Microstructural anomalies in a W-Ni alloy liquid phase sintered under microgravity conditions

1995 ◽  
Vol 26 (9) ◽  
pp. 2484-2486 ◽  
Author(s):  
Yixiong Liu ◽  
Ronald G. Iacocca ◽  
John L. Johnson ◽  
Randall M. German ◽  
Shiro Kohara
Keyword(s):  
Liquid Phase ◽  
Ni Alloy ◽  
Microgravity Conditions

scholarly journals Crystal–liquid phase transitions in three-dimensional complex plasma under microgravity conditions

2018 ◽  
Vol 946 ◽  
pp. 012144 ◽  
Author(s):  
V N Naumkin ◽  
A M Lipaev ◽  
V I Molotkov ◽  
D I Zhukhovitskii ◽  
A D Usachev ◽  
...  
Keyword(s):  
Phase Transitions ◽  
Liquid Phase ◽  
Three Dimensional ◽  
Complex Plasma ◽  
Microgravity Conditions

Surface phenomena during the early stage of liquid phase SPS of a mixture of coarse WC and Ni-alloy particles

2018 ◽  
Vol 50 (11) ◽  
pp. 1072-1076
Author(s):  
G. Maizza ◽  
R. Montanari ◽  
M. Richetta ◽  
A. Varone ◽  
S. Kaciulis ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Early Stage ◽  
Surface Phenomena ◽  
Alloy Particles ◽  
Ni Alloy

Silicon carbide grown by liquid phase epitaxy in microgravity

1998 ◽  
Vol 13 (7) ◽  
pp. 1812-1815 ◽  
Author(s):  
R. Yakimova ◽  
M. Syväjärvi ◽  
C. Lockowandt ◽  
M. K. Linnarsson ◽  
H. H. Radamson ◽  
...  
Keyword(s):  
Growth Rate ◽  
Silicon Carbide ◽  
Liquid Phase ◽  
Liquid Phase Epitaxy ◽  
Carrier Lifetime ◽  
Growth Parameters ◽  
Structural Defects ◽  
Reduced Gravity ◽  
Lifetime Measurements ◽  
Microgravity Conditions

6H and 4H polytype silicon carbide (SiC) layers have been grown on ground and under microgravity conditions by liquid phase epitaxy (LPE) from a solution of SiC in Si-Sc solvent at 1750 °C. The effects of gravity on the growth parameters and material characteristiques have been studied. The growth rate, Sc incorporation, and the structural defects are modified in reduced gravity conditions, while the polytype reproduction of the substrate is not affected. The results obtained are intriguing as to further experiments providing objects for carrier lifetime measurements.

Research on Direct Laser Sintering of Ni-Alloy Powder and Microstructure Feature

2004 ◽  
Vol 471-472 ◽  
pp. 881-885 ◽  
Author(s):  
J.F. Zhao ◽  
Y. Li ◽  
J.H. Zhang
Keyword(s):  
Liquid Phase ◽  
Powder Material ◽  
Alloy Powder ◽  
Liquid Phase Sintering ◽  
Material System ◽  
Primary Crystal ◽  
Ni Alloy ◽  
Direct Laser ◽  
Metal Sintering ◽  
Melting Material

The direct laser metal sintering experiments were carried out with nickel alloy powder material system. The melting–solidification approach was discussed. Microstructure and components of DLMS-process sample were analyzed. The incomplete liquid phase sintering is the main mechanism of the melting-solidification approach. In powder material system, the additive copper improves the wettability of melting material, and minimizes the balling phenomenon. The equiaxial dendrite and the dendrite are the primary crystal morphologies. The compositions of materials are distributed uniformly.

Preparation and Megnetic Performance Study of One Dimensional Co-Ni Nanomaterial

2013 ◽  
Vol 562-565 ◽  
pp. 770-774
Author(s):  
Li Xiang Lu ◽  
Hong Ying Yu ◽  
Dong Bai Sun ◽  
Wan Heng Lu
Keyword(s):  
Magnetic Field ◽  
Magnetic Property ◽  
Liquid Phase ◽  
Reduction Method ◽  
Performance Study ◽  
One Dimensional ◽  
Nano Powder ◽  
Phase Reduction ◽  
Ni Alloy ◽  
Initial Salt

Co-Ni alloy nano array was formed in applied magnetic field via liquid phase reduction method using different surfactants as soft templates.At last, The microstructure and the size of Co-Ni alloy nano-powder were illustrated with FESEM, and the powder’s composition was analyzed by XRD. In this experiment,the reaction temperature, the types and amounts of the surfactants,the mole ratio of the initial salt, in the alloy powder’s morphologies,were all studied.Finally, The powder’s magnetic property was tested by using VSM.

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