Investigation of the Structure and Phase Composition of Aluminum Oxide Powders Obtained by Chemical Dispersion of an Aluminum Alloy with Different Magnesium Content

2014 ◽  
Vol 70 (11-12) ◽  
pp. 437-440 ◽  
Author(s):  
A. D. Shlyapin ◽  
V. P. Tarasovskii ◽  
A. Yu. Omarov ◽  
V. S. Nikol’skii ◽  
I. A. Kurbatova
Keyword(s):  
Aluminum Alloy ◽  
Phase Composition ◽  
Aluminum Oxide ◽  
Magnesium Content ◽  
Chemical Dispersion ◽  
Oxide Powders

INFLUENCE OF MORPHOLOGY, PHASE COMPOSITION AND CONTENT OF ALUMINUM OXIDE PARTICLES ON RHEOLOGICAL PROPERTIES OF AQUEOUS SUSPENSIONS BASED ON THEM

2021 ◽  
pp. 14-25
Author(s):  
V.A. Voronov ◽  
◽  
A.S. Chainikova ◽  
Yu.E. Lebedeva ◽  
D.M. Tkalenko ◽  
...  
Keyword(s):  
Phase Composition ◽  
Aluminum Oxide ◽  
Aggregate Stability ◽  
Plasma Chemical ◽  
Buffer Solution ◽  
Sedimentation Stability ◽  
Aqueous Suspensions ◽  
Oxide Powders ◽  
Ceramic Samples ◽  
Oxide Particles

This work investigated the chemical and phase composition of aluminum oxide powders obtained by various methods (alkoxide, codeposition, thermal and plasma-chemical). The physicomechanical, thermophysical and thermal properties of ceramic samples based on them have been determined. The effect of the nature of the aluminum oxide powder and the production process parameters on the sedimentation stability of aqueous suspensions based on them has been determined. The influence of the content of particles of aluminum oxide, buffer solution and rheological additives on the viscosity, sedimentation and aggregate stability of aqueous suspensions has been determined.

Principles of Structure and Phase Composition Formation in Composite Master Alloys of the Al–Ti–B/B4c Systems Used for Aluminum Alloy Modification

2018 ◽  
Vol 60 (11) ◽  
pp. 2025-2031 ◽  
Author(s):  
I. A. Zhukov ◽  
V. V. Promakhov ◽  
A. E. Matveev ◽  
V. V. Platov ◽  
A. P. Khrustalev ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Phase Composition ◽  
Composition Formation ◽  
Master Alloys ◽  
Alloys Of The Al

Synthesis of nanostructured spherical aluminum oxide powders by plasma engineering

2005 ◽  
Vol 36 (2) ◽  
pp. 301-309 ◽  
Author(s):  
T. Laha ◽  
K. Balani ◽  
A. Agarwal ◽  
S. Patil ◽  
S. Seal
Keyword(s):  
Aluminum Oxide ◽  
Oxide Powders

Separation of aluminum oxide powders with different degrees of aggregation by sedimentation in an aqueous medium

2010 ◽  
Vol 5 (7-8) ◽  
pp. 498-505 ◽  
Author(s):  
A. P. Safronov ◽  
E. G. Kalinina ◽  
D. A. Blagodetelev ◽  
Yu. A. Kotov
Keyword(s):  
Aluminum Oxide ◽  
Aqueous Medium ◽  
Oxide Powders

Temperature Analysis of the Luminescence from Eu3+ Doped Aluminum Oxide Powders Prepared by Combustion Synthesis

2012 ◽  
Vol 4 (5) ◽  
pp. 681-685 ◽  
Author(s):  
Nikifor Rakov ◽  
Lucian R. A. Bispo ◽  
Dayanne F. Amaral ◽  
Glauco S. Maciel
Keyword(s):  
Aluminum Oxide ◽  
Combustion Synthesis ◽  
Temperature Analysis ◽  
Oxide Powders

Retention of nanostructure in aluminum oxide by very rapid sintering at 1150 °C

1995 ◽  
Vol 10 (2) ◽  
pp. 237-239 ◽  
Author(s):  
Subhash H. Risbud ◽  
Chien-Hua Shan ◽  
Amiya K. Mukherjee ◽  
Moon J. Kim ◽  
J.S. Bow ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Aluminum Oxide ◽  
Resistance Heating ◽  
Sintering Process ◽  
Oxide Powders ◽  
Transmission Electron ◽  
Rapid Sintering ◽  
Electron Energy Loss ◽  
Plasma Activated Sintering

Aluminum oxide powders doped with MgO (300 to 500 nm) were sintered to almost theoretical density within just 10–15 min at 1150 °C using a plasma-activated sintering process based on charging the loosely filled powders with an electric discharge prior to densification by resistance heating. The microstructure of the consolidated disks was examined by high resolution transmission electron microscopy (HREM) and electron energy loss spectroscopy (EELS) and revealed excellent grain to grain contact with virtually no grain growth and structurally clean grain boundaries.

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