The purpose of this workshop is to explore the physical principles governing microstructure stability in extreme environments, such as high radiation fields and high temperature. Our goal is to develop a scientific and technical framework to facilitate the design of materials that exhibit high radiation, temperature, and corrosion resistance.

The researchers hosting this workshop are particularly interested in the development of radiation stable advanced nuclear fuels. However, for the purposes of this workshop, our objective is to assemble a broader range of experts in nuclear materials R&D, as well as leading authorities on general issues relating to materials performance under extreme conditions. We will examine universally the scientific and technical issues associated with microstructural stability in extreme environments. We will evaluate what drives microstructural evolution and explore how complex microstructures (multi-phasic, nano-structured, etc.) may be used to arrest spatial and temporal changes in structure.

The workshop will highlight a variety of plenary lectures by invited specialists on topics including:

• Fundamentals of radiation stability (swelling resistance, etc.)
• Fundamentals of thermal stability (grain growth, etc.)
• Fundamentals of corrosion resistance
• Fundamentals of high temperature creep resistance
• Complex composite microstructures
• Design of stable nanostructures
• Interaction between interfaces and point defects
• Interfacial segregation - pros and cons
• Grain boundary diffusion, sliding
• Defect, phase nucleation at interfaces
• Relationships between thermodynamics and microstructure stability
• High-temperature and radiation-induced phase transformations
• Transmutation-induced compositional evolution
• Creep resistance by microstructural design
• Swelling resistance by microstructural design

This workshop has the following sponsors:

• a United Kingdom EPSRC Grant entitled "Multiscale modelling and experimental investigation of radiation effects in oxides and heavy metals" (Grant coordinators: Prof. Roger Smith, Loughborough University, and Prof. Robin Grimes, Imperial College)
• the Computational Materials Science Network (CMSN) which is funded by the DOE Office of Basic Energy Sciences (OBES)
• Los Alamos National Laboratory (LANL); and
• the Seaborg Institute at LANL

There will be no registration fee.

Registration is now closed. Thank you for all who registered and for those that were unable to register, we apologize for any inconvenience, but we have reached our capacity.

The Radiation Stability of Complex Microstructures workshop will take place at the Hilton of Santa Fe.

Santa Fe is located in Northern New Mexico, an hour's drive north of Albuquerque, the state's largest city and major airport. The Albuquerque International Sunport is serviced by all of the major U.S. airlines. Santa Fe municipal airport is serviced by a commuter airlines connection as well as being open to private aircraft. Train service provides access to New Mexico on a daily basis as does the bus. Flying into Albuquerque and renting a car is the most popular way of traveling around New Mexico. Shuttle service is available from the Albuquerque airport, the Santa Fe airport and the train station which is located in Lamy, New Mexico, about 20 miles from Santa Fe.

Once in Santa Fe there is a local taxi service, public transportation system - Santa Fe Trails and charter vans. Downtown Santa Fe and the surrounding historic districts are compact and most conveniently traveled on foot. Rental cars can also be picked up in Santa Fe.

Transportation from Albuquerque to Santa Fe

Sandia Shuttle 505-474-5696
www.sandiashuttle.com
Open 7 days a week
8:00 a.m. - 8:00 p.m.
Leaves Albuquerque every hour beginning at 8:45 a.m.
Reservations and pre-payment with credit card required
Cost:
$23.00 one-way
$43.00 round-trip
Stops at all hotels

Further Information about Santa Fe

The dress code for the workshop is casual.

The workshop will be held at the Hilton of Santa Fe. The block of rooms is no longer available, but rooms may still be available at the hotel at their normal rates. All public areas have been designated non-smoking as well as most of the guest rooms. Rooms specially designed for the comfort of guests with disabilities are also available.

Name	Affiliation	Topic
Robert Averback	University of Illinois	irradiation induced self organization in complex alloys and rad. tolerance of micro/nano structures
Michel Barsoum	Drexel University	mechanical properties under compression (compressive creep)
Jim Belak	Lawrence Livermore National Laboratory	phase-field modeling of irradiation effects and microstructural evolution
Alfredo Caro	Lawrence Livermore National Laboratory	phase stability in metallic alloy systems
Michael Demkowicz	Los Alamos National Laboratory	simulation of interfacial effects on radiation damage evolution/tolerance (MD, chemical rate theory, etc.)
Anter El-Azab	Florida State University	phase field modeling of fission-gas bubble formation in nuclear fuels
Roy Faulkner	Loughborough University	experiment & theory of microstructures in Fe alloys and steels
Fei Gao	Pacific Northwest National Laboratory	nanocrystalline materials and interactions between point defects and interfaces
Nasr Ghoniem	University of California at Los Angeles	dislocation formation and microstructural evolution in complex structures (multilayers, etc.)
Robin Grimes	Imperial College	interfacial segregation: implications for microstructural stability
Malcolm Heggie	University of Sussex	formation of complex microstructures in graphite
Gerard Hofman	Argonne National Laboratory	dispersion nuclear fuels
Hanchen Huang	Rensselaer Polytechnic Institute	radiation damage evolution in small-grained microstructures
Steven Kenny	Loughborough University	radiation effects at grain boundaries
Digby Macdonald	Penn State University	fundamentals of corrosion
Lou Mansur	Oak Ridge National Laboratory	fundamentals of void swelling
Amit Misra	Los Alamos National Laboratory	nanolayer composites, mechanical and radiation damage properties
Bob Odette	University of California at Santa Barbara	radiation effects in oxide dispersion strengthened (ODS) steels
Simon Phillpot	University of Florida	the role of microstructure and defects on thermal transport in UO2 and related materials
Rishi Raj	University of Colorado	properties and behavior of polymer-derived ceramics (PDCs)
Jeff Rest	Argonne National Laboratory	fission gas-bubble induced swelling of nuclear fuels
Ian Robertson	University of Illinois	microstructural evolution under irradiation
Tony Rollett	Carnegie Mellon University	microstructural evolution based on fundamental interfacial properties
Vincenzo Rondinella	Institute for Transuranium Elements, Karlsruhe	properties and irradiation behavior of nuclear fuels
Lasar Shvindlerman	Institut für Metallkunde und Metallphysik, RWTH Aachen	grain boundary migration, grain growth, diffusion and segregation
Lance Snead	Oak Ridge National Laboratory	thermal conductivity degradation mechanisms in irradiated materials
Roger Stoller	Oak Ridge National Laboratory	atomistic simulations of primary radiation damage production
Dmitry Terentyev	Studiecentrum voor Kernenergie, Centre d'Etude de l'Energie Nucléaire, Belgium	microstructure evolution in Fe-Cr alloys under irradiation
Gary Was	University of Michigan	radiation-driven kinetic processes and high temperature corrosion
Wolfgang Windl	Ohio State University	interfaces in semiconductors and ceramics and radiation damage
Brian Wirth	University of California -- Berkeley	irradiation hardening, cluster formation and void swelling
Thierry Wiss	Institute for Transuranium Elements, Karlsruhe	defect formation and evolution in nuclear fuels and analogues
Kazuhiro Yasuda	University of Kyushu	oxygen diffusion and aggregation in irradiated ZrO2, UO2 and related oxides
Steve Zinkle	Oak Ridge National Laboratory	general overview of microstructural evolution under irradiation

Tentative Complex Microstructures Workshop Program

Time	Speaker	Topic
Tues. Sept. 2 Morning	Microstructural Evolution Under Irradiation - Introduction Chair: R. Grimes
7:15 AM	BREAKFAST; Location: Promenade
8:00-8:15 AM	K. Sickafus	Opening Remarks
8:15-8:45 AM	S. Zinkle	Overview of Microstructural Evolution in Irradiated Materials
8:45-9:15 AM	I. Robertson	Dislocation Interactions with Irradiation Produced Defects: an In Situ TEM Deformation Study
9:15-9:45 AM	J. Belak	Phase-field Modeling of Irradiated Metallic Fuels
9:45-10:15 AM	BREAK; Location: Promenade
10:15-10:45 AM	R. Stoller	Primary Damage Production: Review of Atomistic Simulations
10:45-11:15 AM	B. Wirth	Atomistic Simulations of Dislocation-Obstacle Interactions and Irradiation-Induced Hardening
11:15-11:45 AM	L. Mansur	Void Swelling in Metals and Alloys
11:45 AM -1:30 PM	LUNCH; Location: Promenade
Tues. Sept. 2 Afternoon	Defects & Interfaces I Chair: R. Smith
1:30-2:00 PM	T. Rollett	Interfacial Design
2:00-2:30 PM	N. Ghoniem	Dislocation-Based Models of Deformation and Fracture of Structural Materials in Nuclear Environments
2:30-3:00 PM	F. Gao	Role of Grain Boundaries on Defect Creation and Defect Processes
3:00-3:30 PM	BREAK; Location: Promenade
3:30-4:00 PM	S. Kenny	Modeling Radiation Damage at Grain Boundaries
4:00-4:30 PM	H. Huang	Atomistic Simulations of Radiation Damage in Polycrystalline Materials
4:30-5:00 PM	A. Misra	Radiation Damage Tolerance of Metallic Nanolaminate Composites
6:00-10:00 PM	BAR-BQ, BEVERAGES & INFORMAL DISCUSSIONS; Location: Home of Kurt Sickafus
Time	Speaker	Topic
Wed. Sept. 3 Morning	Interfaces II & Materials Properties Chair: B. Uberuaga
7:15 AM	BREAKFAST; Location: Promenade
8:00-8:30 AM	M. Demkowicz	Are All Interfaces equally Effective as Defect Sinks?
8:30-9:00 AM	R. Grimes	Predicted Changes to Alkali Concentration Adjacent to Glass-Crystal Interfaces
9:00-9:30 AM	M. Barsoum	On the Compressive Creep of Solids
9:30-10:00 AM	BREAK; Location: Promenade
10:00-10:30 AM	L. Snead	Thermal Transport in Defected Graphite and Ceramics
10:30-10:45 AM	M. Bourke	MaRIE: A Vision for a Unique In Situ Characterization Facility
10:45-11:30 AM	Poster Session	See Abstract Book
11:30 AM -1:30 PM	LUNCH; Location: Promenade
Wed. Sept. 3 Afternoon	Metals & Alloys S. Kenny
1:30-2:00 PM	R. Faulkner	Microstructural Control in Steels for Nuclear Applications
2:00-2:30 PM	D. Terentyev	Radiation Damage in Fe-Cr Alloys for Nuclear Applications
2:30-3:00 PM	R. Odette	Recent Developments in Irradiation Resistant Steels
3:00-3:30 PM	BREAK; Location: Promenade
3:30-4:00 PM	A. Caro	Phase Stability Under Irradiation: the Case of FeCr Steels
4:00-4:30 PM	G. Was	Irradiation Driven Corrosion and Stress Corrosion Cracking
4:30-5:00 PM	R. Averback	Stability of Dilute Nanocrystalline Cu Alloys During High Temperature Irradiation: Role of Self Organization
6:00-10:00 PM	WORKSHOP BANQUET & INFORMAL DISCUSSIONS; Location: Cowgirl Restaurant
Time	Speaker	Topic
Thurs. Sept. 4 Morning	Non-Metals & Fuels K. Yasuda
7:15 AM	BREAKFAST; Location: Promenade
8:00-8:30 AM	M. Heggie	Formation of Complex Microstructures in Graphite
8:30-9:00 AM	W. Windl	Point Defects, Interfaces, and Radiation Damage in Semiconductors and Ceramics
9:00-9:30 AM	R. Raj	Graphene NanoDomain Structures with Multifunctional Properties for Extreme Environments
9:30-10:00 AM	BREAK; Location: Promenade
10:00-10:30 AM	V. Rondinella	Properties and Irradiation Behavior of Nuclear Fuels
10:30-11:00 AM	T. Wiss	Fission and Alpha-damage in Nuclear Oxide Ceramics
11:00-11:30 AM	S. Phillpot	The Role of Microstructure and Defects on Thermal Transport in UO2 and Related Materials
11:45 AM -1:30 PM	LUNCH; Location: Promenade
Thurs. Sept. 4 Afternoon	Fuels Chair: S. Phillpot
1:30-2:00 PM	K. Yasuda	Radiation Stability of Fluorite Structure Oxide Ceramics
2:00-2:30 PM	J. Rest	Analysis of Intra and Intergranular Fission-gas-bubble Size Distributions in U-Mo Fuel
2:30-3:00 PM	A. El-Azab	Towards a Unifying Theoretical Framework for Microstructure Changes and Fission Gas Dynamics in Irradiated Oxide Fuels
3:00-3:30 PM	G. Hofman	Evaluation of the Fission Induced Microstructure that Governs Fission Gas Behavior in U-Mo Alloy Fuel
3:30-4:00 PM	BREAK; Location: Promenade
4:00-5:00 PM	DISCUSSION and WRAP-UP
5:00 PM	ADJOURN

The product of the workshop will be a review paper summarizing the scientific and technical challenges associated with the design of radiation stable microstructures. The journal for this publication is yet to be determined. Invited participants will be asked to contribute to this report.

Meeting Chair:

• Kurt Sickafus
  Los Alamos National Laboratory
  MS G755
  PO Box 1663
  Los Alamos, NM 87545 USA
  Tel.: 505-665-3457
  kurt@lanl.gov
  

International Committee:

• Roger Smith
  Loughborough University
  Dept. of Mathematical Sciences
  Loughborough, LE11 3TU UK
  Tel.: 44-1509-223192
  R.Smith@lboro.ac.uk
  

• Robin Grimes
  Imperial College London
  Dept. of Materials
  Prince Consort Rd.
  London SW7 2BP UK
  Tel.: 44-207-594-6730
  r.grimes@ic.ac.uk
  

• Dieter Wolf
  Idaho National Laboratory
  2151 North Boulevard
  P.O. Box 1625, MS 2211
  Idaho Falls, ID 83415-2211 USA
  Tel.: 208-526-8394
  dieter.wolf@inl.gov
  

Conference Administrator:

• Susan Ramsay
  Los Alamos National Laboratory
  MS G756
  PO Box 1663
  Los Alamos, NM 87545 USA
  Tel.: 505-665-7214
  ramsay@lanl.gov
  

Local Organizing Committee:

• Blas Uberuaga, Chris Stanek, Steve Valone, Dave Devlin, Yong Wang (LANL)

[Logo microstructure courtesy of Samantha Yates, U. of Florida.]