Effect of oxygen on segregation and chemical activity of titanium in silver-copper brazing alloys

J. Kivilahti, F.J.J. Loo, van

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

Abstract

Thermodn. of Ti-O interaction in the Ti-Al2O3 diffusion couples and in liq. Ag-Cu alloys were studied. In spite of strong Ti-O interaction in the Ti-Al2O3 diffusion couples Ti-oxides are not formed due to dissolved aluminum. Results indicate that there is a large liq. miscibility gap in the Ag-Cu-Ti system, which divides the liq. into high-Ti and low-Ti, high Ag solns. In Ag-rich Ag-Cu-Ti alloys a-Ti[O] or lower Ti-oxides may form due to high oxygen and Ti activities. Several other phase equil. and the isoactivities of dissolved Ti and O in both systems are presented. The present thermodn. description gives a good basis for further studies on chem. interactions in diffusion bonded or in brazed oxide-metals joints. [on SciFinder (R)]
Original languageEnglish
Title of host publicationIntergranular and interphase boundaries in materials : proceedings of the 6th International Congress, Thessaloniki, Greece, June 21 - 26, 1992
Place of PublicationAedermannsdorf
PublisherTrans Tech Publications
Pages209-212
ISBN (Print)0-87849-660-2
DOIs
Publication statusPublished - 1993
Eventconference; International Congress on Intergranular and Interphase Boundaries in Materials (IIB) ; 6 (Thessaloniki) : 1992.06.21-26 -
Duration: 1 Jan 1993 → …

Publication series

NameMaterials Science Forum
Volume126-128
ISSN (Print)0255-5476

Conference

Conferenceconference; International Congress on Intergranular and Interphase Boundaries in Materials (IIB) ; 6 (Thessaloniki) : 1992.06.21-26
Period1/01/93 → …
OtherInternational Congress on Intergranular and Interphase Boundaries in Materials (IIB) ; 6 (Thessaloniki) : 1992.06.21-26

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