Partner Investigators  
 
Emeritus Professor J. David Embury
 
  • BE (Metallurgy), University of Manchester, 1963
• PhD (Metallurgy), Cambridge University, 1965
 
Materials Science and Engineering
 
  McMaster University, 1280 Main Street West
Hamilton, Ontario, Canada, L8S 4L7
Tel: +1 (905) 525-9140 Fax: +1 (905) 528-9295
Email: emburyd@mcmaster.ca
 
Research interests
 
Deformation and fracture of metallic and composite materials, applications of electron microscopy to materials science, processing of metal matrix composites. Ultra high strength materials, multilayer structures. Current research includes:
 
•
Fabrication of microscale components with laminates of order 5 nm spacing and the determination of flow mechanisms and phase transitions in these materials.
•
Study of yielding in strong materials (intermetallics and ceramics) using microindentation and electron microscopes.
•
Pressure dependent flow and fracture in a variety of materials including metals, metal matrix composites and intermetallic composites. Modelling using detailed micromechanical models and processing methods.
•
Brittle fracture and its dependence on stress state and local chemistry. The experimental work involves mechanical testing, analytical electron microscopy and surface analysis, and is currently being applied to low C sheet steels.
•
Formability of Al alloys and multiphase steels.
 
Selected publications
 
1. Niewcza M, Engler, O, Embury JD, “The recrystallization of copper single crystals deformed at 4.2K”, Acta Materialia, 52 (3): 539-552, Feb 9 2004.
2. Embury JD, Deschamps A, Brechet Y, “The interaction of plasticity and diffusion controlled precipitation reactions”, Scripta Materialia, 49 (10): 927-932, Nov 2003.
3. Embury JD, Sinclair CW, “The mechanical properties of fine-scale two-phase materials”, Materials Science and Engineering A, 319: 37-44 Sp. Iss. SI Dec 2001.
4. Han K, Hirth JP, Embury JD, “Modelling the formation of twins and stacking faults in the Ag-Cu system”, Acta Materialia, 49 (9): 1537-1540, May 25 2001.
5. Deschamps A, Niewczas M, Bley F, Brechet Y, Embury JD, Le Sinq L, Livet F, Simon JP, “Low-temperature dynamic precipitation in a supersaturated Al-Zn-Mg alloy and related strain hardening:, Philosophical Magazine A, 79 (10): 2485-2504, Oct 1999.
6. Gharghouri MA, Weatherly GC, Embury JD, Root J, “Study of the mechanical properties of Mg-7.7at.% Al by in-situ neutron diffraction”, Philosophical Magazine A, 79 (7): 1671-1695, Jul 1999.
7. Gharghouri MA, Weatherly GC, Embury JD, “The interaction of twins and precipitates in a Mg-7.7 at.% Al alloy”, Philosophical Magazine A, 78 (5): 1137-11449, Nov 1998.
8. Maire E, Wilkinson DS, Embury JD, Fourgeres R, “Role of damage on the flow and fracture of particulate reinforced alloys and metal matrix composites”, Acta Materialia, 45 (12): 5261-5274, Dec 1997.
9. Wilkinson DS, Maire E, Embury JD, “The role of heterogeneity on the flow and fracture of two-phase materials”, Materials Science and Engineering A, 233 (1-2_: 145-154, Aug 15 1997.
10. Pool WJ, Lloyd DJ, Embury JD, “The effect of natural ageing on the evolution of yield strength during artificial ageing for Al-Mg-Si-Cu alloys”, Materials Science and Engineering A, 234: 306-309, Aug 30 1997.
 
 
David is a member of the Centre Advisory Board and the International Technical Advisory Committee