Characterisation of Interfaces between Liquid Tin and Alumina in the Presence of Titanium Alloy Additions

B. Derby; S. Holt

doi:10.1023/B:INTS.0000012292.19049.e2

Characterisation of Interfaces between Liquid Tin and Alumina in the Presence of Titanium Alloy Additions

Research output: Contribution to journal › Article › peer-review

Abstract

Neutron reflection spectroscopy has been used to characterise the composition of interfaces between liquid Sn-Ti alloys and Al2O 3. The reflectivity profiles for both 1% and 3% Ti alloys are consistent with the presence of a layer approximately 2 nm thick at the liquid/solid interface, showing extensive segregation of Ti. The composition of this layer is not pure Ti but shows a greater Ti content than any known Ti oxide composition. In all interfaces exposed to liquid metals at elevated temperature (including pure Sn) there is a layer of thickness 20-100 nm on the alumina surface with slightly lower neutron scattering length density than pure alumina. This is interpreted as evidence for surface roughening of the Al 2O3 surface during exposure to the liquid metal.

Original language	English
Pages (from-to)	29-37
Number of pages	8
Journal	Interface Science
Volume	12
Issue number	1
DOIs	https://doi.org/10.1023/B:INTS.0000012292.19049.e2
Publication status	Published - Jan 2004

Keywords

Active metal brazes
Metal-ceramic interfaces
Neutron reflection spectroscopy
Wetting

Access to Document

10.1023/B:INTS.0000012292.19049.e2

Cite this

@article{4b72bf689b23493dad74a3b89cf1360d,

title = "Characterisation of Interfaces between Liquid Tin and Alumina in the Presence of Titanium Alloy Additions",

abstract = "Neutron reflection spectroscopy has been used to characterise the composition of interfaces between liquid Sn-Ti alloys and Al2O 3. The reflectivity profiles for both 1% and 3% Ti alloys are consistent with the presence of a layer approximately 2 nm thick at the liquid/solid interface, showing extensive segregation of Ti. The composition of this layer is not pure Ti but shows a greater Ti content than any known Ti oxide composition. In all interfaces exposed to liquid metals at elevated temperature (including pure Sn) there is a layer of thickness 20-100 nm on the alumina surface with slightly lower neutron scattering length density than pure alumina. This is interpreted as evidence for surface roughening of the Al 2O3 surface during exposure to the liquid metal.",

keywords = "Active metal brazes, Metal-ceramic interfaces, Neutron reflection spectroscopy, Wetting",

author = "B. Derby and S. Holt",

year = "2004",

month = jan,

doi = "10.1023/B:INTS.0000012292.19049.e2",

language = "English",

volume = "12",

pages = "29--37",

journal = "Interface Science",

issn = "1573-2746",

publisher = "Kluwer Academic Publishers",

number = "1",

}

TY - JOUR

T1 - Characterisation of Interfaces between Liquid Tin and Alumina in the Presence of Titanium Alloy Additions

AU - Derby, B.

AU - Holt, S.

PY - 2004/1

Y1 - 2004/1

N2 - Neutron reflection spectroscopy has been used to characterise the composition of interfaces between liquid Sn-Ti alloys and Al2O 3. The reflectivity profiles for both 1% and 3% Ti alloys are consistent with the presence of a layer approximately 2 nm thick at the liquid/solid interface, showing extensive segregation of Ti. The composition of this layer is not pure Ti but shows a greater Ti content than any known Ti oxide composition. In all interfaces exposed to liquid metals at elevated temperature (including pure Sn) there is a layer of thickness 20-100 nm on the alumina surface with slightly lower neutron scattering length density than pure alumina. This is interpreted as evidence for surface roughening of the Al 2O3 surface during exposure to the liquid metal.

AB - Neutron reflection spectroscopy has been used to characterise the composition of interfaces between liquid Sn-Ti alloys and Al2O 3. The reflectivity profiles for both 1% and 3% Ti alloys are consistent with the presence of a layer approximately 2 nm thick at the liquid/solid interface, showing extensive segregation of Ti. The composition of this layer is not pure Ti but shows a greater Ti content than any known Ti oxide composition. In all interfaces exposed to liquid metals at elevated temperature (including pure Sn) there is a layer of thickness 20-100 nm on the alumina surface with slightly lower neutron scattering length density than pure alumina. This is interpreted as evidence for surface roughening of the Al 2O3 surface during exposure to the liquid metal.

KW - Active metal brazes

KW - Metal-ceramic interfaces

KW - Neutron reflection spectroscopy

KW - Wetting

U2 - 10.1023/B:INTS.0000012292.19049.e2

DO - 10.1023/B:INTS.0000012292.19049.e2

M3 - Article

SN - 1573-2746

VL - 12

SP - 29

EP - 37

JO - Interface Science

JF - Interface Science

IS - 1

ER -

Characterisation of Interfaces between Liquid Tin and Alumina in the Presence of Titanium Alloy Additions

Abstract

Keywords

Access to Document

Fingerprint

Cite this