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Adhesive bonding of super‐elastic titanium–nickel alloy castings with a phosphate metal conditioner and an acrylic adhesive
Author(s) -
Matsumura H.,
Tanoue N.,
Yanagida H.,
Atsuta M.,
Koike M.,
Yoneyama T.
Publication year - 2003
Publication title -
journal of oral rehabilitation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.991
H-Index - 93
eISSN - 1365-2842
pISSN - 0305-182X
DOI - 10.1046/j.1365-2842.2003.01112.x
Subject(s) - materials science , adhesive , nickel , alloy , bond strength , titanium , composite material , metallurgy , nickel titanium , metal , casting , shape memory alloy , layer (electronics)
summary The purpose of the current study was to evaluate the bonding characteristics of super‐elastic titanium–nickel (Ti–Ni) alloy castings. Disk specimens were cast from a Ti–Ni alloy (Ti‐50·85Ni mol%) using an arc centrifugal casting machine. High‐purity titanium and nickel specimens were also prepared as experimental references. The specimens were air‐abraded with alumina, and bonded with an adhesive resin (Super‐Bond C & B). A metal conditioner containing a phosphate monomer (Cesead II Opaque Primer) was also used for priming the specimens. Post‐thermocycling average bond strengths (MPa) of the primed groups were 41·5 for Ti–Ni, 30·4 for Ti and 19·5 for Ni, whereas those of the unprimed groups were 21·6 for Ti, 19·3 for Ti–Ni and 9·3 for Ni. Application of the phosphate conditioner elevated the bond strengths of all alloy/metals ( P < 0·05). X‐ray fluorescence analysis revealed that nickel was attached to the debonded resin surface of the resin‐to‐nickel bonded specimen, indicating that corrosion of high‐purity nickel occurred at the resin–nickel interface. Durable bonding to super‐elastic Ti–Ni alloy castings can be achieved with a combination of a phosphate metal conditioner and a tri‐ n ‐butylborane‐initiated adhesive resin.