WORKSHOP ON ACCESS TO NATIONAL FACILITIES FOR MATERIALS RESEARCH
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AUGUST 24 - 27, 2003, VANCOUVER, BRITISH COLUMBIA, CANADA |
On Sunday, August 24th, 2003, a workshop will be held in the Finback room at the Sheraton Vancouver Wall Centre Hotel from 14:00 until 17:00. This workshop is free and open to anyone who would like to attend. The papers that will be discussed are the following:
NEUTRON PROGRAM FOR MATERIALS RESEARCH: INTRODUCTION TO CANADA'S NEUTRON BEAM LABORATORY
A. MCIVOR and K. CONLON, Neutron Program for Materials Research, National Research Council, Chalk River, Ontario
The National Research Council operates the Neutron Program for Materials Research (NPMR), Canada's Neutron Beam Laboratory in Chalk River, Ontario as a national user facility. The lab has a diverse community of users, who apply neutrons in their research into materials of all kinds.
The first part of this presentation will touch on a number of aspects of lab operation: funding partnerships, accessibility, user demographics, the proposal review process and technical support. It is hoped this will provide a rounded view into the successful operation of this major piece of Canadian science infrastructure.
The second part of the presentation will highlight specific applications of neutron beams to structural materials research. Thermal neutrons possess unique physical properties, making them attractive probes of residual stresses and microstructure of materials that are of interest to materials engineers. The penetration depth of a neutron beam exceeds that of conventional x-ray sources by many orders of magnitude. This presentation will draw upon several examples of recent materials research performed using the neutron scattering facilities at Chalk River to characterize novel structural materials and processes, with emphasis on problems that not amenable to other materials characterization techniques.
THE CANADIAN LIGHT SOURCE: A NEW LIGHT TO ANSWER AGE OLD QUESTIONS
D.-T. JIANG, Canadian Light Source Inc., University of Saskatchewan, Saskatoon, SK
With the increasing requirements associated with materials research and development, researchers are demanding access to new and innovative research tools. One such tool is the Canadian Light Source, our national synchrotron facility, located at the University of Saskatchewan. This $180 million scientific facility will give researchers unprecedented access to information previously unimaginable. But as found with many large national facilities, many "nagging" questions of still persist. How and why do I use such a facility and how much will it cost? This talk will address these questions and many other issues raised by current and future users.
ACADEMIC USER ACCESS FACILITY AT CANMET
D. S. WILKINSON, McMaster University, Hamilton, Ontario
E. ESSADIQI, Materials Technology Laboratory, CANMET, Ottawa, Ontario
This presentation will cover the history leading to the recent of award of an NSERC MFA award to create an academic user access facility at the Materials Technology Lab of CANMET. The importance of this to the Canadian materials academic community will be discussed. An overview of the facilities available for access will be provided along with the process by which access will be granted.
APPLICATION OF SYNCHROTRON-BASED TECHNIQUES TO METALLURGY AND MINING
D.-T. JIANG, Canadian Light Source Inc., University of Saskatchewan, Saskatoon, SK
Modern metallurgical research is concerned with the preparation of radioactive metals, with obtaining metals economically from low-grade ores, with obtaining and refining rare metals hitherto not used, and with the formulation of alloys. Low-emittance 3rd generation synchrotron sources produce electromagnetic radiation or x-rays that are typically 1) very brilliant (several orders of magnitude greater than rotating anode, x-ray sources), 2) highly collimated for focusing of intense micro beams and 3) have a broad energy range (<1 keV to >40 keV). The availability of highly collimated, high brilliance x-ray beams over such a broad energy range facilitates high spatial resolution material imaging and spectroscopic and chemical analyses on elements with Z>18 (K- or L-edges), as well as lighter elements, at the ppm level. When applied to the mining/minerals and metallurgical industry, analytical capabilities inherent to synchrotron radiation can be used to delineate slight differences in crystalline structures, provide an understanding of surface properties in an effort to increase the effectiveness and efficiency of metallurgical retrieval and separation and characterize deformation strain and fatigue in metallic components as a result of mechanical stress during manufacture and lifetime operation.
CASE STUDIES IN MAJOR FACILITIES ACCESS: NEUTRON SCATTERING AND X-RAY TOMOGRAPHY
D.S. WILKINSON, G. QUAN and J. GAMMAGE, McMaster University, Hamilton, Ontario
E. MARIE, Institut National des Sciences Appliques Lyon, Villeurbanne, France
We have benefited immeasurably over the past few years from access to facilities providing both neutrons (CNBL, Chalk River) and intense x-rays (ESRF, Grenoble). At CNBL we have used neutron diffraction to study the network stresses in a SiC whisker reinforced alumina, while at the ESRF synchrotron we have used x-ray tomography to visualize damage in metal matrix composites. In both cases the results we have obtained provide important new insights. They also offer unique training opportunities for students.
PILOT SCALE PROCESSING OF ADVANCED STEELS AT MTL
D. BOYD, Dept. of Mechanical Engineering, Queen's University, Kingston, ON,
E. ESSADIQI, Materials Technology Laboratory, CANMET, Ottawa and
S. YUE, Dept. of Metals and Materials Engineering, McGill University, Montreal
The unique capabilities of the MTL metal processing facilities will be illustrated with reference to 2 university-based research projects:
- Development of plate steels having high strength and high toughness based on bainitic microstructures,
- Development of multiphase steels having high strength and high energy absorption based on strain-induced transformation of retained austenite.
Both projects investigated the interactions between steel composition, thermomechanical processing, microstructure and mechanical properties. Pilot-scale processing was required to explore all of these factors in a unified study.
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Technical Program