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One-Step Synthesis And Consolidation Of Nanophase Materials

详细技术说明: Materials with a grain size in the nanometer (10-9 m) range have been the focus of considerable research interest, since such materials have been shown to possess useful properties not obtained with larger grain sizes. However, the preparation of these materials has required at least two processing steps, usually involving the preparation of nanometer-sized grains in powder form (either from rapid solidification from vapor phase or mechanical milling of larger-sized grains) followed by the consolidation of such powders into denser materials by rapid sintering. A University of California scientist, in collaboration with an international research team, has invented a one-step method for synthesizing and consolidating dense nanophase materials. In the UC process, the activation of the synthetic reaction and its short duration ensure that grain growth is totally avoided or markedly minimized, while generating a highly consolidated product that does not require sintering. So far, this process has been successfully employed with ceramics, intermetallics, and composite materials ( e.g. MoSi2, FeAl, TiB2-TiN), and appears to be readily extensible to numerous other materials of varying complexity. Thus, commercial applications of this invention may extend to the production of a wide variety of ceramic materials and devices.

*Principal Investigation: Name: Frederic Bernard
Department:

Name: Frederic Charlot
Department:

Name: Eric Gaffet
Department:

Name: Zuhair Munir
Department:

附加资料: Patent Number: US6200515B1
Application Number: US1999374049A
Inventor: Munir, Zuhair A. | Charlot, Frederic | Bernard, Frederic | Gaffet, Eric
Priority Date: 13 Aug 1999
Priority Number: US6200515B1
Application Date: 13 Aug 1999
Publication Date: 13 Mar 2001
IPC Current: C04B0035622 | B22F000100 | B22F000323 | C04B003558 | C04B003564 | C04B0035645 | H05B000300
US Class: 264434 | 264449 | 419045 | 419048 | 419051 | 419052
Assignee Applicant: Centre National de la Recherche Scientifique,Paris | The Regents of the University of California,Oakland
Title: One-step synthesis and consolidation of nanophase materials
Usefulness: One-step synthesis and consolidation of nanophase materials
Summary: Used for the preparation of crystalline ceramic, intermetallic and composite materials
Novelty: Simultaneous synthesis and densification of nanocrystallline materials e.g. solid crystalline ceramic, intermetallic and composite materials

其他

Additional Technologies by these Inventors

Tech ID/UC Case

10144/1999-355-0

Related Cases

1999-355-0

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