We are very happy to welcome five invited speakers at the International Symposium on "New Wave of Ceramics for the 21st Century". Their lectures and biographies are introduced below.

Prof. Joseph Haus
Prof. Guozhong Cao
Prof. Byubgsei Jun
Prof. Racquel Zapanta LeGeros
Prof. Wolfgang Kaysser

Director of the Electro-Optics Program, University of Dayton, U.S.A.
E-mail: Joseph.Haus@notes.udayton.edu
Homepage: http://www.engr.udayton.edu/eop

He is a world famous researcher in photonic crystals. The principle, present status of research, potential applications besides his latest research will be reviewed.

Lecture:
Recent Progress in Photonic Crystals (Tentative)

Abstract
There are physical principles that are unique to photonic crystals, which have been the basis for novel optoelectronic device strategies. This talk reviews those principles and examines the diverse pathways that scientists and engineers have found to fabricate photonic crystals. The methodologies range from semiconductor nanotechnology patterning and growth to inorganic or polymer self-assembly and chemical synthesis. To illustrate the usefulness of photonic crystals novel applications in ultrafast laser technology, integrated optics, sensor protection and data storage are considered.

Biography:
Professor Haus is Director of the Electro-Optics Program at the University of Dayton. He has been working on the science and applications of photonic crystals for more than ten years. His recent work is especially concentrated on resonant enhancement of nonlinear optical effects and integrated optics with photonic crystal technology. In 1991-2 he visited the University of Tokyo as a Hitachi Ltd. Quantum Materials Chair recipient. He is a fellow of the Optical Society of America.

Department of Materials Science and Engineering, University of Washington, Seattle, WA.
Email: gzcao@u.washington.edu
Homepage: http://faculty.washington.edu/gzcao

Dr. Cao is the young hope in nanomaterials research. His research group is investigating many different areas in materials science and engineering which include micro-patterning with sol-gel route, nano-fabrications, ultra-low dielectric constant film, ferroelectrics, piezoelectrics and so on.

Lecture:
Growth of Nanostructured Materials by Sol-Gel Electrophoresis

Abstract:
This presentation will start with a brief introduction to various techniques commonly used in the growth of nanostructured inorganic materials, such as vapor-liquid-solid growth, electroplating, stepped-surface growth, and lithography. The focus of the presentation, however, will be on our recent progress in the template-based growth of nanorods and patterned structures of dielectric complex oxides and hierarchically structured mesoporous silica by a combination of sol-gel processing and electrophoretic deposition. Further discussion on the growth of hierarchically structured mesoporous silica through curvature-induced-self-assembly will also be included.

Biography:
Guozhong Cao is assistant professor of materials science and engineering at the University of Washington, Seattle, WA. He received his PhD from Eindhoven University of Technology in the Netherlands in 1991. Prior to joining the UW faculty in 1996, he worked in University of Twente and University of Nijmegen, both in the Netherlands, and in Advanced Materials Laboratory in Abuqurque, NM. His current research interest is on materials processing and functional ceramics and hybrid materials. He has authored or co-authored over 100 refereed technical papers. The major awards include the European Union Research Fellowship in 1993, the College Outstanding Educator Award in 1999, and the University Distinguished Teaching Award in 2000.

Director, Institute for Advanced Materials
Professor, Division of Advanced Materials Engineering
Kyungnam University, Masan, Korea, 631-710
E-mail: bsjun@kyungnam.ac.kr

Professor Jun has developed an energy saving process of nano powders synthesis by the solution combustion route after his long years investigation. He will introduce this economical process of nano oxide powders.

Lecture:
Development of Energy Saving Processes for Nano-Scaled Multi-Component Oxide Ceramic Materials by Solution Combustion

Abstract:
The Research is to develop new criteria on the combustion of fuel and oxidizer at low temperature enough to initiate ignition and the short residence time for the formation of nano-scale agglomerate free multi-component oxide ceramic powders. Ignition condition may be also considered by the effect of water vapor pressure, equilibrium species and initial radius of the droplets, and therefore experiments are controlled by those parameters. Stoichiometric compounds with multi-component can be easily synthesized using spray combustion when the chemical reaction kinetics and fluid flow mechanisms are well coupled with experimental efforts.

Biography:
1) Professor, Division of Advanced Materials Engineering, Kyungnam University, Masan, Korea. (1983 - present)
2) Adjunct professor, MRL, Pennstate University, USA. (1997 - 1999)
3) Senior researcher, Yudong Co. Ltd., Seoul, Korea. (1978 - 1980)
4) Senior researcher, Saehan Co. Ltd., Incheon, Korea. (1976 - 1978)

Major research topics
- Preparations of nano-scale multi-component oxide powders from solution combustion synthesis.
- Calculations of equilibrium species and solution combustion process for spray combustion synthesis(SCS).
- Coagulation and thixotropy of alumina colloidal suspension.

Interim Chair, Department of Biomaterials, New York University College of Dentistry, U.S.A.
E-mail: rzl1@nyu.edu

Professor LeGeros is an orthority in biomaterials research, especially on calcium phosphate ceramics. Her study on joining bone with artificial materials is very famous. She will give a talk on "Calcium Phosphate Ceramics in Dentistry and Medicine".

Abstract:
Calcium phosphate ceramics have now gained acceptance as bone substitute materials in dentistry and medicine. Albee reported the first successful medical application in human in 1920 and the first dental application in animals was reported in 1975 by Nery et al. At the present time, dental and medical applications of commercial calcium phosphate ceramics or calcium phosphate-based composites include: repair of bony defects, repair of periodontal defects, maintenance or augmentation of alveolar ridge, ear implant, eye implant, spine fusion, adjuvant to uncoated implants. See further details.

Biography:

Dec 2000 - present	Interim Chair, Department of Biomaterials and Biomimetics, NYUCD
1992 - present	Director, Research Center for Minority Oral Health
1971 - present	Director, Calcium Phosphate Research Laboratory
	Principal Investigator, Research grants funded by NIH-and industry
1983 - present	Professor, Department of Dental Materials, NYUCD
1986 - 1993	Director, Office of Research Program Training & Development, NYUCD
1977 - 1983	Associate Professor, Dept. of Dental Materials
1976 - 1977	Associate Professor, Dept. of Biochemistry, NYUCD
1974 - 1980	Research Associate Professor, Dept. of Urology, NYU Medical School

Awards:
IADR Distinguished Scientist Award for Basic Research in Biological Mineralization, 1997
NYU Distinguished Alumnae Award, 1991
Scientific Sponsor Hatton Award, 1983, IADR
The Children's Research Society Award, 1983
NYUCD Dean's Merit Award, 1993, 2001
Research grant awards from National Institute of Dental Research of the National Institutes of Health, 1971 -

Research interests:
(1) mineral phases of calcified tissues (normal and pathological);
(2) biological apatites and related calcium phosphates;
(3) studies on substituents (e.g., carbonate, fluoride, magnesium, strontium, zinc) on the formation and properties of apatite;
(4) formation and stability of biologically relevant calcium phosphates - related to dental caries, dental calculus and pathological calcifications;
(5) preparation and characterization of calcium phosphate-based bone graft materials;
(6) preparation and characterization of calcium phosphate coatings on orthopedic and dental implants;
(7) surface modifications of dental and orthopedic implants.

Director, Institute of Materials Research, German Aerospace Center 51147 Cologne, Germany.
E-mail : wolfgang.kaysser@dlr.de
Homepage: http://www.kp.dlr.de/WB-WF

Professor Kaysser is an authority in processing of high temperature materials such as gas turbine engine parts. His group has recently developed highly porous oxide ceramic matrix composites (WHIPOX) which is useful not only for aircraft turbine engines and re-entry spacecraft, but also for non-aerospace applications to thermal barriers, filters, catalysts, and light-weight structures (http://www.whipox.de).

Lecture:
Advanced Oxide/Oxide Ceramic Matrix Composites for Cleaner Gas Turbines

Abstract
Environmental compatibility and the efficiency of stationary and aircraft gas turbines could be substantially improved if materials would be available which could successfully withstand the extreme and long term high-temperature and heavy gas corrosion conditions present at heat protection systems, liners or diffuser rings. Due to localized stress concentrations long term damage tolerance is an additional prerequisite for those components. Oxide/oxide ceramic composites are potential candidates for the gas turbine parts due to their intrinsic oxidation stability and damage tolerance. A number of recent attempts will be described to obtain components by controlled and price-worthy processing and to guarantee the damage tolerant behavior during extended application. Systems with coated oxide fibers and low porosity matrices will be compared with several approaches based on uncoated fibers and porous matrix materials. Special emphasis will be put on wound highly porous oxide ceramic matrix composites (WHIPOX) which have been developed using a winding technique and water based mullite slurry infiltration of fiber bundles (e. g. Nextel 610 or Nextel 720).

Biography:
Born 31.08.1950 in southern Germany. Studied Metals Engineering at the University Stuttgart and got there his diploma 1975 and his Ph. D 1978. He was visiting scientist at MIT in Boston and Senior Scientist at the Max-Planck-Institute for Materials Science in Stuttgart until 1992. Major research areas were powder metallurgy and sintering of ceramics. Since 1992 he is Director of the Institute of Materials Research at the German Aerospace Center in Cologne and at same time full professor at the Technical University of Aachen. He was honored in 1981 by the Max-Planck-Society with the Otto Hahn Medal.

Current major research topics:
Oxide/oxide ceramic matrix composits, ceramic thermal barrier coatings, joining of aluminuim alloys, titanium matrix composits and thermal flow sensors.

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