Preparation of ZTA/TiC Composite Ceramics Using Blast Furnace Slag as Sintering Aid

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Preparation of ZTA/TiC Composite Ceramics Using Blast Furnace Slag as Sintering Aid

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[1]LU Hongxia,GAO Kai,LI Mingliang,et al.Preparation of ZTA/TiC Composite Ceramics Using Blast Furnace Slag as Sintering Aid[J].Journal of Zhengzhou University (Engineering Science),2020,41(05):8-14.

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Journal of Zhengzhou University (Engineering Science)[ISSN 1671-6833/CN 41-1339/T] Volume: 41卷 Number of periods: 2020 05 Page number: 8-14 Column: Public date: 2020-10-01

Title:: Preparation of ZTA/TiC Composite Ceramics Using Blast Furnace Slag as Sintering Aid

Author(s):: LU Hongxia1; 2; GAO Kai2; LI Mingliang1; WANG Hailong1; 2; 1.School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China; 2.Henan Province Industrial Technology Research Institute of Resources and Materials, Zhengzhou University, Zhengzhou 450001, China

Keywords:: ZTA/TiC composite ceramics; blast furnace slag; crystallization; low temperature sintering; mechanical properties

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DOI:: -

Abstract:: ZTA/TiC composite ceramics were prepared by using 3 μm α-Al2O3 particles as main raw material, supplemented by nano-materials such as Al2O3, ZrO2 and TiC, and industrial waste residue (blast furnace slag) used as sintering aid. The effects of raw material composition and sintering temperature on the phase composition, microstructure and mechanical properties of the materials were studied by X-ray fluorescence spectrometry (XRF), X-ray diffraction (XRD), differential scanning calorimetry (DSC), scanning electron microscope (SEM), three-point bending test and Vickers indentation, respectively. The results showed that addition of 15% nano-Al2O3 and 5% nano-TiC was beneficial to the improvement of the mechanical properties of the composite ceramics. Flexural strength and fracture toughness of such composites sintered at 1 650 ℃ reached 510 MPa and 6.58 MPa·m 1/2, respectively. Existence of intergranular fracture and transgranular fracture led to composite ceramics possessing better comprehensive properties. When the content of blast furnace slag was 4%, the relative density of samples sintered at 1 550 ℃ for 30 min reached 99.5%, and flexural strength and fracture toughness were 555 MPa and 5.20 MPa·m1/2, respectively. Liquid phase produced by blast furnace slag in the sintering process promoted growth of Al2O3 rods and decreased sintering temperature. Furthermore, content of glass phase in the ceramic matrix decreased and ceramic strength increased due to crystallization characteristics of blast furnace slag.

References:: [1] GUIMARAES F A T, SILVA K L, TROMBINI V, et al. Correlation between microstructure and mechanical properties of Al2O3/ZrO2 nanocomposites[J]. Ceramics international, 2009, 35(2): 741-745.
[2] 黄传真, 孙静, 孙高祚,等. ZrO2/Al2O3 陶瓷刀具材料的增韧补强机理分析[J]. 机械工程师, 2003(8): 3-6.
[3] 安然, 肖建中, 夏风. TiO2含量对 ZTA 陶瓷性能的影响[J]. 硅酸盐通报, 2011, 30(1): 191-194.
[4] 薛伟江, 谢志鹏. 低温环境下结构陶瓷的相变、断裂机理与性能的研究进展[J]. 无机材料学报, 2014, 29(4): 337-344.
[5] ECHEBERRIA J, OLLO J, BOCANEGRA-BERNAL M H, et al. Sinter and hot isostatic pressing (HIP) of multi-wall carbon nanotubes (MWCNTs) reinforced ZTA nanocomposite: microstructure and fracture toughness[J]. International journal of refractory metals and hard materials, 2010, 28(3): 399-406.
[6] 赵世柯, 黄校先, 施鹰,等. 改善氧化锆陶瓷材料抗热震性的探讨[J]. 陶瓷学报, 2000, 21(1): 41-45.
[7] 赵威, 王红兵, 陈鹏程, 等. 喷雾造粒制备ZTA复合粉体及其烧结体性能的研究[J]. 稀有金属材料与工程, 2015, 44(增刊1): 749-752.
[8] 钟金豹, 黄传真, 聂乾利. 纳米碳化钛颗粒对纳米氧化锆增韧氧化铝基陶瓷刀具材料的影响[J]. 工具技术, 2011,45(12): 27-30.
[9] ZHU T B, XIE Z P, HAN Y, et al. Microstructure and mechanical properties of ZTA composites fabricated by oscillatory pressure sintering[J]. Ceramics international, 2018, 44(1): 505-510.
[10] NAGA S M, HASSAN A M, AWAAD M, Physical and mechanical properties of Ta2O5 doped zirconia-toughened alumina (ZTA) composites[J]. Ceramics international, 2015, 41(5): 6248-6255.
[11] CHAE J, CHO B. Effect of SiO2, CaCO3 and talc on sintering behavior of ZTA [J]. Journal of ceramic processing research, 2013, 14(2): 210-212.
[12] MA D C, CHEN H T, CHENG X Q, et al. Preparation and properties of ZTA ceramics using blast furnace slag as sintering additives[J]. Materials research express, 2019, 6(6): 065201.
[13] FRANCIS A A, ABDEL RAHMAN M K, DAOUD A. Processing, structures and compressive properties of porous glass-ceramic composites prepared from secondary by-product materials [J]. Ceramics international, 2013, 39(6): 7089-7095.
[14] 卢红霞, 吕泽刚, 程向前,等. 利用废渣一次烧结制备微晶玻璃釉面砖的研究[J]. 郑州大学学报(工学版), 2018, 39(2): 92-96.

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Last Update: 2020-10-23