动态热锻制备高性能织构Si<sub>3</sub>N<sub>4</sub>陶瓷

doi:10.19976/j.cnki.43-1448/TF.2025028

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摘要 Si₃N₄陶瓷因其强共价键特性而具有优异的力学性能,但这一特性也使其难以进行二次加工,严重制约了其在工业领域的广泛应用。本研究采用动态热锻(dynamic hot forging, DHF)技术对商用Si₃N₄陶瓷进行加工处理,研究热锻温度对材料微观结构和力学性能的影响。结果表明：在(60±5) MPa的动态压力和1 800 ℃的热锻温度下,Si₃N₄陶瓷展现出最佳力学性能,其硬度达到13.84 GPa,断裂韧性为6.88 MPa·m^1/2,抗弯强度高达925 MPa,各项性能指标均显著优于原始试样。这种性能提升主要归因于两个关键因素,一是热锻过程中气孔等缺陷的消除,二是动态压力诱导产生的结构织构化效应。本研究开发的DHF技术为高性能难加工陶瓷材料的二次加工与强化提供了一种有效的新方法。

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	杜炫浩
	姚曙
	范建业
	郭会敏
	蔡楒泷
	赵玉龙
	赵科
	刘金铃
	刘佃光

关键词 ：热锻, 动态压力, 氮化硅, 织构化, 力学性能

Abstract：Si₃N₄ ceramics exhibit excellent mechanical properties due to their strong covalent bonding characteristics, however, this characteristic makes them difficult to secondary process, severely limiting their widespread industrial applications. In this study, dynamic hot forging (DHF) technology was employed to process commercial Si₃N₄ ceramics, the effects of hot forging temperature on the microstructure and mechanical properties of materials were studied. The results indicate that under a dynamic pressure of (60±5) MPa and a hot forging temperature of 1 800 ℃, the Si₃N₄ ceramics exhibit optimal mechanical properties, with a hardness of 13.84 GPa, a fracture toughness of 6.88 MPa·m^1/2, and a bending strength reaching 925 MPa. All performance metrics significantly surpassing those of the original samples. This performance enhancement is primarily attributed to two key factors: firstly, the elimination of defects such as pores during the hot forging process, and secondly, the structural texturing effect induced by dynamic pressure. The DHF technology developed in this study provides an effective new method for the secondary processing and strengthening of high-performance difficult-to-machine ceramic materials.

Key words： hot forging dynamic pressure silicon nitride texturing mechanical property

收稿日期: 2025-03-21 出版日期: 2025-11-27

ZTFLH:

TB332

基金资助:国家自然科学基金面上项目(52272074,52072201); 中央高校基本科研业务费专项资金资助项目(2682025ZTPY011,2682024GF011); 河南省航空材料与应用技术重点实验室开放基金资助项目(ZHKF-230102,ZHKF-230114)

通讯作者: 刘佃光,副教授,博士。电话：17828499826;E-mail: dianguang@swjtu.edu.cn

引用本文:

杜炫浩, 姚曙, 范建业, 郭会敏, 蔡楒泷, 赵玉龙, 赵科, 刘金铃, 刘佃光. 动态热锻制备高性能织构Si₃N₄陶瓷[J]. 粉末冶金材料科学与工程, 2025, 30(5): 424-432.
DU Xuanhao, YAO Shu, FAN Jianye, GUO Huimin, CAI Silong, ZHAO Yulong, ZHAO Ke, LIU Jinling, LIU Dianguang. Dynamic hot forging preparation of textured Si₃N₄ ceramics with high performance. Materials Science and Engineering of Powder Metallurgy, 2025, 30(5): 424-432.

链接本文:

http://pmbjb.csu.edu.cn/CN/10.19976/j.cnki.43-1448/TF.2025028 或 http://pmbjb.csu.edu.cn/CN/Y2025/V30/I5/424

[1] RILEY F L.Silicon nitride and related materials[J]. Journal of the American Ceramic Society, 2000, 83(2): 245-265.
[2] KLEMM H.Silicon nitride for high-temperature applications[J]. Journal of the American Ceramic Society, 2010, 93(6): 1501-1522.
[3] 鲁欣欣, 刘伟, 李林, 等. MgO-Y₂O₃-Re₂O₃添加对氮化硅陶瓷微观组织及性能的影响[J]. 粉末冶金材料科学与工程, 2019, 24(6): 536-541.
LU Xinxin, LIU Wei, LI Lin, et al.Effects of MgO-Y₂O₃-Re₂O₃ on microstructure and properties of Si₃N₄ ceramics[J]. Materials Science and Engineering of Powder Metallurgy, 2019, 24(6): 536-541.
[4] 刘文勇, 李建斌, 孙振飞, 等. 无压烧结氮化硅陶瓷的致密化过程[J]. 粉末冶金材料科学与工程, 2020, 25(3): 191-196.
LIU Wenyong, LI Jianbin, SUN Zhenfei, et al.Densification process of pressureless sintered silicon nitride ceramics[J]. Materials Science and Engineering of Powder Metallurgy, 2020, 25(3): 191-196.
[5] LEE S H, LEE Y I, KIM Y W, et al.Mechanical properties of hot-forged silicon carbide ceramics[J]. Scripta Materialia, 2005, 52(2): 153-156.
[6] CARMAN A, PERELOMA E, CHENG Y B.Hot forging of a textured α-sialon ceramic[J]. Journal of the American Ceramic Society, 2006, 89(2): 478-483.
[7] CHOI J C, CHOI Y, HUR K D, et al.A study on the forging of spur gears[J]. International Journal of Mechanical Sciences, 1996, 38(12): 1333-1347.
[8] ZHANG W C, LI Z X, HU B, et al.Enhanced thermal conductivity and mechanical properties of extruded Mg-4La-2Al-0.3Mn alloy via hot forging[J]. Materialia, 2024, 34: 102073.
[9] ROH M H, KIM W, KIM Y W, et al.Effect of hot-forging on mechanical properties of silicon carbide sintered with Al₂O₃-Y₂O₃-MgO[J]. Metals and Materials International, 2010, 16(6): 891-894.
[10] LIU X, PEI J H, LIU M J, et al.Microstructure and mechanical properties of textured TiB₂ ceramic fabricated by combination of catalyst and hot-forging[J]. Materials Chemistry and Physics, 2017, 200: 217-222.
[11] HE H T, TIAN H T, HUANG J C, et al.Dynamic creep of Al₂O₃ whisker-reinforced ZrO₂ ceramic composite[J]. Journal of the European Ceramic Society, 2025, 45(2): 116943.
[12] FU L, YU W J, LIU D G.Plastically deforming ZrO₂-SiO₂ dual-phase nanocrystalline ceramics via dynamic hot forging and the associated microstructural changes[J]. Ceramics International, 2024, 50(17): 31451-31460.
[13] HE H T, TIAN H T, HUANG J C, et al.Regulating the microstructures and mechanical properties of Al₂O₃ whisker reinforced ZrO₂ ceramic composite by dynamic hot forging[J]. Ceramics International, 2025, 51(10): 12976-12983.
[14] XIE Z P, LI S, AN L N.A novel oscillatory pressure-assisted hot pressing for preparation of high-performance ceramics[J]. Journal of the American Ceramic Society, 2014, 97(4): 1012-1015.
[15] FAN J Y, LIU D G, ZHAO K, et al.Densification kinetics and mechanism of zirconia ceramics via hot oscillating pressing[J]. Open Ceramics, 2023, 13: 100323.
[16] FAN J Y, YUAN Y, LI J S, et al.Densification and grain growth in oscillatory pressure sintering of alumina toughened zirconia ceramic composites[J]. Journal of Alloys and Compounds, 2020, 845: 155644.
[17] ZHAO K, FENG P Z, TAN J, et al.A new route to fabricate high-performance binderless tungsten carbide: dynamic sinter forging[J]. Journal of the American Ceramic Society, 2023, 106(6): 3343-3350.
[18] LIU D G, DU X H, ZHAO K, et al.Sintering behavior and mechanical properties of β-SiC ceramics under oscillatory pressure[J]. Ceramics International, 2024, 50(1): 1231-1238.
[19] WANG K W, ZHAO K, LIU J L, et al.Interplay of microstructure and mechanical properties of WC-6Co cemented carbides by hot oscillating pressing method[J]. Ceramics International, 2021, 47(14): 20731-20735.
[20] LIU D G, FAN J Y, ZHAO K, et al.Preparation of super-strong ZrO₂ ceramics using dynamic hot forging[J]. Journal of the European Ceramic Society, 2023, 43(2): 733-737.
[21] FAN L, SONG X W, ZHAO P F, et al.Super strong B₄C ceramics prepared by dynamic sinter forging[J]. Journal of the European Ceramic Society, 2023, 43(9): 4209-4214.
[22] 张渤涛, 姚曙, 范建业, 等. 电场辅助动态热锻制备超高韧3YSZ陶瓷[J]. 粉末冶金材料科学与工程, 2024, 29(4): 290-297.
ZHANG Botao, YAO Shu, FAN Jianye, et al.Electric field assisted dynamic hot forging preparation of 3YSZ ceramic with ultrahigh toughness[J]. Materials Science and Engineering of Powder Metallurgy, 2024, 29(4): 290-297.
[23] HE H T, ZHAO R, TIAN H Y, et al.Sintering behavior of alumina whisker reinforced zirconia ceramics in hot oscillatory pressing[J]. Journal of Advanced Ceramics, 2022, 11(6): 893-900.
[24] 何宗倍, 陈放, 刘佃光, 等. 模拟核芯FCM燃料的振荡烧结行为研究[J]. 无机材料学报, 2024, 39(5): 501-508.
HE Zongbei, CHEN Fang, LIU Dianguang, et al.Sintering behavior of simulating core FCM fuel via hot oscillatory pressing[J]. Journal of Inorganic Materials, 2024, 39(5): 501-508.
[25] FAN J Y, ZHAO K, LIU J L, et al.Effect of oscillatory pressure on the dynamic hot forging behavior of zirconia ceramics[J]. Ceramics International, 2025, 51(17): 23425-23431.
[26] PENG B, XU Y X, DU J W, et al.Influence of preliminary metal-ion etching on the topography and mechanical behavior of TiAlN coatings on cemented carbides[J]. Surface and Coatings Technology, 2022, 432: 128040.
[27] SHI Y W, WANG J H, REN Y C, et al.Prediction and fabrication of textured Si₃N₄ ceramics via grain rotation model[J]. Materials & Design, 2024, 245: 113275.
[28] KONDO N, OHJI T, WAKAI F.Strengthening and toughening of silicon nitride by superplastic deformation[J]. Journal of the American Ceramic Society, 1998, 81(3): 713-716.
[29] LI S, XIE Z P, XUE W J, et al.Sintering of high-performance silicon nitride ceramics under vibratory pressure[J]. Journal of the American Ceramic Society, 2015, 98(3): 698-701.
[30] LIU D G, ZHANG X C, FAN J Y, et al.Sintering behavior and mechanical properties of alumina ceramics exposed to oscillatory pressure at different sintering stages[J]. Ceramics International, 2021, 47(16): 23682-23685.
[31] KONDO N, SUZUKI Y, OHJI T.Superplastic sinter-forging of silicon nitride with anisotropic microstructure formation[J]. Journal of the American Ceramic Society, 1999, 82(4): 1067-1069.
[32] LI X, WU J J, HUANG S J, et al.Enhancing thermoelectric properties of Ca₃Co₄O₉ ceramics through oscillatory pressure sintering[J]. Journal of Materials Research and Technology, 2024, 28: 3475-3484.
[33] FAN J Y, REN K, XIA J B, et al.Oscillatory pressure- assisted plastic joining of zirconia ceramics with excellent flexural strength[J]. Journal of the European Ceramic Society, 2024, 44(14): 116668.
[34] 李涛, 张博, 魏智磊, 等. 放电等离子体烧结结合高温热处理制备高强高导热氮化硅陶瓷[J]. 硅酸盐学报, 2024, 52(9): 2934-2941.
LI Tao, ZHANG Bo, WEI Zhilei, et al.High strength and high thermal conductivity Si₃N₄ ceramics prepared by spark plasma sintering combined with high temperature heat treatment[J]. Journal of the Chinese Ceramic Society, 2024, 52(9): 2934-2941.