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The wetting of alumina by copper alloyed with titanium and other elements
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In this article, the authors investigated the wettability of alumina by ternary alloys of copper, titanium and aluminium, gallium gold, indium, nickel or silver.Abstract:
The wettability of alumina by ternary alloys of copper, titanium and aluminium, gallium gold, indium, nickel or silver has been investigated using sessile drop tests conducted in vacuum at 1050–1250° C. Substantial additions of titanium are known to induce copper to wet alumina due to the formation of a titanium rich reaction product at the alloy/ ceramic interface, but the present work has shown that the concentration of titanium can be reduced by the addition of ternary alloying elements. Additions of indium are very beneficial, of aluminium, gold or silver are moderately beneficial, and of gallium or nickel are of negligible benefit or detrimental. These observations, and previous work with copper-tin-titanium alloys [1] can be interpreted in terms of effects on the activity of titanium which it is argued will be enhanced if the ternary alloying element has a low surface energy and is readily saturated by titanium. The correlation of the experimental wetting observations with the surface energy and titanium solubility data for the ternary alloying elements provides a basis for the rational development of reactive metal brazes for joining unmetallized ceramics.read more
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The challenge of ceramic/metal microcomposites and nanocomposites
TL;DR: In this paper, the exotic effects of metal particles embedded into matrix ceramics due to the dissimilar properties of the components, percolation laws, and the nature of the interfaces are discussed.
Journal ArticleDOI
Impurity and alloying effects on interfacial reaction layers in Pb-free soldering
TL;DR: In this article, the effect of minor alloying and impurity elements, typically present in electronics manufacturing environment, on the interfacial reactions between Sn and Cu, which is the base system for Pb-free soldering is analyzed.
Journal ArticleDOI
Wettability of SiC by aluminium and Al-Si alloys
TL;DR: In this article, the variations with time of the contact angle formed by molten pure aluminium or Al-Si alloys with single crystalline SiC were measured by the sessile drop method in a vacuum of 10−4 to 10−5 Pa at temperatures ranging from 933 to 1200 K.
Journal ArticleDOI
Bonding, structure, and properties of metal/ceramic interfaces: Part 1 Chemical bonding, chemical reaction, and interfacial structure
TL;DR: In this paper, the authors reviewed chemical bonding, chemical reaction, and the interfacial structure of metal/ceramic interfaces with particular emphasis placed on Al and Ti alloys bonded to Al2O3 and SiC ceramics.
Journal ArticleDOI
Silicon carbide fibres and their potential for use in composite materials. Part 1
C.-H. Andersson,Richard Warren +1 more
TL;DR: In this article, the chemical properties of silicon carbide fibres relevant to the use of SiC fibres as a reinforcement in metal matrix composite materials are reviewed, with particular attention paid to the oxidation properties and interaction with metals and alloys with respect to chemical interactions and fibre/matrix bonding.
References
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Book
CRC Handbook of Chemistry and Physics
TL;DR: CRC handbook of chemistry and physics, CRC Handbook of Chemistry and Physics, CRC handbook as discussed by the authors, CRC Handbook for Chemistry and Physiology, CRC Handbook for Physics,
Book
Physical chemistry of melts in metallurgy
TL;DR: A detailed survey of the chemistry of melts in metallurgy can be found in this article, with a focus on mass transfer involving drops and bubbles in reactions between metals and gases and metals and slags.
Journal ArticleDOI
The wetting of alumina and vitreous carbon by copper-tin-titanium alloys
R. Standing,M. Nicholas +1 more
TL;DR: In this paper, the wetting behavior of copper-rich copper-tin-titanium alloys on alumina and vitreous carbon substrates was determined using the sessile drop technique.