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Textured SiAlON Ceramic with Centripetal Grain Alignment
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Shuiqing XIAO1, Dawang TAN1, 2, Wei LI1, Weiming GUO2, Huatay LIN2
Journal of the Chinese Ceramic Society | 2023, 51(12) : 3144 - 3151
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Journal of the Chinese Ceramic Society | 2023, 51(12): 3144-3151
• Research Articles •
Textured SiAlON Ceramic with Centripetal Grain Alignment
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Shuiqing XIAO1, Dawang TAN1, 2, Wei LI1, Weiming GUO2, Huatay LIN2
Affiliations
  • 1.School of Electromechanical Engineering, Lingnan Normal University, Zhanjiang 524048, China
  • 2.School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou 510006, China

    • XIAO Shuiqing (1974-), male, Ph.D., Lecturer. E-mail:

About Author:

XIAO Shuiqing (1974-), male, Ph.D., Lecturer. E-mail:

Published: 2023-09-11 doi: 10.14062/j.issn.0454-5648.20230406
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A textured SiAlON ceramic with a centripetal grain alignment was obtained via sinter-forging through outer diameter strain ring compression using spark plasma heating. The microstructure, texturing degree and anisotropy of mechanical properties of the ceramic were investigated. The results show that the c-axis (i.e., long axis) of the rod-like SiAlON grains is parallel to the radial direction of the cylindrical sample, forming a centripetal grain alignment. The average included angle between the c-axis and radial direction is 19.2° and 9.9° on the plane perpendicular to pressing direction and parallel to radial direction, respectively. The degree of centripetal texture is 0.79. The hardness on the plane perpendicular to pressing direction is 12% greater than that on the plane perpendicular to radial section, reaching 17.85 GPa. The flexural strength with fracture plane perpendicular to radial section is 57% greater than that with fracture direction parallel to radial direction, which is 1 341 MPa. The fracture toughness with crack propagation perpendicular to radial section is 75% higher than that with crack direction parallel to radial direction, which is 6.27 MPa·m1/2.

SiAlON  /  texture  /  centripetal alignment  /  anisotropy
肖水清, 谭大旺, 李卫, 郭伟明, 林华泰. 晶粒向心取向织构化SiAlON陶瓷. 硅酸盐学报, 2023 , 51 (12) : 3144 -3151 . DOI: 10.14062/j.issn.0454-5648.20230406
Shuiqing XIAO, Dawang TAN, Wei LI, Weiming GUO, Huatay LIN. Textured SiAlON Ceramic with Centripetal Grain Alignment[J]. Journal of the Chinese Ceramic Society, 2023 , 51 (12) : 3144 -3151 . DOI: 10.14062/j.issn.0454-5648.20230406
Appendix
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Year 2023 volume 51 Issue 12
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Article Info
doi: 10.14062/j.issn.0454-5648.20230406
  • Receive Date：2023-06-13
  • Online Date：2026-10-19
  • Published：2023-09-11
Article Data
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History
  • Received：2023-06-13
  • Revised：2023-06-28
Funding
Affiliations
    1.School of Electromechanical Engineering, Lingnan Normal University, Zhanjiang 524048, China
    2.School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou 510006, China

Corresponding:

TAN Dawang (1991-), male, Ph.D., Lecturer. 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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