14 April 2015

Assessment of the Role of Alloying Elements on the Corrosion Behaviour of Ni-Cr-Mo Alloys

The primary goal of this research was to elucidate the key influences of the alloying elements in Ni-Cr-Mo alloys on their electrochemical behaviour. Two alloys, varying in Cr and Mo content, were studied in deaerated 5 M NaCl solutions. As indicated in Figure 1, potentiostatic polarization followed by electrochemical impedance spectroscopy (EIS) (to measure the...
25 March 2015

Research Highlight – Crevice Corrosion of Grade-2 Titanium

Titanium alloys are highly corrosion resistant under oxidizing conditions, but can suffer crevice corrosion at elevated temperatures (>70°C) if the surface is occluded by another material, such as a deposit, a poor weld or a crack. The conditions which develop within a crevice are such that, in the event of the breakdown of the protective...
25 February 2015

Electrochemical Study of Doped Uranium Oxide (UO2) in Slightly Alkaline Sodium Carbonate/Bicarbonate Solutions

This recent research project was designed to investigate the influence of carbonate/bicarbonate, the key groundwater constituents likely to influence fuel dissolution inside a failed nuclear waste disposal container, on the reactivity of different uranium oxide (UO2) specimens. A cyclic voltammetric (CV) study of doped UO2 (Dy-UO2, Gd-UO2, 1.5 at% SIMFUEL and UO2.002) in 0.1 M...
05 February 2015

Electrochemical and Surface Analytical Measurements on Cu-Coated Steel Specimens

The proposed Canadian container for the disposal of spent nuclear fuel consists of a dual wall comprised of an outer shell of copper over an inner low alloy steel vessel. Because of manufacturing and fabrication challenges for thick-walled containers, a thin-walled alternative design is being developed. Their fabrication involves coating copper directly on the surface...
27 January 2015

New EDX Analyzer Installed on FESEM

SSW has recently upgraded the EDX system on our Hitachi S4500 field emission SEM to a Quartz PCI XOne SSD X-ray analyzer. The system consists of a PulseTor Maxim silicon drift detector (SDD) combined with a Quartz Imaging XOne image and EDX capture software. The state-of-the-art detector is electronically cooled and has excellent energy resolution...
19 December 2014

Holiday Season Hours

A quick note for our clients. Surface Science Western will be closed over the holidays starting on Wednesday, December 24th and returning Monday, January 5th (8 am). Season’s greetings to all from the staff at SSW
15 December 2014

Upcoming Rate Increase Announcement

Dear Valued SSW External Clients; It has been a pleasure working with you over the many years. Thank you for making us part of your solution for surface and materials characterization needs. Surface Science Western (SSW), an ancillary unit of Western University, is mandated to run as a self-sustaining business unit. SSW works with Canadian...
03 December 2014

Strong SSW Presence at Interdisciplinary Research Showcase

The results of various research and analyses carried out at Surface Science Western were on display as part of Western Science`s Interdisciplinary Research Showcase held on December 2, 2014. Research findings from SSW staff and students and a variety of groups that utilize SSW facilities were presented. In this past year alone, over 50 faculty...
30 October 2014

Retirement Annoucement

After 27 years with SSW, it is with heavy hearts but warmest wishes that we announce the retirement of Ross Davidson, our Operations Manager, on September 30, 2014. We are indebted to his vision and commitment for propelling us to our present position in this niche industry. His expertise in surface analysis methodology and techniques,...