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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 833Pyrolysis Kinetic Behaviors of ZrB2 Ceramic...

Pyrolysis Kinetic Behaviors of ZrB₂ Ceramic Organic Precursor

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Abstract:

The pyrolysis dynamic process of ZrB₂ organic precursor,soluble in benzene homologues with polycarbosilane, was characterized by means of on-line TG-DSC-FTIR-MS coupling technique. The conversion mechanism of ZrB₂ ceramic was investigated based on EDS, SEM and XRD. The results show that methylamine, methane, acetone and propene were given off before heat treatment at 1000°C, and the pyrolysis product of ZrB₂ precursor existed in the form of ZrO₂, B₂O₃ and amorphous carbon. ZrB₂ crystals are obtained completely by the carbothermal reduction process with the release of carbon dioxide at 1500°C. Key words:ZrB₂ organic precursor, pyrolysis kinetic behavior, carbothermal reduction process.

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Dianchi Advanced Materials Forum 2013

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Periodical:

Advanced Materials Research (Volume 833)

Pages:

142-145

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.833.142

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Online since:

November 2013

Authors:

Ming Wei Chen*, Hai Peng Qiu, Jian Jiao, Wei Gang Zhang, Xu Qian Li, Yu Wang, Shu Ya Gao, Ruo Gu Wang

Keywords:

Carbothermal Reduction Process, Pyrolysis Kinetic Behavior, ZrB₂ Organic Precursor

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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