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Smart Composite Biomaterials TiAIV/AI2O3/TiNi

Published online by Cambridge University Press:  10 February 2011

Peter Filip ,
Jaroslav Musialek ,
Albert C. Kneissl  and
Karel Mazanec
Peter Filip
Affiliation:
Technical University of Ostrava, Institute of Materials Engineering, CZ-708 33 Ostrava-Poruba, Czech Republic
Jaroslav Musialek
Affiliation:
Municipal Hospital Ostrava-Fifejdy, Orthopedic Clinic, Nemocnicni 20, CZ-728 80 Ostrava-Fifejdy, Czech Republic
Albert C. Kneissl
Affiliation:
University of Leoben, Institute of Physical Metallurgy and Materials Testing, A-8700 Leoben, Austria.
Karel Mazanec
Affiliation:
Technical University of Ostrava, Institute of Materials Engineering, CZ-708 33 Ostrava-Poruba, Czech Republic
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Abstract

The TiNi shape memory alloy wires were plasma coated by α-Al2O3 ceramics and afterwards they were cast into Ti6Al4V or Ti6Al1.5V2.5Nb (Ti-alloy) matrix. The wire fibers melt and the alumina ceramics reacts with both TiNi and Ti-alloy if cooling rate is small. The interphases which are formed are Ti2(Al, Ni) and Ti3AL-type phases, respectively. The structure of TiNi wires changes to dendritic one, Ti-alloys contain 10 to 15% of primary α and transformed β phase. The optimal conditions for rolling are 900°C with reductions of 5%. At this conditions all the constituents of composite material can be deformed plastically. The adhesive strength of TiNi/Al2O3 is 60 MPa.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 459: Symposium Y – Materials for Smart Systems II , 1996 , 577
Copyright
Copyright © Materials Research Society 1997

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References

REFERENCES

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