A Novel method of synthesis of high purity nano plated boron carbide powder by a solid-state reaction of poly (vinyl alcohol) and boric acid

2017 ◽  
Vol 43 (13) ◽  
pp. 10554-10558 ◽  
Author(s):  
Nazar Shawgi ◽  
SanXi Li ◽  
Song Wang
2017 ◽  
Vol 82 (2) ◽  
pp. 450-457 ◽  
Author(s):  
Nazar Shawgi ◽  
San Xi Li ◽  
Song Wang ◽  
Zan Wang ◽  
Ya Nan Nie

2008 ◽  
Vol 368-372 ◽  
pp. 683-685
Author(s):  
Cheng Wei Hao ◽  
Bo Lin Wu ◽  
Ji Yan Li

Ammonium aluminium carbonate hydroxide (AACH), with a small quantity of γ-AlOOH, was synthesized through solid-state reaction at room temperature using AlCl3·6H2O and NH4HCO3 as raw materials and polyethylene glycol (PEG-10000) as the dispersant. After calcined at 1100°C for 1.5h, α-Al2O3 powders with primary particle sizes of 20~30nm were obtained. The crystal phase, particle size and morphology of the high-purity ultrafine α-Al2O3 were characterized. The results showed that a small quantity of γ-AlOOH in the AACH decomposed and formed crystal seeds. The presence of crystal seeds reduced the nucleation activation energy and therefore reduced the phase transformation temperature.


2016 ◽  
Vol 109-111 ◽  
pp. 1739-1743 ◽  
Author(s):  
Kiyoto Shin-mura ◽  
Yu Otani ◽  
Seiya Ogawa ◽  
Eiki Niwa ◽  
Takuya Hashimoto ◽  
...  

1995 ◽  
Vol 28 (19) ◽  
pp. 6677-6679 ◽  
Author(s):  
Masatoshi Kobayashi ◽  
Isao Ando ◽  
Takahiro Ishii ◽  
Shigetoshi Amiya

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