Self-propagating high temperature synthesis of BaFe12O19, Mg0.5Zn0.5Fe2O4 and Li0.5Fe2.5O4; time resolved X-ray diffraction studies (TRXRD)

2001 ◽  
Vol 11 (1) ◽  
pp. 193-199 ◽  
Author(s):  
Ivan P. Parkin ◽  
Quentin A. Pankhurst ◽  
Louise Affleck ◽  
Marco D. Aguas ◽  
Maxim V. Kuznetsov
Keyword(s):  
High Temperature ◽  
X Ray Diffraction ◽  
Temperature Synthesis ◽  
Time Resolved ◽  
X Ray ◽  
High Temperature Synthesis

A time-resolved x-ray diffraction study of Ti5Si3 product formation during combustion synthesis

1997 ◽  
Vol 12 (12) ◽  
pp. 3230-3240 ◽  
Author(s):  
C. R. Kachelmyer ◽  
I. O. Khomenko ◽  
A. S. Rogachev ◽  
A. Varma
Keyword(s):  
Thermal Expansion ◽  
High Temperature ◽  
Product Formation ◽  
X Ray Diffraction ◽  
Temperature Synthesis ◽  
Time Resolved ◽  
X Ray ◽  
Thermal Expansion Coefficients ◽  
High Temperature Synthesis ◽  
Expansion Coefficients

Time-resolved x-ray diffraction (TRXRD) was performed during Ti5Si3 synthesis by the self-propagating high-temperature synthesis mode for different Ti size fractions. It was determined that the time for product formation (ca. 15 s) was independent of Ti particle size. However, the formation of Ti5Si4 phase occurred when relatively large titanium particles were used. A simultaneous measurement of the temperature and TRXRD allowed us to attribute the shifting of XRD peaks at high temperature to thermal expansion of the Ti5Si3 product. The thermal expansion coefficients differ for different crystal planes, and their numerical values compare well with those reported previously in the literature.

A new experimental setup for the time resolved x-ray diffraction study of self-propagating high-temperature synthesis

2002 ◽  
Vol 73 (2) ◽  
pp. 422-428 ◽  
Author(s):  
D. Vrel ◽  
N. Girodon-Boulandet ◽  
S. Paris ◽  
J. F. Mazué ◽  
E. Couqueberg ◽  
...  
Keyword(s):  
High Temperature ◽  
Diffraction Study ◽  
Experimental Setup ◽  
X Ray Diffraction ◽  
Temperature Synthesis ◽  
Time Resolved ◽  
X Ray ◽  
High Temperature Synthesis

Self propagating high temperature synthesis of magnesium zinc ferrites (MgxZn1 − xFe2O3): thermal imaging and time resolved X-ray diffraction experiments

2004 ◽  
Vol 14 (7) ◽  
pp. 1104-1111 ◽  
Author(s):  
Hayley Spiers ◽  
Ivan P. Parkin ◽  
Quentin A. Pankhurst ◽  
Louise Affleck ◽  
Mark Green ◽  
...  
Keyword(s):  
High Temperature ◽  
Thermal Imaging ◽  
X Ray Diffraction ◽  
Temperature Synthesis ◽  
Time Resolved ◽  
X Ray ◽  
High Temperature Synthesis

A Study of Fe-Based Composite Coating Fabricated by the Self-Propagating High Temperature Synthesis

2012 ◽  
Vol 626 ◽  
pp. 138-142
Author(s):  
Saowanee Singsarothai ◽  
Vishnu Rachpech ◽  
Sutham Niyomwas
Keyword(s):  
High Temperature ◽  
Composite Coating ◽  
Steel Substrate ◽  
The Self ◽  
X Ray Diffraction ◽  
Temperature Synthesis ◽  
X Ray ◽  
High Temperature Synthesis ◽  
Precursor Powders ◽  
Scanning Electron

The steel substrate was coated by Fe-based composite using self-propagating high-temperature synthesis (SHS) reaction of reactant coating paste. The green paste was prepared by mixing precursor powders of Al, Fe2O3and Al2O3. It was coated on the steel substrate before igniting by oxy-acetylene flame. The effect of coating paste thickness and the additives on the resulted Fe-based composite coating was studied. The composite coating was characterized by X-ray diffraction (XRD) and scanning electron microscope (SEM) couple with dispersive X-ray (EDS).

Self-Propagating High-Temperature Synthesis of Fe-W(B, C) Based Composite

2013 ◽  
Vol 748 ◽  
pp. 46-50 ◽  
Author(s):  
Saowanee Singsarothai ◽  
Sutham Niyomwas
Keyword(s):  
Electron Microscope ◽  
High Temperature ◽  
Scanning Electron Microscope ◽  
The Self ◽  
X Ray Diffraction ◽  
Temperature Synthesis ◽  
X Ray ◽  
High Temperature Synthesis ◽  
Flame Ignition ◽  
Scanning Electron

Fe-W based composite have successfully been prepared using natural resource. The ferberite (Fe (Mn, Sn)WO4) tailings mixed with aluminum, carbon and boron oxide powder were used as reactants. The reactants were pressed and followed by oxy-acetylene flame ignition. The products from the self-propagating high-temperature synthesis (SHS) reaction were characterized by X-ray diffraction (XRD) and scanning electron microscope (SEM) couple with dispersive X-ray (EDS).

Microstructure and Wear Performance of Cu-Mo-Si Alloys Fabricated by Self-Propagation High-Temperature Synthesis

2010 ◽  
Vol 658 ◽  
pp. 408-411
Author(s):  
Hui Xie ◽  
Lei Jia ◽  
Si Ming Wang ◽  
Ji Ling Zhu ◽  
Zhen Lin Lu
Keyword(s):  
High Temperature ◽  
Wear Behavior ◽  
X Ray Diffraction ◽  
Temperature Synthesis ◽  
Wear Performance ◽  
X Ray ◽  
Cu Content ◽  
High Temperature Synthesis ◽  
Pin On Disc ◽  
Worn Surface

Cu-Mo-Si alloys with different Cu contents were prepared by self-propagation high-temperature synthesis (SHS). The microstructure and the worn surface morphology were observed using scanning electron microscopy (SEM) together with energy dispersive X-ray spectroscopy (EDS) analysis. Phase composition was determined by X-ray diffraction (XRD). The wear behavior of the Cu-Mo-Si alloys was characterized by pin-on-disc wear tester. The results showed that most of Si atoms dissolved in Cu matrix or resulted in formation of compound with Cu, while only small amount of Si atoms reacted with Mo atoms to form Mo5Si3 particles in the Cu-Ni-Si alloys with 80% Cu content. The wear rate of Cu-Mo-Si alloys descended with a decrease of Cu content, and the predominant wear mechanism could be identified as abrasive wear for Cu content less than 90% and plastic deformation for Cu content higher than 90%.

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