Joining of alumina by vacuum brazing

L.S.K. Heikinheimo, M. Siren, P. Kauppinen

Research output: Book/ReportReportAcademic

Abstract

The joinability of alumina to titanium and Ni-superalloys has been studied by wetting expts., nondestructive testing (NDT), and shear strength measurements. The spreading of the braze is affected not only by the surface conditions of mating materials but also by the type of brazing alloy. The Ag-Cu-base alloys give better wetting, strength and leak-tightness properties than the Ag-base alloys. A shear test method has been developed for the mech. testing of metal-ceramic joints. However, the sample geometry affects the measured values, namely a smaller specimen size provides better results. The correlation between the C-SAM results, which describe the ratio between the true bonded area and unbonded area, and measured shear strength values is presented. [on SciFinder (R)]
Original languageEnglish
Place of PublicationEindhoven
PublisherTechnische Universiteit Eindhoven
Number of pages49
Publication statusPublished - 1993

Publication series

NameVTT Tied

Fingerprint

brazing
aluminum oxides
shear strength
vacuum
wetting
tightness
heat resistant alloys
titanium
ceramics
shear
geometry
metals

Cite this

Heikinheimo, L. S. K., Siren, M., & Kauppinen, P. (1993). Joining of alumina by vacuum brazing. (VTT Tied). Eindhoven: Technische Universiteit Eindhoven.
Heikinheimo, L.S.K. ; Siren, M. ; Kauppinen, P. / Joining of alumina by vacuum brazing. Eindhoven : Technische Universiteit Eindhoven, 1993. 49 p. (VTT Tied).
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Heikinheimo, LSK, Siren, M & Kauppinen, P 1993, Joining of alumina by vacuum brazing. VTT Tied, Technische Universiteit Eindhoven, Eindhoven.

Joining of alumina by vacuum brazing. / Heikinheimo, L.S.K.; Siren, M.; Kauppinen, P.

Eindhoven : Technische Universiteit Eindhoven, 1993. 49 p. (VTT Tied).

Research output: Book/ReportReportAcademic

TY - BOOK

T1 - Joining of alumina by vacuum brazing

AU - Heikinheimo, L.S.K.

AU - Siren, M.

AU - Kauppinen, P.

PY - 1993

Y1 - 1993

N2 - The joinability of alumina to titanium and Ni-superalloys has been studied by wetting expts., nondestructive testing (NDT), and shear strength measurements. The spreading of the braze is affected not only by the surface conditions of mating materials but also by the type of brazing alloy. The Ag-Cu-base alloys give better wetting, strength and leak-tightness properties than the Ag-base alloys. A shear test method has been developed for the mech. testing of metal-ceramic joints. However, the sample geometry affects the measured values, namely a smaller specimen size provides better results. The correlation between the C-SAM results, which describe the ratio between the true bonded area and unbonded area, and measured shear strength values is presented. [on SciFinder (R)]

AB - The joinability of alumina to titanium and Ni-superalloys has been studied by wetting expts., nondestructive testing (NDT), and shear strength measurements. The spreading of the braze is affected not only by the surface conditions of mating materials but also by the type of brazing alloy. The Ag-Cu-base alloys give better wetting, strength and leak-tightness properties than the Ag-base alloys. A shear test method has been developed for the mech. testing of metal-ceramic joints. However, the sample geometry affects the measured values, namely a smaller specimen size provides better results. The correlation between the C-SAM results, which describe the ratio between the true bonded area and unbonded area, and measured shear strength values is presented. [on SciFinder (R)]

M3 - Report

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BT - Joining of alumina by vacuum brazing

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CY - Eindhoven

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Heikinheimo LSK, Siren M, Kauppinen P. Joining of alumina by vacuum brazing. Eindhoven: Technische Universiteit Eindhoven, 1993. 49 p. (VTT Tied).