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Gas-Phase Combustion Synthesis of Particles of Titania and Alumina with TTIP and AIP in the Premixed Methane Flame
Date Issued
2004
Date
2004
Author(s)
Li, Kuo-Ting
DOI
zh-TW
Abstract
Titania/alumina ceramic powders (TiO2/ Al2O3/ TiO2˙Al2O3) was studied by combustion synthesis as volatilized precursors in premixed CH4+O2+N2 flame. The experiment was used 0.32% titanium precursor (TTIP) under different oxidizer composition conditions. When the molar ratio of oxygen to nitrogen (O2/N2) was 40/60, the result showed that the anatase content was 97.7 wt%. Oppositely, the anatase phase transform to the rutile phase gradually when the molar ratio of oxygen to nitrogen was reducing. Beside the effect of the temperature, the results also showed that oxygen content was the key to control crystalline phase changes.
In similar way, the crystalline phase changes were found in the order of Al2O3-γ→δ→θ→
In similar way, the crystalline phase changes were found in the order of Al2O3-γ→δ→θ→
Subjects
燃燒合成
銳鈦礦
預混甲烷火焰
鋁前置物AIP
金紅石
鈦前置物TTIP
aluminum precursor (AIP)
combustion synthesis
rutile
titanium precursor (TTIP)
premixed CH4 flame
anatase
Type
thesis
File(s)
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Name
ntu-93-R91522304-1.pdf
Size
23.53 KB
Format
Adobe PDF
Checksum
(MD5):b679883e5f41dae9ede7ada8aa449850