Tem Study of Nanostructured Magnesium Aluminate Spinel Phase Formation

2012 ◽  
pp. 165-174
Author(s):  
Jafar F. Al-Sharab ◽  
James Bentley ◽  
Amit Singhal ◽  
Ganesh Skandan ◽  
Frederic Cosandey
Keyword(s):  
Phase Formation ◽  
Spinel Phase ◽  
Magnesium Aluminate ◽  
Magnesium Aluminate Spinel

A Novel Way to Synthesis Magnesium Aluminate Spinel Powders by Polymer Gel Reaction

2012 ◽  
Vol 512-515 ◽  
pp. 600-603 ◽  
Author(s):  
Jiang Feng Tong ◽  
Da Ming Chen
Keyword(s):  
High Purity ◽  
Single Phase ◽  
Raw Materials ◽  
Spinel Phase ◽  
Ultrafine Powder ◽  
Magnesium Aluminate ◽  
Magnesium Aluminate Spinel ◽  
Polymer Gel ◽  
Mullite Phase ◽  
Spinel Powder

In this paper, a fine pure Magnesium aluminate spinel powder was synesised by Gel solid reaction,using Al(NO3)36H2O and Mg(NO3)26H2O as raw materials under given condition. The precursor was formed by polymer gelling.The phase changed according to heating temperatures from 700°C to 900°C.The single phase of Magnesium aluminate spinel was obtained by calcining the precursor at temperatures higher than 900°C. The phase changing process and relationship among calcination parameters, phase composition and image of particle are studied to determine the optimal conditions for the synthesis of fine Magnesium aluminate spinel powder. The powder obtained was characterized by XRD,TEM etc. The results of analysis showed that the ultrafine powder is of spinel phase, high purity, good dispersion.This process for preparing fine Magnesium aluminate spinel powder was very simple and inexpensive.The results of analysis showed that the ultrafine powder was of mullite phase, high purity, good dispersion, and the particle were homogeneous.

scholarly journals Synthesis and characterization of a new ZIF-67@MgAl2O4 nanocomposite and its adsorption behaviour

RSC Advances ◽  
2021 ◽  
Vol 11 (22) ◽  
pp. 13245-13255
Author(s):  
Mehdi Davoodi ◽  
Fatemeh Davar ◽  
Mohammad R. Rezayat ◽  
Mohammad T. Jafari ◽  
Mehdi Bazarganipour ◽  
...  
Keyword(s):  
Room Temperature ◽  
Magnesium Aluminate ◽  
Synthesis And Characterization ◽  
Magnesium Aluminate Spinel ◽  
Adsorption Behaviour ◽  
Zeolitic Imidazolate Framework ◽  
Simple Method

New nanocomposite of zeolitic imidazolate framework-67@magnesium aluminate spinel (ZIF-67@MgAl2O4) has been fabricated by a simple method at room temperature with different weight ratios.

scholarly journals Optical glass-ceramics based on nanosized crystals of magnesium aluminate spinel doped with iron ions

2020 ◽  
Vol 1697 ◽  
pp. 012156
Author(s):  
V Bukina ◽  
O Dymshits ◽  
I Alekseeva ◽  
M Tsenter ◽  
S Zapalova ◽  
...  
Keyword(s):  
Optical Glass ◽  
Glass Ceramics ◽  
Magnesium Aluminate ◽  
Magnesium Aluminate Spinel ◽  
Iron Ions ◽  
Nanosized Crystals

Transparency of zirconia and magnesium aluminate spinel ceramics manufactured by SPS technique

Ifost ◽  
2013 ◽  
Author(s):  
Khasanov Oleg ◽  
Dvilis Edgar ◽  
Kachaev Artem ◽  
Khasanov Alexey ◽  
Polisadova Elena
Keyword(s):  
Magnesium Aluminate ◽  
Magnesium Aluminate Spinel

Flash-sintering of magnesium aluminate spinel (MgAl2O4) ceramics

2016 ◽  
Vol 100 (2) ◽  
pp. 554-562 ◽  
Author(s):  
Hidehiro Yoshida ◽  
Papiya Biswas ◽  
Roy Johnson ◽  
Mantravadi Krishna Mohan
Keyword(s):  
Magnesium Aluminate ◽  
Magnesium Aluminate Spinel ◽  
Flash Sintering ◽  
Spinel Mgal2o4

Performance Studies on In Situ Spinel Solid Solution Bonded Periclase Refractories

2014 ◽  
Vol 633 ◽  
pp. 245-248
Author(s):  
Xin Lin ◽  
Yong Li ◽  
Yan Jing Li ◽  
Jun Jie Zhang ◽  
Chang He Gao ◽  
...  
Keyword(s):  
Solid Solution ◽  
Phase Composition ◽  
Performance Studies ◽  
Magnesium Aluminate ◽  
Spinel Solid Solution ◽  
Magnesium Aluminate Spinel ◽  
Crushing Strength ◽  
Cold Crushing Strength ◽  
Shock Resistance

Specimens were prepared using iron-rich magnesia (3~1 mm、≤1 mm) and high purity magnesia (≤0.088 mm) as the main starting materials, adding tabular alumina at different size (3~2、2~1、≤1 mm) and content:3%、6%、9%、12%、15% to discover the influence of tabular alumina on sample performance. Phase composition and microstructure were also analyzed. The results show that specimen with content of 6% of corundum possessed the best comprehensive performance:apparent porosity 17%, bulk density 2.95 g·cm-3, cold crushing strength 74 MPa, refractoriness under load 1700 °C, heat shock resistance of up to 18 times. The formations of magnesium aluminate spinel and hercynite solid solution were enhanced by Fe ion at high temperatures in the iron-rich magnesia-corundum system at the presence of iron oxides, which are able to largely dissolved in periclase.

Low cost foam-gelcasting preparation and characterization of porous magnesium aluminate spinel (MgAl2O4) ceramics

2016 ◽  
Vol 42 (16) ◽  
pp. 18215-18222 ◽  
Author(s):  
Xiangong Deng ◽  
Junkai Wang ◽  
Jianghao Liu ◽  
Haijun Zhang ◽  
Lei Han ◽  
...  
Keyword(s):  
Low Cost ◽  
Magnesium Aluminate ◽  
Magnesium Aluminate Spinel ◽  
Porous Magnesium ◽  
Spinel Mgal2o4
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