scholarly journals Characterization of In-Situ TiB/TiC Particle-Reinforced Ti-5Al-5Mo-5V-3Cr Matrix Composites Synthesized by Solid-State Reaction with B4C and Graphite through SPS

Metals ◽  
2018 ◽  
Vol 8 (6) ◽  
pp. 377 ◽  
Author(s):  
Steffen Grützner ◽  
Lutz Krüger ◽  
Markus Radajewski ◽  
Ines Schneider
Keyword(s):  
Solid State ◽  
Solid State Reaction ◽  
Matrix Composites ◽  
Tic Particle

On the Solid-State Isomerization of Terpinolene Tetrabromide

2010 ◽  
Vol 63 (3) ◽  
pp. 458
Author(s):  
Paul V. Bernhardt ◽  
Raymond M. Carman ◽  
Tri T. Le
Keyword(s):  
Solid State ◽  
Solid State Reaction ◽  
Bulk Material ◽  
Solution Nmr ◽  
X Ray Diffraction ◽  
In Situ Characterization ◽  
Compound A ◽  
X Ray

The isomerization of terpinolene tetrabromide from the cis-2,4- (diaxial) dibromo isomer (A) to the more stable trans-2,4- (equatorial–axial) compound (B) has been investigated in the solid state. The progress of the solid-state reaction as a function of time was followed by solution NMR analysis, and, more effectively, by micropowder X-ray diffraction of the bulk material in situ. Characterization of the solid-state reaction mixture is facilitated by the existence of X-ray crystal structures of both compounds A (monoclinic) and B (reported previously) in addition to a new triclinic polymorph of compound A reported herein, all three forms being observed by powder X-ray diffraction.

scholarly journals Synthesis and Thermal Properties of Cerium-Dysprosium Oxide

2016 ◽  
Vol 61 (2) ◽  
pp. 965-969 ◽  
Author(s):  
M. Mikuśkiewicz ◽  
M. Stopyra ◽  
G. Moskal
Keyword(s):  
Thermal Properties ◽  
Phase Composition ◽  
Thermal Diffusivity ◽  
Solid State ◽  
Cerium Oxide ◽  
Solid State Reaction ◽  
Synthesis And Characterization ◽  
Equimolar Ratio ◽  
Dysprosium Oxide

Abstract The paper presents results of investigation on synthesis and characterization of cerium-dysprosium oxide. The input powders - dysprosium oxide Dy2O3 and cerium oxide CeO2 - were mixed so as to obtain equimolar ratio of cations, milled in alcohol and synthesized via solid state reaction process at 1350°C under 15MPa in vacuum for 2h. The microstructure, phase composition and thermal properties were analyzed. The obtained material was multiphase. Non-stoichiometric compounds were identified. Thermal diffusivity of investigated material decreased in the temperature range of 25-1000°C from 0,71 to 0,45 mm2/s.

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