烧结助剂Al2O3-Y2O3添加量对无压液相烧结TiC陶瓷结构与性能的影响
Effect of Sintering Additive Al2O3-Y2O3 Addition on Structure and Properties ofTiC Ceramics by Pressureless Liquid Phase Sintering
摘 要
在1 850℃下采用无压液相烧结工艺制备TiC陶瓷,研究了烧结助剂Al2O3-Y2O3(二者物质的量比为1.5)质量分数(0,6%,8%,10%)对TiC陶瓷结构和性能的影响。结果表明:添加烧结助剂后TiC陶瓷中存在TiC相、YAM (Y4Al2O9)相和YAG (Y3Al5O12)相;随着烧结助剂质量分数由0增加到10%,陶瓷的相对密度由94.50%增加到97.86%,开口气孔率由0.77%下降到0.21%,YAM相与YAG相增多并逐渐发生聚集,断裂韧度、维氏硬度与抗弯强度均先升高后降低,当烧结助剂质量分数为6%时,断裂韧度和维氏硬度最大,分别为6.2 MPa·m1/2和19 GPa,当烧结助剂质量分数为8%时,抗弯强度最大,为524 MPa;陶瓷的电阻率均在1.00×10-6~2.00×10-6 Ω·m,烧结助剂的添加对导电性能无明显影响。
Al2O3-Y2O3
无压液相烧结
微观结构
性能
TiC ceramic
Al2O3-Y2O3
pressureless liquid phase sintering
microstructure
property
Abstract
TiC ceramics were prepared by pressureless liquid phase sintering at 1 850 ℃. The effect of the mass fraction (0,6%, 8%,10%) of sintering additive Al2O3-Y2O3 (Al2O3 to Y2O3 molar ratio of 1.5) on the microstructure and properties of TiC ceramics was investigated. The results show that TiC phase, YAM (Y4Al2O9) phase and YAG (Y3Al5O12) phase existed in TiC ceramics after adding sintering additive. With increasing mass fraction of sintering additive from 0 to 10%, the relative density of ceramics increased from 94.50% to 97.86%, the open porosity decreased from 0.77% to 0.21%, the YAM and YAG phases increased and gradually aggregated, and the fracture toughness, Vickers hardness and flexural strength all increased first and then decreased. When the mass fraction of sintering additive was 6%, the fracture toughness and Vickers hardness reached the maximum value of 6.2 MPa·m1/2 and 19 GPa, respectively. When the mass fraction of sintering additive was 8%, the flexural strength reached the maximum value of 524 MPa. The resistivity of ceramics was between 1.00×10-6-2.00×10-6 Ω·m, and the addition of sintering additives affected the electrical conductivity little.
中图分类号 TQ174.75 DOI 10.11973/jxgccl202211009
所属栏目 新材料 新工艺
基金项目 辽宁省自然科学基金计划项目(2019-MS-126);国家重点研发计划项目(2017YFB0310300);国家自然科学基金资助项目(51602041,51772048);装备预先研究项目(41422010905,41422010903)
收稿日期 2021/8/14
修改稿日期 2022/8/30
网络出版日期
作者单位点击查看
备注赵义亮(1996-),男,黑龙江明水人,硕士研究生
引用该论文: ZHAO Yiliang,HUANG Nan,RU Hongqiang,ZHANG Cuiping,YUE Xinyan,LIU Chunming,WANG Wei. Effect of Sintering Additive Al2O3-Y2O3 Addition on Structure and Properties ofTiC Ceramics by Pressureless Liquid Phase Sintering[J]. Materials for mechancial engineering, 2022, 46(11): 55～59
赵义亮,黄楠,茹红强,张翠萍,岳新艳,刘春明,王伟. 烧结助剂Al2O3-Y2O3添加量对无压液相烧结TiC陶瓷结构与性能的影响[J]. 机械工程材料, 2022, 46(11): 55～59
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【2】KOÇ R,FOLMER J S.Carbothermal synthesis of titanium carbide using ultrafine titania powders[J].Journal of Materials Science,1997,32:3101-3111.
【3】VALLAURI D,ATÍAS ADRIÁN I C,CHRYSANTHOU A.TiC-TiB2 composites:A review of phase relationships,processing and properties[J].Journal of the European Ceramic Society,2008,28(8):1697-1713.
【4】WANG L J,JIANG W,CHEN L D.Fabrication and characterization of nano-SiC particles reinforced TiC/SiC nano composites[J].Materials Letters,2004,58(9):1401-1404.
【5】LI Y,KATSUI H,GOTO T.Spark plasma sintering of TiC-ZrC composites[J].Ceramics International,2015,41(5):7103-7108.
【6】FATTAHI M,DELBARI S A,BABAPOOR A,et al.Triplet carbide composites of TiC,WC,and SiC[J].Ceramics International,2020,46(7):9070-9078.
【7】CHAMBERLAIN A L,FAHRENHOLTZ W G,HILMAS G E.Pressureless sintering of zirconium diboride[J].Journal of the American Ceramic Society,2006,89(2):450-456.
【8】CHENG L X,XIE Z P,LIU G W.Spark plasma sintering of TiC ceramic with tungsten carbide as a sintering additive[J].Journal of the European Ceramic Society,2013,33(15/16):2971-2977.
【9】CHAMBERLAIN A L,FAHRENHOLTZ W G,HILMAS G E.Pressureless sintering of zirconium diboride[J].Journal of the American Ceramic Society,2006,89(2):450-456.
【10】SABAHI NAMINI A,AHMADI Z,BABAPOOR A,et al.Microstructure and thermomechanical characteristics of spark plasma sintered TiC ceramics doped with nano-sized WC[J].Ceramics International,2019,45(2):2153-2160.
【11】WANG Z A,DAI H Y,ZOU Y.Effects of nano TiN addition on the microstructure and mechanical properties of TiC based steel bonded carbides[J].Rare Metals,2008,27(1):5-8.
【12】SHON I J,OH H S,LIM J W,et al.Mechanical properties and consolidation of binderless nanostructured (Ti,Cr)C from mechanochemically-synthesized powder by high-frequency induction heating sintering[J].Ceramics International,2013,39(8):9721-9726.
【13】LUO Z L,DU Y,LIU Y L,et al.Phase field simulation of the phase separation in the TiC-ZrC-WC system[J].Calphad,2018,63:190-195.
【14】JUNG J,KANG S.Sintered (Ti,W)C carbides[J].Scripta Materialia,2007,56(7):561-564.
【15】PANIGRAHI B B,CHU M C,BALAKRISHNAN A,et al.Synthesis and pressureless sintering of Ti3SiC2 powder[J].Journal of Materials Research,2009,24(2):487-492.
【16】QIAO Z H,RÄTHEL J,BERGER L M,et al.Investigation of binderless WC-TiC-Cr3C2 hard materials prepared by spark plasma sintering (SPS)[J].International Journal of Refractory Metals and Hard Materials,2013,38:7-14.
【17】KOÇ R,MENG C,SWIFT G A.Sintering properties of submicron TiC powders from carbon coated titania precursor[J].Journal of Materials Science,2000,35:3131-3141.
【18】JUNG J,KANG S.Effect of nano-size powders on the microstructure of Ti(C,N)-xWC-Ni cermets[J].Journal of the American Ceramic Society,2007,90(7):2178-2183.
【19】KWON H,KANG S.Microstructure and mechanical properties of TiC-WC-(Ti,W)C-Ni cermets[J].Materials Science and Engineering:A,2009,520(1/2):75-79.
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【21】ZHANG N,RU H,CAI Q,et al.Investigation of loss weight and densification of SiC Al2O3-Y2O3 ceramic composite on sintering[J].Journal of Rare Earths,2005,23:132-136.
【22】LEE S K,KIM C H.Effects of α-SiC versus β-SiC starting powders on microstructure and fracture toughness of SiC sintered with Al2O3-Y2O3 additives[J].Journal of the American Ceramic Society,1994,77(6):1655-1658.
【23】宋杰光,杜大明,王秀琴,等.ZrB2-YAG-Al2O3复相陶瓷的抗氧化性能[J].机械工程材料,2010,34(5):64-67. SONG J G,DU D M,WANG X Q,et al.Oxidation resistance of ZrB2-YAG-Al2O3 multi-phase ceramics[J].Materials for Mechanical Engineering,2010,34(5):64-67.
【24】FATTAHI M,MOHAMMADZADEH A,PAZHOUHANFAR Y,et al.Influence of SPS temperature on the properties of TiC-SiCw composites[J].Ceramics International,2020,46(8):11735-11742.
【25】GU Y F,LIU J X,XU F F,et al.Pressureless sintering of titanium carbide doped with boron or boron carbide[J].Journal of the European Ceramic Society,2017,37(2):539-547.
【26】高玮,朱孟钦,罗美芳,等.氧化钇湿式球磨过程中的解聚机理研究[J].中国稀土学报,2002,20(增刊2):116-118. GAO W,ZHU M Q,LUO M F,et al.Study of deagglomeration of Y2O3 by wet-milling[J].Journal of the Chinese Rare Earth Society,2002,20(S2):116-118.
【27】关振铎,张中太,焦金生.无机材料物理性能[M].2版.北京:清华大学出版社,2011. GUAN Z D,ZHANG Z T,JIAO J S.Physical properties of inorganic materials[M].Beijing:Tsinghua University Press,2011.
【28】任伟玮,何福坡,伍尚华.YAG对TiCN陶瓷刀具材料力学性能及烧结工艺的影响[J].硅酸盐学报,2018,46(3):388-393. REN W W,HE F P,WU S H.Effect of YAG on mechanical properties and process of TiCN ceramic tool[J].Journal of the Chinese Ceramic Society,2018,46(3):388-393.
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