Paper Titles
Fabrication of SPS Compacts from Ta, Hf-Containing ZrB2-ZrC Powder Mixtures Synthesized by the MA-SHS in Air Process
p.1041
SHS Synthesis of the Materials in the Ti-Al-C-N System Using Intermetallics
p.1047
Dense γ-Alon Materials Derived from SHS Synthesized Powders
p.1052
SHS Oxide Catalysts: Synthesis, Properties and Applications
p.1058
Structure and Phase Formation in SHS_FGM
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Laminated and Functionally Graded Ceramics by Electrophoretic Deposition
p.1075
(SiC/Ti3SiC2)n Multi-Layered Coatings Deposited by CVD
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Thermal and Electrical Conductivity of Composites with Graded Interfaces
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Structure and Phase Formation in SHS_FGM

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Abstract:

Self-propagating high-temperature synthesis (SHS), also known as combustion synthesis, is one of the most prospective methods for production functionally graded materials (FGM). The advantages of SHS include short time of reaction and product formation, which allow retaining pre-determined concentration gradient in the synthesized material. In the present work, the following challenges remaining in the field of FGM production by SHS are discussed. First, main features of combustion of multilayer samples are considered from the viewpoint of mutual influence of the combustible and inert layers. Second, evolution of the concentration gradients (profiles) during the combustion is outlined and different methods for controlling this process, such as mechanical pre-activation of the reactants are examined. Third, processes of the product phase and microstructure formation in multilayer SHSmaterials are described. The problem of creating very thin gradient samples and coatings by SHS is also discussed. The consideration includes data of high-speed video recording, timeresolved X-ray diffraction, SEM, EPMA and other experimental techniques.

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Periodical:

Advances in Science and Technology (Volume 45)

Pages:

1067-1074

DOI:

https://doi.org/10.4028/www.scientific.net/AST.45.1067

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Online since:

October 2006

Authors:

A.S. Rogachev

Keywords:

Combustion Synthesis (CS), Functionally Graded Material (FGM), Nano-Lamellar Materials, Self-Propagation High-Temperature Synthesis (SHS), Structure Formation

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© 2006 Trans Tech Publications Ltd. All Rights Reserved

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