原位合成TiB2-TiC0.8-SiC复相陶瓷的微观组织与性能研究

doi:10.3724/SP.J.1077.2013.12282

摘要/Abstract

摘要：

利用热压烧结方法原位合成了TiB₂-TiC_0.8-SiC复相陶瓷。通过光学显微镜(OM)、X射线衍射分析仪(XRD)和扫描电子显微镜(SEM)对材料物相组成和微观结构进行表征。研究了热压条件下烧结温度对材料物相组成、结构及力学性能的影响。结果表明: 烧结温度在1700~1950℃范围内, 随着温度的升高, 材料的致密度、抗弯强度和断裂韧性都有显著改善。烧结温度为1900℃可得到完全致密的原位合成TiB₂-TiC_0.8-SiC复相陶瓷, 材料的晶粒发育比较完善, 条状TiB₂和块状TiC_0.8晶粒清晰可见。复合材料的维氏硬度、断裂韧性和弯曲强度分别达到23.6 GPa, (7.0±1.0) MPa·m^1/2和470.9 MPa。当温度达到1950℃时, 由于增强相TiB₂晶粒长大, 材料的强度降低。TiB₂、TiC_0.8与SiC颗粒协同, 通过裂纹偏转、晶粒拔出、晶粒细化等机制对复合材料起到颗粒增强增韧的作用。

关键词: 原位合成, 热压, 复相陶瓷, TiB₂-TiC_0.8-SiC

Abstract:

TiB₂-TiC_0.8-SiC multiphase ceramics were prepared by in-situ hot-pressing sintering. The phase composition and microstructures of the materials were characterized by optical microscope, X-ray diffraction technology and scanning electron microscope. The effects of sintering temperature on the phases, microstructures and mechanical properties of the ceramics were investigated. The results show that with the increase of sintering temperature, density, bending strength and fracture toughness of the ceramics are increasing significantly in the temperature from 1700℃ to 1950℃. Fully densified in-situ TiB₂-TiC_0.8-SiC multiphase ceramics with well-developed and optimized microstructure are obtained after sintered at 1900℃, in which the uniform distribution of lath-shape TiB₂ and bulk TiC_0.8 grains is obvious. The present study shows that Vickers hardness, fracture toughness and flexural strength of the TiB₂-TiC_0.8-SiC multiphase ceramics sintered at 1900℃ are 23.6 GPa, (7.0±1.0) MPa·m^1/2 and 470.9 MPa, respectively. When sintering temperature was up to 1950℃, TiB₂ and TiC_0.8 grains grew up, and therefore the bending strength of multiphase ceramics was reduced. TiB₂,TiC_0.8and SiC particles were incorporated to improve the particulate strength and toughness of composite material by the synergistic action of the mechanisms such as crack deflection, grain's pull-out and fine-grain toughening.

Key words: in-situ synthesis, hot-pressing, multiphase ceramics, TiB₂-TiC_0.8-SiC

中图分类号:

TB332

孙培秋, 朱德贵, 蒋小松, 孙红亮, 夏兆辉. 原位合成TiB₂-TiC_0.8-SiC复相陶瓷的微观组织与性能研究[J]. 无机材料学报, 2013, 28(4): 363-368.

SUN Pei-Qiu, ZHU De-Gui, JIANG Xiao-Song, SUN Hong-Liang, XIA Zhao-Hui. Research on Microstructures and Properties of in-situ Synthesis of TiB₂-TiC_0.8-SiC Multiphase Ceramics[J]. Journal of Inorganic Materials, 2013, 28(4): 363-368.

图/表 7

图1 不同温度烧结获得的TiB2-TiC0.8-SiC复相陶瓷的XRD图谱

Fig. 1 XRD patterns of TiB2-TiC0.8-SiC multiphase ceramics sintered at different temperatures

图2 不同温度热压烧结TiB2-TiC0.8-SiC复相陶瓷的光学显微组织

Fig. 2 Optical micrographs of TiB2-TiC0.8-SiC multiphase ceramics sintered at different temperatures

图3 不同烧结温度制备TiB2-TiC0.8-SiC复相陶瓷SEM背散射形貌和EDS图谱

Fig. 3 Backscattered SEM micrographs and energy dispersive spectroscopy (EDS) spectra of TiB2-TiC0.8-SiC multiphase ceramics sintered at different temperatures

Temper- ature/℃	Relative density /%*	Vickers hardness/GPa	Fracture toughness K_IC/(MPa·m^1/2)
1700	85.5	11.2	5.5±1.0
1800	92.0	18.1	5.6±1.0
1850	97.2	22.4	6.9±1.0
1900	100.6	23.6	7.0±1.0
1950	101.5	24.1	9.1±1.0

图4 TiB2-TiC0.8-SiC复相陶瓷的相对密度、TiB2晶粒尺寸和抗弯强度与烧结温度的关系

Fig. 4 Relationship between relative density, TiB2 grain sizes, bending strength and sintering temperature in the TiB2-TiC0.8-SiC multiphase ceramics

图5 不同烧结温度下TiB2-TiC0.8-SiC复相陶瓷的断口SEM照片

Fig. 5 SEM images of fracture surface of TiB2-TiC0.8-SiC multiphase ceramics sintered at different temperatures

图6 1900℃烧结温度下所得TiB2-TiC0.8-SiC复相陶瓷裂纹扩展路径

Fig. 6 Crack propagation paths of TiB2-TiC0.8-SiC multiphase ceramics sintered at 1900℃

参考文献 23

[1]	Mestral F D, Thevenot F. Ceramic composites: TiB2-TiC-SiC Part І: properties and microstructures in the ternary system. J. Mater. Sci., 1991, 26(20): 5547-5560.
[2]	Vallauri D, Atlas I C, Chrysanthou A. TiC-TiB2 composites: a review of phase relationships, processing and properties. J. Eur. Ceram. Soc., 2008, 28(8): 1697-1713.
[3]	Min X M, Wang T. Chemical bond and property of TiC-TiB2 composites. Mater. Sci. Forum, 2011, 689(64): 64-68.
[4]	Zhao Z M, Zhang L, Liu W Y, et al. Bulk ultrahard compo- sites in the eutectic TiB2-TiC system by SHS under high gravity. Int. J. Self- Propag. High-Temp. Synth., 2009, 18(3): 186-193.
[5]	Cabrero J, Cabrero J, Audubert F, et al. Fabrication and characterization of sintered TiC-SiC composites. J. Eur. Ceram. Soc., 2011, 31(3): 313-320.
[6]	Ghosh J, Mazumdar S, Das M, et al. Microstructural charac- terization of amorphous and nanocrystalline boron nitride prepared by high-energy ball milling. Mater. Res. Bull., 2008, 43(4): 1023-1031.
[7]	Dudina D V, Hulbert D M, Jiang D, et al. In situ boron carbide titanium diboride composites prepared by mechanical milling and subsequent sparking plasma sintering. J. Mater. Sci., 2008, 43(10): 3569-3576.
[8]	Wang H, Wu W, Sun S, et al. Characterization of the structure of TiB2/TiC nanocomposite powders fabricated by high-energy ball milling. Ceram. Int., 2011, 37(7): 2689-2693.
[9]	Qiu L X, Yao B, Ding Z H, et al. Characterization of structure and properties of TiN-TiB2 nanocomposite prepared by ball milling and high pressure heat treatment. J. Alloys Compd., 2008, 456(1): 436-440.
[10]	Barsoum M W, Houng B. Transient plastic phase processing of titanium- boron-carbon composites. J. Am. Ceram. Soc, 1993, 76(6): 1445-1451.
[11]	Luo Z H, Yang R Z, Pan C Z. Preparation and properties of TiC-TiB2 composite ceramic. J. Ceram., 2011, 32(3): 353-355.
[12]	Zhu D G, Yin X D, Xiao C. In situ synthesized TiB2-TiC- SiC ceramic composite. Xinan Jiaotong Daxue Xuebao, 1999, 34(1): 71-74.
[13]	Bucevac D, Boskovic S, Matovic B, et al. Toughening of SiC matrix with in-situ created TiB2 particles. Ceram. Int., 2010, 36(7): 2181-2188.
[14]	Wang W, Lian J B, Ru H Q. Study on synthetic conditions of TiB2/SiC ceramic composite. J. Mater. Metall., 2011, 10(1): 23-29.
[15]	Wang W, Lian J B, Yue X Y, et al. In-situ synthesized TiB2 toughened SiC microstructure and fracture toughness. Dongbei Daxue Xuebao, 2011, 32(11): 1579-1581.
[16]	Gu W, Yang J, Qiu T, et al. In situ synthesized and mechanical properties of (TiB2+TiC)/Ti3SiC2 composites. J. Inorg. Biochem., 2010, 25(10): 224-227.
[17]	孙红亮. 原位合成TiB2-TiCx陶瓷及其氧化性能研究. 成都: 西南交通大学, 2005.
[18]	Jiang J, Zhu D G, Wang L H. In situ synthesis of TiB2-TiCx ceramic matrix composite by hot iosostatic pressing. Xinan Jiaotong Daxue Xuebao, 2004, 39(1): 132-139.
[19]	Brodkin D, Kalidindi S R, Barsoum M W, et al. Microstruc- tural evolution during transient plastic phase processing of titanium carbide-titanium boride composites. J. Am. Ceram Soc, 1996, 79(7): 1945-1952.
[20]	Sun H L, Zhu D G. Microstructures of in-situ TiB2-TiCx multiphase ceramics. J. Ceram., 2005, 26(3): 159-162.
[21]	Murray J L, Liao P K, Spear K E. The B-Ti(boron- titanium) system. BULLAPD, 1986, 7(6): 550-553.
[22]	Wen G, Li S B, Zhang B S, et al. Reaction synthesis of TiB2/TiC composites with enhanced toughness. Acta Mater., 2001, 49(8): 1463-1470.
[23]	Wang G S, Geng L, Zheng Z Z, et al. Effect of compression deformation at temperature the solid-liquid two-phase region on the microstructure and properties of SiCw/6061Al composites. Acta Mater. Compos. Sin., 2000, 17(4): 58-61.

原位合成TiB₂-TiC_0.8-SiC复相陶瓷的微观组织与性能研究

Research on Microstructures and Properties of in-situ Synthesis of TiB₂-TiC_0.8-SiC Multiphase Ceramics

RichHTML

PDF (PC)

可视化

被引次数

摘要/Abstract

引用本文

使用本文

图/表 7

参考文献 23

相关文章 15

编辑推荐

Metrics

本文评价

[1]	王博, 蔡德龙, 朱启帅, 李达鑫, 杨治华, 段小明, 李雅楠, 王轩, 贾德昌, 周玉. SrAl₂Si₂O₈增强BN陶瓷的力学性能及抗热震性能[J]. 无机材料学报, 2024, 39(10): 1182-1188.
[2]	吴东江, 赵紫渊, 于学鑫, 马广义, 由竹琳, 任冠辉, 牛方勇. Al₂O₃-TiC_p复相陶瓷激光定向能量沉积直接增材制造[J]. 无机材料学报, 2023, 38(10): 1183-1192.
[3]	琚印超, 刘小勇, 王琴, 张伟刚, 魏玺. 超高温复相陶瓷基复合材料烧蚀行为研究[J]. 无机材料学报, 2022, 37(1): 86-92.
[4]	梁汉琴, 尹金伟, 左开慧, 夏咏锋, 姚冬旭, 曾宇平. 添加BaTiO₃的热压烧结Si₃N₄陶瓷的力学和介电性能[J]. 无机材料学报, 2021, 36(5): 535-540.
[5]	满鑫, 吴南, 张牧, 贺红亮, 孙旭东, 李晓东. Lu₂O₃-MgO纳米粉体合成及其复相红外透明陶瓷制备[J]. 无机材料学报, 2021, 36(12): 1263-1269.
[6]	李彦瑞,陆有军,刘洋,袁振侠,黄振坤. Si₃N₄-ZrO₂-La₂O₃系统反应合成ZrN及相图构建[J]. 无机材料学报, 2020, 35(7): 822-826.
[7]	金森, 王作通, 杜亚琼, 胡前库, 禹建功, 周爱国. 双A层MAX相Mo₂Ga₂C的热压烧结研究[J]. 无机材料学报, 2020, 35(1): 41-45.
[8]	王椎, 韩建军, 李建强, 李晓禹, 李江涛, 贺刚, 谢俊. 大尺寸La₂O₃-TiO₂-ZrO₂非晶塑性烧结行为[J]. 无机材料学报, 2019, 34(4): 433-438.
[9]	徐晓虹, 田江洲, 吴建锋, 张乾坤, 金昊, 杜怿鑫. Fe₂O₃对原位制备SiC_w/SiC太阳能储热陶瓷的结构与性能的影响[J]. 无机材料学报, 2019, 34(10): 1103-1108.
[10]	孙川, 万春磊, 潘伟, 宗鹏安, 李云凯, 周士猛. 反应烧结B₄C/Al₂O₃复合陶瓷的装甲防护性能研究[J]. 无机材料学报, 2018, 33(5): 545-549.
[11]	李仁意, 李晓禹, 李建强, 赵建玲, 马晓光, 贺刚, 李江涛. 热压烧结法制备大尺寸La₂O₃-TiO₂-SiO₂非晶材料的研究[J]. 无机材料学报, 2017, 32(8): 851-856.
[12]	高姣姣, 姜龙凯, 宋金鹏, 梁国星, 安晶, 谢俊彩, 曹磊, 吕明. TiC含量对WC-TiC-TaC硬质合金材料微观组织及力学性能的影响[J]. 无机材料学报, 2017, 32(8): 891-896.
[13]	褚颖, 李云伟, 吴启兵, 胡静, 田千秋, 户赫龙, 朱永平. 高导电性热电池正极材料Ni-NiCl₂复合物的原位合成与放电性能研究[J]. 无机材料学报, 2016, 31(9): 992-996.
[14]	彭旭, 朱德贵, 李杨绪, 周加敏, 吕振, 郭鹏超. AlN-BN复相陶瓷的热等静压制备与性能研究[J]. 无机材料学报, 2016, 31(5): 535-541.
[15]	黄耀芹, 郑国源, 莫淑一, 何丽秋, 王东生, 龙飞. 液相辅助热压烧结制备Cu(In, Ga)Se₂靶材的研究[J]. 无机材料学报, 2016, 31(10): 1141-1146.