Synthesis of Aluminum Titanate Solid Solution by Solid State Reaction of Fine Commercial Al2O3, TiO2 and MgO Powders

2007 ◽  
Vol 336-338 ◽  
pp. 1327-1330 ◽  
Author(s):  
Gang Xu ◽  
Con Jiang Tu ◽  
Wen Jian Weng ◽  
Pi Yi Du ◽  
Ge Shen ◽  
...  
Keyword(s):  
Solid Solution ◽  
Solid State ◽  
Solid State Reaction ◽  
Raw Materials ◽  
Phase Evolution ◽  
Solid State Reaction Method ◽  
Synthesis Temperature ◽  
Aluminum Titanate ◽  
Reaction Method ◽  
Α Al2o3

The synthesis of aluminum titanate solid solution (Al2(1-x)MgxTi1+xO5, x=0, 0.1, 0.2) powders was realized by solid state reaction method using fine commercial α-Al2O3, TiO2 and MgO powders as raw materials. The effect of the introduced amount of MgO on the phase formation of aluminum titanate solid solution was investigated by XRD following the phase evolution. It was revealed that the introduction of MgO strongly affects the formation of Al2(1-x)MgxTi(1+x)O5 solid solution. The easily formed MgTi2O5 acts as the nucleus prompting the formation and lowering the synthesis temperature. The microstructure and properties of the solid solution ceramics were also studied by SEM and measuring the fracture strength and the thermal expansion coefficient.

Spectral properties and luminescence mechanism of red emitting BCNO phosphors

RSC Advances ◽  
2015 ◽  
Vol 5 (51) ◽  
pp. 40864-40871 ◽  
Author(s):  
Xinghua Zhang ◽  
Xiaobo Jia ◽  
Hui Liu ◽  
Zunming Lu ◽  
Xiaokai Ma ◽  
...  
Keyword(s):  
Solid State ◽  
Boric Acid ◽  
Solid State Reaction ◽  
Spectral Properties ◽  
Raw Materials ◽  
Solid State Reaction Method ◽  
Reaction Method

Red emitting (λem = 620 nm) BCNO phosphors were synthesized at 650 °C with solid state reaction method using boric acid and hexamethy lenetetramine as raw materials.

Preparation of Aluminum Oxynitride Powder by Solid State Reaction Method

2008 ◽  
Vol 368-372 ◽  
pp. 435-437 ◽  
Author(s):  
Jin Song Wen ◽  
Tie Cheng Lu ◽  
Jian Qi Qi ◽  
Ji Cheng Zhou ◽  
Wei Pang ◽  
...  
Keyword(s):  
Phase Composition ◽  
Solid State ◽  
Single Phase ◽  
Raw Materials ◽  
Solid State Reaction Method ◽  
Aluminum Oxynitride ◽  
Reaction Method ◽  
Weight Percentage ◽  
Α Al2o3 ◽  
Holding Temperature

Single-phase aluminum oxynitride powders were obtained by varying the holding temperature (T) and the weight percentage of α-Al2O3 in Al2O3 (X) with nano-sized Al2O3 and AlN powders as raw materials. Influences of T and X on the phase composition of obtained powders were studied. The results showed that the content of aluminum oxynitride increased with increasing T or X. When X was 50% and T was 1750°C, obtained powders had better properties than those of others.

Synthesis of Nano-Sized Materials Using Novel Water Assisted Solid State Reaction Method

2018 ◽  
Vol 777 ◽  
pp. 163-167 ◽  
Author(s):  
Kenji Toda ◽  
Tatsuro Kaneko ◽  
Takuya Hasegawa ◽  
Mizuki Watanabe ◽  
Yusuke Abe ◽  
...  
Keyword(s):  
Solid State ◽  
Solid State Reaction ◽  
Reaction Rate ◽  
Raw Materials ◽  
Synthesis Method ◽  
Solid State Reaction Method ◽  
Oxide Materials ◽  
Reaction Method ◽  
Soft Chemical Synthesis ◽  
Nanosized Oxide

We report synthesis of nanosized oxide materials using a novel water assisted solid state reaction (WASSR) method. This novel soft chemical synthesis method is very simple and can synthesize nanoparticle materials just by storing or mixing raw materials added a small amount (typically 10wt%) of water in a reactor at low temperature below 373 K. Combinations of raw materials have a significant influence on the reaction rate.

Solid-State Reaction Synthesis and Mechanism of Lithium Silicates

2010 ◽  
Vol 654-656 ◽  
pp. 2006-2009 ◽  
Author(s):  
Tao Tang ◽  
Huo Gen Huang ◽  
De Li Luo
Keyword(s):  
Solid State ◽  
Solid State Reaction ◽  
Solid State Reaction Method ◽  
Synthesis Temperature ◽  
Molar Ratio ◽  
Lithium Silicate ◽  
Reaction Method ◽  
Lithium Silicates ◽  
Selection For ◽  
Tritium Breeding Materials

Lithium-based ceramics have been recognized as promising tritium breeding-materials for D-T fusion reactor blankets. Lithium silicates, Li4SiO4 and Li2SiO3, are recommended by many ITER research teams as the first selection for the solid tritium breeder. The solid-state reaction method is the most important way to synthesize lithium silicates. In present study, the processes of solid-sate reaction between amorphous silica and Li2CO3 powders was investigaed by TGA/DSC; the lithium silicate powders were synthesized at 700~900°C with different Li:Si molar ratio using solid-state reaction method. The optimized synthesis temperature and the solid-state reaction mechanism were derived on the base of experimental results.

Crystal Structure and Multiferroic Behaviors of Solid Solution (1-y)BiFe(1-x)MnxO3-yBaTiO3

2019 ◽  
Vol 944 ◽  
pp. 526-530
Author(s):  
Mei Mei Wu ◽  
Lin Feng He ◽  
Guo Hai Wei ◽  
Yu Qing Li
Keyword(s):  
Crystal Structure ◽  
Solid Solution ◽  
Solid State ◽  
Solid State Reaction ◽  
Ferroelectric Properties ◽  
Hysteresis Loops ◽  
Solid State Reaction Method ◽  
Weak Ferromagnetism ◽  
Reaction Method ◽  
Mn Doping

It is expected that BiFeO3-based materials will have both ferroelectricity and ferromagnetism. (1-y)BiFe(1-x)MnxO3-yBaTiO3 system was prepared using solid state reaction method. The goal of this study is to uncover the impacts of Mn doping and BaTiO3 content on the crystal structure, magnetism and ferroelectric properties. By forming a solid solution with BaTiO3, stable perovskite BiFeO3 was achieved. The rhombohedrally distorted (1-y)BiFe(1-x)MnxO3-yBaTiO3 showed weak ferromagnetism due to the composition of BaTiO3 and the doping of Mn ion. 0.8BiFe0.9Mn0.1O3-0.2BaTiO3 and 0.7BiFe0.9Mn0.1O3-0.3BaTiO3 ceramics exhibited typical P-E hysteresis loops.

Synthesis of Nb2AlC Material by High Temperature Solid State Reaction Method

2015 ◽  
Vol 655 ◽  
pp. 240-243 ◽  
Author(s):  
Yu Chen Wang ◽  
Zhen Hua Liang ◽  
Gui Hua Peng ◽  
Jian Guang Xu
Keyword(s):  
High Temperature ◽  
Solid State ◽  
Solid State Reaction ◽  
Raw Materials ◽  
Heating Temperature ◽  
Solid State Reaction Method ◽  
Atomic Ratio ◽  
Reaction Method ◽  
X Ray ◽  
Scanning Electron

The Nb2AlC powders were synthesized by high temperature solid state reaction method ,in which, the mixed powders of niobium (Nb), aluminum (Al) , graphite (C) were used as raw materials in an atomic ratio of 2.0:1.1:1.0, respectively. And the heating temperature was adjusted in a range of 1600–1650°C in order to investigate the effects of different preparing conditions on the synthesis of Nb2AlC .The phase composition and morphology of the products were analyzed by X-ray powder diffraction (XRD), scanning electron microscopy (SEM) respectively. The results indicated that all the XRD peaks can be indexed as Nb2AlC with improved crystallization at 1610°C.And the SEM photographs show that the products are layered morphology.The reaction mechanism of Nb2AlC synthesis was also studied.

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