Herbert Gleiter to Receive 2008 Von Hippel Award
- PDF / 50,082 Bytes
- 1 Pages / 576 x 783 pts Page_size
- 62 Downloads / 204 Views
Herbert Gleiter to Receive 2008 Von Hippel Award The 2008 Von Hippel Award, the Materials Research Society’s highest honor, will be presented to Herbert Gleiter, Forschungszentrum Karlsruhe, Institute for Nanotechnology, Karlsruhe, Ger many. Gleiter is being recognized “for his imaginative experiments on the role of defects that have led to new insights into the importance of length scale in materials and have resulted in many new applications.” Gleiter will accept the honor during the awards ceremony at the 2008 MRS Fall Meeting in Boston on Dec. 3 at 6:00 p.m. in the Grand Ballroom of Sheraton Boston Hotel, where he will then present his award lecture. Throughout his career, Gleiter has been, and continues to be, an outstanding researcher in the field of materials science. His new and visionary concepts have laid the foundation for new developments in materials science, and also impacted related areas of research, such as physics and chemistry. He has made major contributions in the areas of nanocrystalline materials, the structure and properties of inter-crystalline interfaces, high-strength materials, and materials with electronically tunable properties. Gleiter was among the first to recognize the potential of nanocrystalline materials, which is one of the fastest growing technology areas in the marketplace. Several years prior to the first experimental evidence of the new structure of nanocrystalline materials, Gleiter predicted their main structural details and the potential for novel properties. The original concept of nanocrystalline materials was based on the idea that a new class of solids can be produced by a reduction of the grain size to the dimensions of a few interatomic distances. Because the atomic structure at these interfaces is different from that in perfect crystals, nanocrystalline materials have properties which differ from those of crystalline and amorphous materials, in some cases by orders of magnitude Gleiter’s pioneering influence in the study of the role of defects in intercrystalline interfaces resulted in two important discoveries: the proof of the existence of grain boundary dislocations, and the development (in collaboration with B. Chalmers and G. Bishop) of the structural unit model, which still remains the basis of all grain boundary structure models. The development of high-strength materials by precipitation hardening has
1072
Herbert Gleiter numerous applications in industry. Gleiter discovered the basic hardening mechanism responsible for the strength of high-temperature alloys with ordered precipitations. Using transmission electron spectroscopy, he also identified the dislocation mechanisms of the prismatic cross slip, which play an important role in the high-temperature deformation of precipitation hardened alloys. The realization that properties of a material might be “tuned” by making the microstructural length scale comparable to the electronic screening length led Gleiter to the discovery of a new class of materials. Using this concept, he demonstrated that the surf
Data Loading...
