...
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Article
Isothermal solid–liquid transitions in the (Ni,B)/ZrB2 system as revealed by sessile drop experiments
In the framework of joining processes of ultrahigh temperature ceramics (UHTCs), sessile drop experiments were performed in the Ni–B/ZrB2 system in the range 1110° ≤ T ≤ 1200 °C. They show that, at temperatures b...
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Article
SiC/SiC and SiC/Kovar joining by Ni–Si and Mo interlayers
A composite joining technique, using a Ni–56Si filler alloy and Mo as interlayers, was used to join SiC to SiC and to Kovar. The wetting of the Ni–Si alloy on SiC ceramic was studied in a vacuum at 1,350 °C by...
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Article
Ab initio simulations of the Ag(111)/Al2O3 interface at intermediate oxygen partial pressures
The relative stability of different realizations of the Ag(111)/Alumina interfaces with varying oxygen partial pressures is investigated by means of ab initio density functional theory (DFT) simulations. Previ...
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Article
Wetting and interactions of Ni- and Co-based superalloys with different ceramic materials
In this work, a systematic study of the wetting behavior of two Ni-based and one Co-based superalloys, used, in particular, for the fabrication of turbine blades, is presented with reference to different ceram...
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Article
Wetting and interfacial behavior of Ni–Si alloy on different substrates
Wetting of molten Ni–56 at.% Si alloy on different substrates (SiC ceramic, Ni- and Co-based superalloys, Kovar, and Mo) are performed under different experimental conditions by the sessile drop technique. Tem...
