反应烧结制备Si3N4/SiC复相陶瓷及其力学性能研究

doi:10.3724/SP.J.1077.2014.13469

摘要/Abstract

摘要：

以两种不同配比Y₂O₃/Al₂O₃(A, 2:3; B, 3:1, 总量15 wt%)为烧结助剂, 通过添加不同质量分数的SiC粉体,反应烧结制备了高强度的氮化硅/碳化硅复相陶瓷。并对材料的相组成、相对密度、显微结构和力学性能进行了分析。结果表明: 在1700℃保温2 h情况下, 烧结助剂A 与B对应的样品中α-Si₃N₄相全部转化为β-Si₃N₄; 添加5wt% SiC, 烧结助剂A对应样品的相对密度达到最大值94.8%, 且抗弯强度为521.8 MPa, 相对于不添加SiC样品的抗弯强度(338.7 MPa)提高了约54.1%。SiC能有效改善氮化硅基陶瓷力学性能, 且Si₃N₄/SiC复相陶瓷断裂以沿晶断裂方式为主。

关键词: 反应烧结, Si₃N₄/SiC复相陶瓷, 烧结助剂, SiC含量

Abstract:

With Y₂O₃:Al₂O₃(A 2:3; B 3:1 total amount 15wt%) as sintering additives and SiC as the second phase, high flexural strength Si₃N₄/SiC composite ceramics were prepared via nitridation of Si powder. The phase composition, relative density, microstructure as well as mechanical properties were investigated. The experimental results showed that the α→β-Si₃N₄ phase transformation could be completed at 1700℃ for 2 h with sintering additives A or B. With the sintering additive A and 5wt% SiC addition, the maximum relative density of 94.8% and maximum flexural strength of 521.8 MPa were obtained for the Si₃N₄/SiC composite ceramics. As compared with the specimen without SiC addition which flexural strength was 338.7 MPa, flexural strength of the above mentioned Si₃N₄/SiC composite ceramics was improved by 54.1%. SiC powder can effectively improve the mechanical properties of the specimen and the fracture of Si₃N₄/SiC composite ceramics followed the typical intergranular fractural mode.

Key words: reaction-bonded, Si₃N₄/SiC composite ceramics, sintering additives, SiC content

中图分类号:

TQ174

胡海龙, 姚冬旭, 夏咏锋, 左开慧, 曾宇平. 反应烧结制备Si₃N₄/SiC复相陶瓷及其力学性能研究[J]. 无机材料学报, 2014, 29(6): 594-598.

HU Hai-Long, YAO Dong-Xu, XIA Yong-Feng, ZUO Kai-Hui, ZENG Yu-Ping. Mechanical Properties of Reaction-bonded Si₃N₄/SiC Composite Ceramics[J]. Journal of Inorganic Materials, 2014, 29(6): 594-598.

图/表 6

图1 不同Si3N4/SiC复相陶瓷样品的XRD图谱

Fig. 1 XRD patterns of different Si3N4/SiC composite ceramics

图2 SiC添加量对Si3N4/SiC复相陶瓷相对密度的影响

Fig. 2 Effect of SiC content on the relative density of Si3N4/SiC composite ceramics

图3 不同SiC添加量, 烧结助剂A对应Si3N4/SiC复相陶瓷的断面SEM照片

Fig. 3 SEM fracture surfaces of Si3N4/SiC composite ceramics prepared with additive A and different contents of SiC

图4 不同SiC添加量, 烧结助剂B对应Si3N4/SiC复相陶瓷的断面SEM照片

Fig. 4 SEM fracture surfaces of Si3N4/SiC composite ceramics prepared with B additive and different contents of SiC

图5 (a) 烧结助剂A对应的烧结体A5的SEM照片(插图为对应TEM照片); (b) 烧结助剂B对应的烧结体B0的SEM照片

Fig. 5 (a) SEM image of fracture surface of the sintered sample A5 (Inset is the corresponding TEM image); (b) SEM image of fracture surface of the sintered sample B0

图6 SiC添加量对Si3N4/SiC复相陶瓷抗弯强度的影响

Fig. 6 Effect of SiC content on the flexural strength of Si3N4/SiC composite ceramics with additives A or B

参考文献 24

[1]	RILEY F L. Silicon nitride and related materials. J. Am. Ceram. Soc., 2000, 83(2): 245-265.
[2]	NIHARA K. New Design concept of structural ceramics - ceramic nanocomposites. Nippon Seram Kyo Gak., 1991, 99(10): 974-982.
[3]	STREHLER C, GRAULE T, KUEBLER J, et al. Lifetime and wear behavior of near net shaped Si3N4/SiC wood cutting tools. Int. J. Appl. Ceram. Technol., 2012, 9(2): 280-290.
[4]	LUO F, ZHU D M, SU X L, et al. Properties of hot-pressed of SiC/Si3N4 nanocomposites. Mater. Sci. Eng., 2007, 458(1/2): 7-10.
[5]	SAJGALIK P, HNATKO M, COPAN P, et al. Influence of graphite additives on wear properties of hot pressed Si3N4 ceramics. J. Ceram. Soc. Jpn., 2006, 114(1335): 1061-1068.
[6]	RENDTEL P, RENDTEL A, HUBNER H. Mechanical properties of gas pressure sintered Si3N4/SiC nanocomposites. J. Eur. Ceram. Soc., 2002, 22(12): 2061-2070.
[7]	SANTOS C, KELLY C A, RIBEIRO S, et al. α-SiAlON-SiC composites obtained by gas-pressure sintering and hot-pressing. J. Mater. Process. Technol., 2007, 189(1/2/3): 138-142.
[8]	ZHENG C S, YAN Q Z, XIA M, et al. In situ preparation of SiC/Si3N4-NW composite powders by combustion synthesis. Ceram. Int., 2012, 38(1): 487-493.
[9]	LI J F, SATOMI S, WATANABE R, et al. Fabrication and characterization of SiC rod particulate reinforced reaction-bonded Si3N4 composites. J. Eur. Ceram. Soc., 2000, 20(11): 1795-1802.
[10]	LUO F, ZHU D M, ZHANG H, et al. Properties of reaction- bonded SiC/Si3N4 ceramics. Mater. Sci. Eng. A, 2006, 431(1/2): 285-289.
[11]	YUAN L, JING K Y, ZHANG S W. Fabrication of porous reaction- bonded Si3N4-SiC composites. Adv. Mater. Res., 2011, 391-392: 575-579.
[12]	LI J, YUAN W J, WANG S, et al. Effect of sintering tempera-tures on the reaction-bonded Si3N4/SiC composite ceramics. Adv. Mater. Res., 2011, 399-401: 331-335.
[13]	YANG J, YANG J F, SHAN X Y, et al. Effect of sintering additives on microstructure and mechanical properties of porous silicon nitride ceramics. J. Am. Ceram. Soc., 2006, 89(12): 3843-3845.
[14]	ZHU X W, ZHOU Y, HIRAO K. Effect of sintering additive on the processing and thermal conductivity of intered reaction-bonded Si3N4. J. Am. Ceram. Soc., 2004, 87(7): 1398-1400.
[15]	LEE B T, KIM H D. Effect of sintering additives on the nitridation behavior of reaction-bonded silicon nitride. Mater. Sci. Eng., 2004, A(364): 126-131.
[16]	STREHLER C, BLUGAN G, EHRLE B, et al. Influence of sintering and sintering additives on the mechanical and microstructural characteristics of Si3N4/SiC wood cutting tools. J. Eur. Ceram. Soc., 2010, 30(10): 2109-2115.
[17]	YANG J F, TATSUKI O, SEKINO T, et al. Phase transfomation, microstructure and mechanical properties of Si3N4/SiC composite. J. Eur. Ceram. Soc., 2001, 21(12): 2179-2183.
[18]	SARIN V K. On the α to β phase transformation in silicon ni-tride. Mater. Sci. Eng., 1988, 105-106(1): 151-159.
[19]	YANG J F, TATSUKI O. Influence of yttria-alumina content on sintering behavior and microstructure of silicon nitride ceramics. J. Am. Ceram. Soc., 2000, 83(8): 2094-2096.
[20]	TAGUCHI S P, MOTTA F V, BALESTRA R M, et al. Wetting behaviour of SiC ceramics. II. Y2O3/Al2O3 and Sm2O3/Al2O3. Mater. Lett., 2004, 58(22): 2810-2844.
[21]	SAITO N, KAI K, FURUSHO S, et al. Properties of nitrogen containing yttria-alumina-silica melts and glasses. J. Am. Ceram. Soc., 2003, 86(4): 711-716.
[22]	HIRAO T, NIIHARA K. Microstructure and mechanical prop-erties of Si3N4/SiC composites. Mater. Lett., 1995, 22(5/6): 249-254.
[23]	HEINRICH J, BACKER E, BOHMER M. Hot isostatic pressing of Si3N4 powder compacts and reaction-bonded Si3N4. J. Am. Ceram. Soc., 1988, 71(1): C28-C31.
[24]	COBLE R L, KINGERY W D. Effect of porosity on physical properties of sintered alumina. J. Am. Ceram. Soc., 1956, 39(11): 337-385.

反应烧结制备Si₃N₄/SiC复相陶瓷及其力学性能研究

Mechanical Properties of Reaction-bonded Si₃N₄/SiC Composite Ceramics

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