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Nanocarbon-dependent synthesis of one-dimensional bead-chain-like beta-SiC
Zhao, Bin1; Yang, Biyun1; Wang, Tingyu1; Sun, Dongfeng1; Hu, Yongzhen1; Li, Ruixing1; Yin, Shu2; Li, Junping3; Feng, Zhihai3; Duan, Huiping1; Tang, Qing4; Sato, Tsugio2
AbstractThermodynamically, SiO2 should react with carbon to form CO and SiC at and above a temperature of 1515 degrees C. However, this reaction is incomplete at 1550 degrees C, even with the use of metastable reactants, such as amorphous SiO2 and active carbon powders. In contrast, complete decomposition of SiO2 is achieved at 1450 degrees C using nanocarbon powders instead of active carbon. Additionally, to clarify the effects of size and morphology of SiO2 on the SiC product, we synthesized different SiO2 precursors. Experimental results reveal that the effects of porous SiO2 on both the size and morphology of SiC particles are evident, but not a decrease in carbothermal reduction temperature. Nanocarbon powders reduce the temperature required for the reaction and also strongly affect the transformation kinetics. (c) 2013 Elsevier B.V. All rights reserved.
KeywordBeta-sic Crystal Morphology Amorphous Materials Nanocarbon Carbothermal Reduction
WOS HeadingsScience & Technology ; Technology
Indexed BySCI
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
WOS IDWOS:000324083000055
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Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Affiliation1.Beihang Univ, Sch Mat Sci & Engn, Minist Educ, Key Lab Aerosp Mat & Performance, Beijing 100191, Peoples R China
2.Tohoku Univ, Inst Multidisciplinary Res Adv Mat, Aoba Ku, Sendai, Miyagi 9808577, Japan
3.Aerosp Res Inst Mat & Proc Technol, Beijing 100076, Peoples R China
4.Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Zhao, Bin,Yang, Biyun,Wang, Tingyu,et al. Nanocarbon-dependent synthesis of one-dimensional bead-chain-like beta-SiC[J]. POWDER TECHNOLOGY,2013,246(0):487-491.
APA Zhao, Bin.,Yang, Biyun.,Wang, Tingyu.,Sun, Dongfeng.,Hu, Yongzhen.,...&Sato, Tsugio.(2013).Nanocarbon-dependent synthesis of one-dimensional bead-chain-like beta-SiC.POWDER TECHNOLOGY,246(0),487-491.
MLA Zhao, Bin,et al."Nanocarbon-dependent synthesis of one-dimensional bead-chain-like beta-SiC".POWDER TECHNOLOGY 246.0(2013):487-491.
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