Cryogenic and room temperature strength of sapphire jointed by hydroxide-catalysis bonding

Douglas, R., van Veggel, A.A. , Cunningham, L. , Haughian, K., Hough, J. and Rowan, S. (2014) Cryogenic and room temperature strength of sapphire jointed by hydroxide-catalysis bonding. Classical and Quantum Gravity, 31(4), Art. 045001. (doi:10.1088/0264-9381/31/4/045001)

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Abstract

Hydroxide-catalysis bonding is a precision technique used for jointing components in opto-mechanical systems and has been implemented in the construction of quasi-monolithic silica suspensions in gravitational wave detectors. Future detectors are likely to operate at cryogenic temperatures which will lead to a change in test mass and suspension material. One candidate material is mono-crystalline sapphire. Here results are presented showing the influence of various bonding solutions on the strength of the hydroxide-catalysis bonds formed between sapphire samples, measured both at room temperature and at 77 K, and it is demonstrated that sodium silicate solution is the most promising in terms of strength, producing bonds with a mean strength of 63 MPa. In addition the results show that the strengths of bonds were undiminished when tested at cryogenic temperatures.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:van Veggel, Dr Marielle and Douglas, Miss Rebecca and Rowan, Professor Sheila and Cunningham, Dr Liam and Hough, Professor James and Haughian, Dr Karen
Authors: Douglas, R., van Veggel, A.A., Cunningham, L., Haughian, K., Hough, J., and Rowan, S.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Classical and Quantum Gravity
Publisher:Institute of Physics Publishing Ltd.
ISSN:0264-9381
ISSN (Online):1361-6382
Copyright Holders:Copyright © 2014 The Authors
First Published:First published in Classical and Quantum Gravity 31(4):045001
Publisher Policy:Reproduced under a Creative Commons License

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
624341Investigations in Gravitational RadiationSheila RowanScience & Technologies Facilities Council (STFC)ST/L000946/1S&E P&A - PHYSICS & ASTRONOMY
459311Investigations in Gravitational Radiation.Sheila RowanScience & Technologies Facilities Council (STFC)PP/F001118/1P&A - PHYSICS & ASTRONOMY
459313Investigations in Gravitational Radiation.Sheila RowanScience & Technologies Facilities Council (STFC)ST/J000361/1P&A - PHYSICS & ASTRONOMY