Nanophase materials assembled from clusters
The preparation of metal and ceramic atom clusters by means of the gas-condensation method, followed by their in situ collection and consolidation under high-vacuum conditions, has recently led to the synthesis of a new class of ultrafine-grained materials. These nanophase materials, with typical average grain sizes of 5 to 50 nm and, hence, a large fraction of their atoms in interfaces, exhibit properties that are often considerably improved relative to those of conventional materials. Furthermore, their synthesis and processing characteristics should enable the design of new materials with unique properties. Some examples are ductile ceramics that can be formed and sintered to full density at low temperatures without the need for binding or sintering aids, and metals with dramatically increased strength. The synthesis of these materials is briefly described along with what is presently known of their structure and properties. Their future impact on materials science and technology is also considered.
- Research Organization:
- Argonne National Lab., IL (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 10136093
- Report Number(s):
- ANL/CP-75656; CONF-9011279-1; ON: DE92010508
- Resource Relation:
- Conference: 1990 annual technical meeting of the Indian Institute of Metals (IIM),Tiruchirapalli (India),14-17 Nov 1990; Other Information: PBD: Feb 1992
- Country of Publication:
- United States
- Language:
- English
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Nanophase materials assembled from atomic clusters
Nanophase materials assembled from atom clusters