Fabrication of in situ Al2O3 reinforced nanostructure 304 stainless steel matrix composite by self-propagating high temperature synthesis process

2015 ◽  
Vol 84 ◽  
pp. 325-330 ◽  
Author(s):  
J. Feizabadi ◽  
J. Vahdati Khaki ◽  
M. Haddad Sabzevar ◽  
M. Sharifitabar ◽  
S. Aliakbari Sani
Keyword(s):  
Stainless Steel ◽  
High Temperature ◽  
Matrix Composite ◽  
304 Stainless Steel ◽  
Synthesis Process ◽  
Steel Matrix ◽  
Temperature Synthesis ◽  
High Temperature Synthesis ◽  
Steel Matrix Composite

scholarly journals High-Temperature Synthesis of Metal–Matrix Composites (Ni-Ti)-TiB2

2021 ◽  
Vol 11 (5) ◽  
pp. 2426
Author(s):  
Vladimir Promakhov ◽  
Alexey Matveev ◽  
Nikita Schulz ◽  
Mikhail Grigoriev ◽  
Andrey Olisov ◽  
...  
Keyword(s):  
High Temperature ◽  
Composite Materials ◽  
Metal Matrix Composite ◽  
Matrix Composite ◽  
Metal Matrix ◽  
Average Particle Size ◽  
Synthesis Process ◽  
Average Particle ◽  
Temperature Synthesis ◽  
High Temperature Synthesis

Currently, metal–matrix composite materials are some of the most promising types of materials, and they combine the advantages of a metal matrix and reinforcing particles/fibres. Within the framework of this article, the high-temperature synthesis of metal–matrix composite materials based on the (Ni-Ti)-TiB2 system was studied. The selected approaches make it possible to obtain composite materials of various compositions without contamination and with a high degree of energy efficiency during production processes. Combustion processes in the samples of a 63.5 wt.% NiB + 36.5 wt.% Ti mixture and the phase composition and structure of the synthesis products were researched. It has been established that the synthesis process in the samples proceeds via the spin combustion mechanism. It has been shown that self-propagating high-temperature synthesis (SHS) powder particles have a composite structure and consist of a Ni-Ti matrix and TiB2 reinforcement inclusions that are uniformly distributed inside it. The inclusion size lies in the range between 0.1 and 4 µm, and the average particle size is 0.57 µm. The obtained metal-matrix composite materials can be used in additive manufacturing technologies as ligatures for heat-resistant alloys, as well as for the synthesis of composites using traditional methods of powder metallurgy.

Synthesis of Composite Materials from Natural Precursors by Self-Propagating High Temperature Synthesis Process

2012 ◽  
Vol 488-489 ◽  
pp. 490-494 ◽  
Author(s):  
Sutham Niyomwas
Keyword(s):  
High Temperature ◽  
Composite Materials ◽  
Synthesis Process ◽  
X Ray Diffraction ◽  
Temperature Synthesis ◽  
Minimization Method ◽  
Sem Image ◽  
High Temperature Synthesis ◽  
Sem Image Analysis

The composite materials have been synthesized in situ by self-propagating high temperature synthesis (SHS) from natural precursors. The studied natural resources are ilmenite, kaolin, sand and rice husk ash. The reactions were carried out in a SHS reactor under static argon gas at the pressure of 0.5 MPa. The standard Gibbs energy minimization method was used to calculate the equilibrium compositions of the reacting species. The composites results have been characterized by scanning electron microscope (SEM), image analysis and X-ray diffraction (XRD). The results showed that the production of composite materials using SHS process is feasible and agree well with the thermodynamics calculations.

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