β-Sialon/Corundum Composite Refractories by Nitridation Sintering Process

Abstract

Abstract: β-Sialon/corundum composite refractories were prepared by using Al, Si metal powders, Al₂O₃ fine powder, and corundum aggregates as raw materials at
the temperatures lower than 1600℃by nitridation sintering process. It shows that β-Sialon (Si_6-zAl_zO_zN_8-z, corundum, 15R
phase appear in all the resultant products different in the contents of β-Sialon, 15R and the Z value of β-Sialon, even though only β-Sialon and corundum
phases are expected in designed materials. And the Z value of the produced β-Sialon is deviated from the designed value. Such facts were supposed to
be related to the reaction progress. Additionally, these β-Sialon/corundum composite refractories were tested by alkali, molten slag and steel. The results
show that composite refractories of β-Sialon with Z=1.5～2.5 have good alkali resistance and all of the composite refractories have good molten slag and steel resistance.

Key words: Sialon, corundum, composite refractories, nitridation-sintering process

CLC Number:

TB35

LI Ya-Wei,LI Nan,WANG Bin-Yao,LIU Jing,CHEN Fang-Yu. β-Sialon/Corundum Composite Refractories by Nitridation Sintering Process[J]. Journal of Inorganic Materials.

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[2]	GU Hui. Correlation of Intergranular Amorphous Structures on Multi-levelled Phase Relationship in Sialon Ceramics: Retrospect and Prospect [J]. Journal of Inorganic Materials, 2018, 33(2): 147-152.
[3]	SONG Yun-Fei, WANG Shao-Hua, DENG Cheng-Ji, ZHU Hong-Xi, LIU Jian-Peng, DING Jun, YU Chao. Effects and Oxidation Kinetics of Holding Time on the β-Sialon Bonded MgAl₂O₄-C Composites [J]. Journal of Inorganic Materials, 2017, 32(5): 495-501.
[4]	PENG Ben, QIU Gui-Bo, YUE Chang-Sheng, ZHANG Mei, GUO Ming. Controllable Synthesis of One-dimensional β-SiAlON Materials [J]. Journal of Inorganic Materials, 2014, 29(7): 706-710.
[5]	HAO Hong-Shun, XU Li-Hua, ZHAI Wei, ZHANG Zuo-Shun, ZHANG Xiao-Meng, XIE Zhi-Peng. Development of Sialon Ecomaterials Drived from Solid Waste of Containing Silican and Aluminum [J]. Journal of Inorganic Materials, 2010, 25(11): 1121-1127.
[6]	YUE Chang-Sheng,GUO Ming,ZHANG Mei,WANG Xi-Dong,ZHANG Zhi-An,PENG Ben. Controllable Synthesis of High-purity β-SiAlON Powder [J]. Journal of Inorganic Materials, 2009, 24(6): 1163-1167.
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[8]	LIU Zhan-Jie,ZHANG Hai-Jun,ZHONG Xiang-Chong. Relationship between Grain Size Gradient and Sintering Property of Corundum/β-Sialon Composites by Stepwise Regress [J]. Journal of Inorganic Materials, 2005, 20(1): 239-244.
[9]	ZHANG Hai-Jun,LIU Zhan-Jie,ZHONG Xiang-Chong. Thermodynamic Study and Reduction-nitridation Synthesis of O -Sialon from Coal Gangue [J]. Journal of Inorganic Materials, 2004, 19(5): 1129-1137.
[10]	JIANG Jiu-Xin,CHEN Wei-Wu,WANG Pei-Ling,CHENG Yi-Bing,ZHUANG Han-Rui,YAN Dong-Sheng. Synthesis of Slag α-sialon Powder by SHS and Properties of Slag α-sialon Ceramics [J]. Journal of Inorganic Materials, 2004, 19(4): 953-957.
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[13]	HUANG Qing-Wei,WANG Pei-Ling,CHENG Yi-Bing,YAN Dong-Sheng. Preparation of Rod-Like a-Sialon Crystal Particles [J]. Journal of Inorganic Materials, 2002, 17(1): 35-39.
[14]	LIN Ming-Tong,JIANG Dan-Yu,WANG Lin,RUAN Mei-Ling,SHI Jian-Lin. Microstructure and Creep Behavior of a Y-α-β Sialon Composite [J]. Journal of Inorganic Materials, 2001, 16(6): 1113-1120.
[15]	SUN Ji-Long,LING Guo-Ping,XU Sen-Hu,LI Jian. Erosion and Abrasion Behavior of Sialon Ceramic [J]. Journal of Inorganic Materials, 2000, 15(5): 889-896.

β-Sialon/Corundum Composite Refractories by Nitridation Sintering Process

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