颗粒级配对固相烧结碳化硅陶瓷的影响

doi:10.15541/jim20180072

无机材料学报 ›› 2018, Vol. 33 ›› Issue (11): 1167-1172.DOI: 10.15541/jim20180072

颗粒级配对固相烧结碳化硅陶瓷的影响

邢媛媛^1,2, 吴海波², 刘学建², 黄政仁²

1. 中国科学院大学, 北京100049;
2. 中国科学院上海硅酸盐研究所, 高性能陶瓷和超微结构国家重点实验室, 上海200050

收稿日期:2018-02-08 修回日期:2018-06-12 出版日期:2018-11-16 网络出版日期:2018-10-20
作者简介:刑媛媛(1991-), 女, 硕士研究生. E-mail: xingyuanyuan@student.sic.ac.cn
基金资助:
国家重点研发计划(2017YFB0306400);上海市青年科技英才扬帆计划(17YF1421600);太仓市大院大所创新引领专项计划(TC2017DYDS24);中国科学院上海硅酸盐研究所所创新重点项目(Y62ZC2120G)

Grain Composition on Solid-state-sintered SiC Ceramics

XING Yuan-Yuan^1,2, WU Hai-Bo², LIU Xue-Jian², HUANG Zheng-Ren²

1. University of Chinese Academy of Sciences, Beijing 100049, China;
2. State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China

Received:2018-02-08 Revised:2018-06-12 Published:2018-11-16 Online:2018-10-20
About author:XING Yuan-Yuan. E-mail: xingyuanyuan@student.sic.ac.cn

摘要/Abstract

摘要：

通过粗细碳化硅粉体的颗粒级配实现了致密固相烧结碳化硅(S-SiC)陶瓷的增强增韧, 系统研究了粗粉(~4.6 µm)加入量对烧结试样的致密化、微结构与力学特性的影响。结果表明: 当粗粉加入量不超过75wt%时, 可制备出相对密度≥98.3%的致密S-SiC陶瓷, 烧结收缩率低至14.5%;引入的粗粉颗粒产生钉扎作用, 显著抑制了S-SiC陶瓷中异常晶粒生长, 形成细小的等轴晶粒, 进而提高了S-SiC陶瓷的抗弯强度。同时, 粗粉颗粒的引入导致S-SiC陶瓷的断裂方式由穿晶断裂转变为穿晶-沿晶复合断裂, 使得S-SiC陶瓷的断裂韧性增强。对于粗粉引入量为65wt%的S-SiC陶瓷, 抗弯强度与断裂韧性分别为(440±35) MPa与(4.92±0.24) MPa•m^1/2, 相比于未添加粗粉的S-SiC陶瓷, 分别提升了14.0%与17.1%。

关键词: 固相烧结碳化硅, 颗粒级配, 微结构, 抗弯强度, 断裂韧性

Abstract:

Strengthening and toughening of dense solid-state-sintered SiC (S-SiC) ceramics was achieved by grain composition of coarse and fine SiC powder, whose median particle sizes were ~4.6 μm and ~0.5 μm, respectively. The fraction effects of coarse SiC powder on densification, microstructures, and mechanical properties of S-SiC ceramics were systematically investigated. High relative densities (higher than 98.3%) were successfully acquired for the S-SiC samples with the fraction of coarse powder less than 75wt%. The linear sintering shrinkage of SiC samples sharply decreased with increasing fraction of coarse powder, with the minimum fraction as low as 14.5%. Moreover, the coarse SiC powder significantly suppressed abnormal grain growth in S-SiC ceramics by Zener pining of grain boundaries. As a result, SiC grains became smaller and equiaxial, which was beneficial for obtaining high flexural strength for S-SiC ceramic. Meanwhile, the introduction of coarse SiC powder induced fracture mode transfer S-SiC ceramic from transgranular type to transgranular-intergranular mixture type, resulting in improved fracture toughness. The S-SiC ceramic added with 65wt% coarse powder achieved an increase of 14.0% in flexural strength ((440±35) MPa) and 17.1% in fracture toughness ((4.92±0.24) MPa·m^1/2).

Key words: S-SiC, grain composition, microstructure, flexural strength, fracture toughness

中图分类号:

TQ174

邢媛媛, 吴海波, 刘学建, 黄政仁. 颗粒级配对固相烧结碳化硅陶瓷的影响[J]. 无机材料学报, 2018, 33(11): 1167-1172.

XING Yuan-Yuan, WU Hai-Bo, LIU Xue-Jian, HUANG Zheng-Ren. Grain Composition on Solid-state-sintered SiC Ceramics[J]. Journal of Inorganic Materials, 2018, 33(11): 1167-1172.

图/表 9

图1 两种不同SiC粉体的粒度分布曲线(a), D50=~0.5 µm (b)和D50=~4.6 µm (c)的SEM照片

Fig. 1 Size distribution curve (a) and morphology pictures of SiC powders with different sizes D50=~0.5 µm (b) and D50= ~4.6 µm (c)

表1 配方编号及粗细粉体比例

Table 1 Formula and the corresponding ratio of fine and coarse SiC powders

Formula	Ratio of coarse SiC powders/wt%	Ratio of fine SiC powders/wt%
C0	0	100
C55	55	45
C60	60	40
C65	65	35
C70	70	30
C75	75	25
C80	80	20

图2 颗粒级配对烧结收缩率(Rs)、密度(D)和相对密度(RD)的影响

Fig. 2 Effects of grain composition on linear shrinkage(Rs), density(D) and relative density(RD)

图3 颗粒级配对S-SiC陶瓷晶粒形貌的影响

Fig. 3 Effect of grain composition on the microstructures of S-SiC ceramics(a, b) C0; (c, d) C65

图4 颗粒级配对S-SiC陶瓷晶界的影响

Fig. 4 Effect of grain composition on the grain boundaries of S-SiC ceramics (a) C0; (b) C65

图5 颗粒级配对S-SiC陶瓷抗弯强度(σf)的影响

Fig. 5 Effect of grain composition on the flexure strength (σf) of S-SiC ceramics

图6 颗粒级配对S-SiC陶瓷维氏硬度(HV)的影响

Fig. 6 Effect of grain composition on the Vickers hardness (HV) of S-SiC ceramics

图7 颗粒级配对S-SiC陶瓷断裂韧性(KIC)的影响

Fig. 7 Effect of grain composition on the fracture toughness (KIC) of S-SiC ceramics

图8 颗粒级配对S-SiC陶瓷断面形貌的影响

Fig. 8 Effect of grain composition on the fracture surfaces of S-SiC ceramics(a) C0; (b) C65

参考文献 20

[1]	SNEAD L L, NOZAWA T, KATOH Y, et al.Handbook of SiC properties for fuel performance modeling. J. Nucl. Mater., 2007, 371(1): 329-377.
[2]	NAKAMURA K, SUZUKI H, OSADA H.Mechanical Seal Device for Use in Water Environment and Sealing Ring Thereof. US20180038487. 2018.
[3]	CROUCH I G, KESHARAJU M, NAGARAJAH R.Characterisation, significance and detection of manufacturing defects in reaction sintered silicon carbide armour materials. Ceram. Int., 2015, 41(9): 11581-11591.
[4]	STEEN M, RANZANI L.Potential of SiC as a heat exchanger material in combined cycle plant. Ceram. Int., 2000, 26(8): 849-854.
[5]	PROCHAZKA S, SCANLAN R M.Effect of boron and carbon on sintering of SiC. J. Am. Ceram. Soc., 1975, 58(1/2): 72.
[6]	CLEGG W J.Role of carbon in the sintering of boron-doped silicon carbide. J. Am. Ceram. Soc., 2000, 83(5): 1039-1043.
[7]	STOBIERSKI L, AGNIESZKA G.Sintering of silicon carbide I: effect of carbon. Ceram. Int., 2003, 29(3): 287-292.
[8]	STOBIERSKI L, AGNIESZKA G.Sintering of silicon carbide II: effect of boron. Ceram. Int., 2003, 29(4): 355-361.
[9]	MAGNANI G, BRENTARI A, BURRESI E, et al.Pressureless sintered silicon carbide with enhanced mechanical properties obtained by the two-step sintering method. Ceram. Int., 2014, 40(1): 1759-1763.
[10]	RAY D A, KAUR S, CUTLER R A, et al.Effect of additives on the activation energy for sintering of silicon carbide. J. Am. Ceram. Soc., 2008, 91(4): 1135-1140.
[11]	RAY D A, KAUR S, CUTLER R A, et al.Effects of additives on the pressure-assisted densification and properties of silicon carbide. J. Am. Ceram. Soc., 2008, 91(7): 2163-2169.
[12]	DATTA M S, BANDYOPADHYAY A K, CHAUDHURI B.Sintering of nano crystalline α silicon carbide by doping with boron carbide. Bulletin. Mater. Sci., 2002, 25(3): 181-189.
[13]	MALINGE A, COUPE A, PETITCORPS Y L, et al.Pressureless sintering of beta silicon carbide nanoparticles. J. Eur. Ceram. Soc., 2012, 32(16): 4393-4400.
[14]	KUECK A M, JONGHE L C D. Two-stage sintering inhibits abnormal grain growth during β to α transformation in SiC. J. Eur. Ceram. Soc., 2008, 28(11): 2259-2264.
[15]	LI Y, WU H, KIM H N, et al.Simultaneously enhanced toughness and strain tolerance of SiC-based ceramic composite by in-situ formation of VB2, particles. J. Eur. Ceram. Soc., 2017, 37(1): 399-405.
[16]	LIU S, HA Z.Prediction of random packing limit for multimodal particle mixtures.Powder Technol., 2002, 126(3): 283-296.
[17]	ZHENG J, CARLSON W B, REED J S.The packing density of binary powder mixtures. J. Eur. Ceram. Soc., 1995, 15(5): 479-483.
[18]	LIU X, YUAN F, WEI Y.Grain size effect on the hardness of nanocrystal measured by the nanosize indenter. Appl. Surf. Sci., 2013, 279(15): 159-166.
[19]	RICE R W, WU C C, BOICHELT F.Hardness-grain-size relations in ceramics. J. Am. Ceram. Soc., 2010, 77(10): 2539-2553.
[20]	KRELL A, BLANK P.Grain size dependence of hardness in dense submicrometer alumina. J. Am. Ceram. Soc., 2010, 78(4): 1118-1120.

颗粒级配对固相烧结碳化硅陶瓷的影响

Grain Composition on Solid-state-sintered SiC Ceramics

RichHTML

PDF (PC)

可视化

被引次数

摘要/Abstract

引用本文

使用本文

图/表 9

参考文献 20

相关文章 15

编辑推荐

Metrics

本文评价

[1]	贺丹琪, 魏明旭, 刘蕤之, 汤志鑫, 翟鹏程, 赵文俞. 一步法制备重费米子YbAl₃热电材料及其性能提升[J]. 无机材料学报, 2023, 38(5): 577-582.
[2]	夏乾, 孙是昊, 赵义亮, 张翠萍, 茹红强, 王伟, 岳新艳. 碳化硼颗粒级配对硅反应结合碳化硼复合材料结构与性能的影响[J]. 无机材料学报, 2022, 37(6): 636-642.
[3]	洪督, 牛亚然, 李红, 钟鑫, 郑学斌. 等离子喷涂TiC-Graphite复合涂层摩擦磨损性能[J]. 无机材料学报, 2022, 37(6): 643-650.
[4]	徐谱昊, 张相召, 刘桂武, 张明芬, 桂新易, 乔冠军. Al-Ti合金钎焊SiC陶瓷接头界面微观结构与力学性能[J]. 无机材料学报, 2022, 37(6): 683-690.
[5]	李萌, 黄海露, 吴甲民, 刘春磊, 吴亚茹, 张景贤, 史玉升. 浆料固相含量对数字光处理成形Si₃N₄陶瓷性能的影响[J]. 无机材料学报, 2022, 37(3): 310-316.
[6]	黄龙之, 殷杰, 陈晓, 王新广, 刘学建, 黄政仁. 低黏结剂含量SiC素坯的选区激光烧结[J]. 无机材料学报, 2022, 37(3): 347-352.
[7]	王为得, 陈寰贝, 李世帅, 姚冬旭, 左开慧, 曾宇平. 以YbH₂-MgO体系为烧结助剂制备高热导率高强度氮化硅陶瓷[J]. 无机材料学报, 2021, 36(9): 959-966.
[8]	马德隆, 包亦望, 万德田, 邱岩, 郑德志, 付帅. 陶瓷薄基板材料裂纹预制与断裂韧性评价[J]. 无机材料学报, 2021, 36(7): 733-737.
[9]	孙鲁超, 周翠, 杜铁锋, 吴贞, 雷一明, 李家麟, 苏海军, 王京阳. 光悬浮区熔定向凝固Al₂O₃/Er₃Al₅O₁₂和Al₂O₃/Yb₃Al₅O₁₂共晶陶瓷的制备与性能研究[J]. 无机材料学报, 2021, 36(6): 652-658.
[10]	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.
[11]	杨以娜, 王冉冉, 孙静. MXenes在柔性力敏传感器中的应用研究进展[J]. 无机材料学报, 2020, 35(1): 8-18.
[12]	张彪, 杨长安, 施佩. 等离子活化烧结制备石墨烯/羟基磷灰石复相生物陶瓷[J]. 无机材料学报, 2018, 33(12): 1355-1359.
[13]	魏菁, 李汉超, 柯培玲, 汪爱英. 不同厚度四面体非晶碳薄膜的高通量制备及表征[J]. 无机材料学报, 2018, 33(11): 1173-1178.
[14]	郑遗凡, 张露露, 王锴, 潘再法. 混合尖晶石型Zn₆Ga₈TiO₂₀:Cr³⁺荧光粉的合成、结构表征与发光性能[J]. 无机材料学报, 2018, 33(1): 9-13.
[15]	梁汉琴, 姚秀敏, 黄政仁, 曾宇平. 液相烧结碳化硅陶瓷的原位研究[J]. 无机材料学报, 2016, 31(4): 443-448.