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Self-propagating High-temperature Synthesis of TiC-SiC Coated Graphite Flakes and Its Effect on Properties of Al2O3-C Refractories
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Xing CHEN, Yun REN, Jiyuan LUO, Xiaochuan CHONG, Donghai DING, Guoqing XIAO
Journal of the Chinese Ceramic Society | 2021, 49(4) : 799 - 806
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Journal of the Chinese Ceramic Society | 2021, 49(4): 799-806
Self-propagating High-temperature Synthesis of TiC-SiC Coated Graphite Flakes and Its Effect on Properties of Al2O3-C Refractories
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Xing CHEN, Yun REN, Jiyuan LUO, Xiaochuan CHONG, Donghai DING, Guoqing XIAO
Affiliations
  • College of Materials Science and Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China

    • CHEN Xing (1995-), male, Master candidate. E-mail:

About Author:

CHEN Xing (1995-), male, Master candidate. E-mail:

Published: 2021-04-20 doi: 10.14062/j.issn.0454-5648.20200763
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TiC/SiC coated natural flake graphite was used as a new carbon source of low carbon Al2O3-C refractories which was prepared by self-propagating high-temperature synthesis (SHS) using Ti, Si and GF as raw materials. The phase composition of the products was characterized by X-ray diffraction and the microstructure as well as the element distribution were studied via a scanning electron microscopy coupled with an energy dispersive spectroscopy. The effects of the amount of graphite on the reaction were studied. The results show that the maximum amount of GF added is 38.6% (mass fraction) under a self-sustained combustion wave, and a continuous, complete TiC-SiC coating layer with a uniform thickness (about 360 nm) is synthesized on the GF surface. The effects of the amount of the coated graphite on the properties of low carbon Al2O3-C refractories were invetigated. The results revel that the Al2O3-C refractory shows the optimal properties when 3% (mass fraction) coated graphite is used: the lowest apparent porosity (12.9%), the highest cold modulus of rupture (20.7 MPa), and the thickness of oxide decarburization layer and the erosion depth of slag are reduced by 41.8% and 57.1%, respectively.

self-propagating high-temperature synthesis  /  titanium carbide silicon carbide coating  /  low carbon aluminum carbon refractories  /  graphite flakes  /  apparent porosity
陈兴, 任耘, 骆吉源, 种小川, 丁冬海, 肖国庆. 自蔓延高温合成TiC-SiC包覆鳞片石墨及其对Al2O3-C耐火材料性能的影响. 硅酸盐学报, 2021 , 49 (4) : 799 -806 . DOI: 10.14062/j.issn.0454-5648.20200763
Xing CHEN, Yun REN, Jiyuan LUO, Xiaochuan CHONG, Donghai DING, Guoqing XIAO. Self-propagating High-temperature Synthesis of TiC-SiC Coated Graphite Flakes and Its Effect on Properties of Al2O3-C Refractories[J]. Journal of the Chinese Ceramic Society, 2021 , 49 (4) : 799 -806 . DOI: 10.14062/j.issn.0454-5648.20200763
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Year 2021 volume 49 Issue 4
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Article Info
doi: 10.14062/j.issn.0454-5648.20200763
  • Receive Date：2020-10-10
  • Online Date：2026-10-30
  • Published：2021-04-20
Article Data
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History
  • Received：2020-10-10
  • Revised：2020-10-23
Funding
Affiliations
    College of Materials Science and Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China

Corresponding:

REN Yun (1967-), female, Associate Professor. E-mail:
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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