Neitzert, TBagshaw, PScholz, W2012-04-182012-04-18200820084th New Zealand Metals Industry Conference, Auckland, New Zealandhttps://hdl.handle.net/10292/3862No abstractNOTICE: this is the author’s version of a work that was accepted for publication. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication.Conference ContributionOpenAccess