scholarly journals A simple and straightforward mechanochemical synthesis of the far-from-equilibrium zinc aluminate, ZnAl2O4, and its response to thermal treatment

RSC Advances ◽  
2015 ◽  
Vol 5 (67) ◽  
pp. 54321-54328 ◽  
Author(s):  
Martin Fabián ◽  
Patrick Bottke ◽  
Vladimír Girman ◽  
Andre Düvel ◽  
Klebson Lucenildo Da Silva ◽  
...  
Keyword(s):  
Thermal Treatment ◽  
Mechanochemical Synthesis ◽  
Structural State ◽  
Zinc Aluminate ◽  
Far From Equilibrium

Far-from-equilibrium nanostructured ZnAl2O4 is prepared via simple and straightforward mechanochemical synthesis. Upon heating above 1100 K, mechanosynthesized ZnAl2O4 relaxes towards a structural state that is similar to the bulk one.

Ultrasonically-assisted mechanochemical synthesis of zinc aluminate spinel from aluminium-rich layered double hydroxide

2019 ◽  
Vol 272 ◽  
pp. 227-233 ◽  
Author(s):  
Márton Szabados ◽  
Zoltán Kónya ◽  
Ákos Kukovecz ◽  
Pál Sipos ◽  
István Pálinkó
Keyword(s):  
Layered Double Hydroxide ◽  
Mechanochemical Synthesis ◽  
Zinc Aluminate ◽  
Double Hydroxide

Thermal Treatment Effect and Structural State of Rod-Shaped Assortment 40Kh Steel on the Speed of Ultrasound Waves and Poisson Coefficient

2020 ◽  
Vol 50 (8) ◽  
pp. 579-584
Author(s):  
O. V. Murav’eva ◽  
V. V. Murav’ev ◽  
A. F. Basharova ◽  
M. A. Sintsov ◽  
O. P. Bogdan
Keyword(s):  
Thermal Treatment ◽  
Treatment Effect ◽  
Structural State ◽  
40Kh Steel ◽  
Poisson Coefficient ◽  
Ultrasound Waves ◽  
Speed Of Ultrasound

Effects of mild cyclic thermal treatment on the structural state and hardness of VZhL-12U alloy

1995 ◽  
Vol 27 (3) ◽  
pp. 129-133
Author(s):  
G. Ya. Bazelyuk ◽  
R. G. Gontareva ◽  
A. M. Lyubchik ◽  
G. A. Petrunin ◽  
L. V. Tikhonov ◽  
...  
Keyword(s):  
Thermal Treatment ◽  
Structural State ◽  
Cyclic Thermal Treatment

Pollutant Identification by Selected Area Electron Diffraction

1974 ◽  
Vol 32 ◽  
pp. 532-533
Author(s):  
R. E. Ferrell ◽  
G. G. Paulson ◽  
C. W. Walker
Keyword(s):  
Thermal Treatment ◽  
Electron Diffraction ◽  
Sample Preparation ◽  
Crystal Structures ◽  
Water Samples ◽  
Environmental Samples ◽  
Short Review ◽  
Selected Area Electron Diffraction ◽  
Multiple Component

Selected area electron diffraction (SAD) has been used successfully to determine crystal structures, identify traces of minerals in rocks, and characterize the phases formed during thermal treatment of micron-sized particles. There is an increased interest in the method because it has the potential capability of identifying micron-sized pollutants in air and water samples. This paper is a short review of the theory behind SAD and a discussion of the sample preparation employed for the analysis of multiple component environmental samples.

Development of Crystallinity in Turbostratic Boron Nitride Derived from Polymeric Precursors

1991 ◽  
Vol 49 ◽  
pp. 954-955
Author(s):  
X. Qiu ◽  
A. K. Datye ◽  
T. T. Borek ◽  
R. T. Paine
Keyword(s):  
Thermal Treatment ◽  
Boron Nitride ◽  
Diffraction Pattern ◽  
Polymeric Precursors ◽  
Polymer Precursors ◽  
Diffuse Ring

Boron nitride derived from polymer precursors is of great interest for applications such as fibers, coatings and novel forms such as aerogels. The BN is prepared by the polymerization of functionalized borazine and thermal treatment in nitrogen at 1200°C. The BN powders obtained by this route are invariably trubostratic wherein the sheets of hexagonal BN are randomly oriented to yield the so-called turbostratic modification. Fib 1a and 1b show images of BN powder with the corresponding diffraction pattern in fig. 1c. The (0002) reflection from BN is seen as a diffuse ring with occational spots that come from crystals of BN such as those shown in fig. 1b. The (0002) lattice fringes of BN seen in these powders are the most characteristic indication of the crystallinity of the BN.

Effect of thermal treatment on Egyptian rice straw hardboard

1977 ◽  
Vol 27 (1) ◽  
pp. 93-98
Author(s):  
Naim A. Fadl ◽  
Magdi Z. Sefain ◽  
Mohomed Rakha
Keyword(s):  
Thermal Treatment ◽  
Rice Straw
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