Combustion synthesis of Ni3Al and Ni3Al-matrix composites

1992 ◽  
Vol 23 (1) ◽  
pp. 69-76 ◽  
Author(s):  
J. P. Lebrat ◽  
A. Varma ◽  
A. E. Miller
Keyword(s):  
Combustion Synthesis ◽  
Matrix Composites

Microwave combustion synthesis of in situ Al 2 O 3 and Al 3 Zr reinforced aluminum matrix composites

2015 ◽  
Vol 68 ◽  
pp. 283-288 ◽  
Author(s):  
Heguo Zhu ◽  
Bo Hua ◽  
Tao Cui ◽  
Jiewen Huang ◽  
Jianliang Li ◽  
...  
Keyword(s):  
Combustion Synthesis ◽  
Aluminum Matrix ◽  
Aluminum Matrix Composites ◽  
Matrix Composites ◽  
Microwave Combustion

Combustion Synthesis of Niobium Aluminide Matrix Composites

1994 ◽  
Vol 350 ◽  
Author(s):  
C. R. Kachelmyer ◽  
A. Varma
Keyword(s):  
Melting Point ◽  
Combustion Synthesis ◽  
Thermal Explosion ◽  
Matrix Composites ◽  
Product Density ◽  
B Additions ◽  
Reaction Completion ◽  
Niobium Aluminide

AbstractCombustion synthesis of NbAl3-matrix composites with Al2O3 and B additions was studied using the thermal explosion mode. The addition of B to the reaction mixture resulted in the formation of NbB2, small amounts of NbB and unreacted Al. The Al2O3 addition did not affect the NbAl3-matrix reaction completion but the final product density increased with increasing Al2O3 loading. In both NbAl3-matrix composites, the reaction was initiated above the melting point of Al.

Self-propagating combustion synthesis of intermetallic matrix composites in the ISS

2007 ◽  
Vol 19 (5-6) ◽  
pp. 85-89 ◽  
Author(s):  
Roberto Orrù ◽  
Roberta Licheri ◽  
Antonio Mario Locci ◽  
Giacomo Cao ◽  
Jimmy De Wilde ◽  
...  
Keyword(s):  
Combustion Synthesis ◽  
Matrix Composites ◽  
Intermetallic Matrix ◽  
Intermetallic Matrix Composites

Mechanistic studies in combustion synthesis of NiAl–TiB2 composites: Effects of gravity

2001 ◽  
Vol 16 (6) ◽  
pp. 1614-1625 ◽  
Author(s):  
Cheryl Lau ◽  
Alexander Mukasyan ◽  
Aleksey Pelekh ◽  
Arvind Varma
Keyword(s):  
Particle Size ◽  
Combustion Synthesis ◽  
Combustion Front ◽  
Metal Matrix ◽  
Volume Fraction ◽  
Liquid Solution ◽  
Matrix Composites ◽  
Mechanistic Studies ◽  
Entire Surface ◽  
Microgravity Conditions

Combustion synthesis (CS) of NiAl-based materials reinforced by TiB2 particles was investigated under both terrestrial and microgravity conditions. The synthesized metal matrix composites (MMC) are characterized by very fine (<1 μm) reinforced particulates, which have strong bonding along their entire surface with matrix (NiAl) and are distributed uniformly in it. It was found that microgravity leads to a decrease in the average TiB2 particle size, while higher volume fraction of NiAl component in the material leads to the formation of coarser reinforced particulates. The mechanism of structure formation of different MMCs during CS was identified by using the quenching technique. For example, it was shown that TiB2 grains appear due to crystallization from the complex (Ni–Al–Ti–B) liquid solution formed in the combustion front. An overall decrease of microstructural transformation rates was observed under microgravity.

Combustion Synthesis of NiTi – TiC Composites with Controlled Porosity for Biomedical Applications

2003 ◽  
Vol 800 ◽  
Author(s):  
Douglas E. Burkes ◽  
Guglielmo Gottoli ◽  
John J. Moore ◽  
Hu Chun Yi ◽  
Reed A. Ayers
Keyword(s):  
Combustion Synthesis ◽  
Orthopedic Implants ◽  
Functionally Graded ◽  
Nickel Titanium ◽  
Synthesis Process ◽  
Matrix Composites ◽  
Reaction Products ◽  
High Temperature Synthesis ◽  
Commercial Applications ◽  
Image Position

ABSTRACTCombustion synthesis, or Self-propagating High- temperature Synthesis (SHS), is currently being used by the Center for Commercial Applications of Combustion in Space (CCACS) at the Colorado School of Mines to produce advanced porous materials for several important applications. These materials include ceramic, inter- metallic, and metal- matrix composites that can be used for orthopedic implants, heat exchanger and damping systems and micro-and macro-filter applications. Functionally graded materials, both in porosity and composition, can be produced using a range of combustion synthesis reactions systems. There are multiple factors that contribute to the final SHS product, e.g. reactant stoichiometry, initial relative density and pre-heat. The synthesis of nickel-titanium (NiTi) intermetallic compounds and composites is of considerable interest due to the ability to create a porous, shape memory and super-elastic alloy with high corrosion resistance. The synthesis effects of adding a carbon reactant so as to modify the reaction products and reaction exothermicity have been studied through the use of two different reaction stoichiometries involving elemental nickel, titanium and carbon. This paper outlines the synthesis of NiTi intermetallic composites based on the following SHS chemical reaction:The effect of the carbon reactant and the initial sample green density on the apparent porosity, bulk density, pore size and pore distribution of the final materials has been studied and is presented within this paper. A NiTi- TiC intermetallic ceramic composite has been synthesized that is functionally graded in both composition and porosity: the latter grading being due to buoyancy and gas evolution effects. Proposed kinetic mechanisms that drive this synthesis process and control the graded structure are discussed in detail.

Combustion synthesis of metal-matrix composites: Part I, the Ti-TiC-Al2O3 system

1996 ◽  
Vol 34 (2) ◽  
pp. 175-181 ◽  
Author(s):  
A.O. Kunrath ◽  
T.R. Strohaecker ◽  
J.J. Moore
Keyword(s):  
Combustion Synthesis ◽  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Matrix Composites
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