烧结压力对热压掺钙铬酸镧陶瓷组织和性能的影响

doi:10.13251/j.issn.0254-6051.2022.11.012

金属热处理 ›› 2022, Vol. 47 ›› Issue (11): 76-81.DOI: 10.13251/j.issn.0254-6051.2022.11.012

烧结压力对热压掺钙铬酸镧陶瓷组织和性能的影响

赖旭平¹, 严炜文², 王良辉²

1.海军装备部, 四川成都 610036;
2.西南交通大学材料科学与工程学院, 四川成都 610031

收稿日期:2022-06-16 修回日期:2022-09-21 出版日期:2022-11-25 发布日期:2023-01-04
作者简介:赖旭平(1980—),男,工程师,学士,主要研究方向为船舶设备监造,E-mail:7193264@qq.com
基金资助:
国家重点研发计划(2016YFB1200505)

Effect of sintering pressure on microstructure and properties of hot pressed calcium-doped lanthanum chromate ceramic

Lai Xuping¹, Yan Weiwen², Wang Lianghui²

1. Naval Equipment Department, Chengdu Sichuan 610036, China;
2. School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu Sichuan 610031, China

Received:2022-06-16 Revised:2022-09-21 Online:2022-11-25 Published:2023-01-04

摘要/Abstract

摘要： 采用热压法在不同烧结压力下制备了高密度掺钙铬酸镧基陶瓷(La_0.8Ca_0.2Cr_0.98O₃),研究了烧结压力对La_0.8Ca_0.2Cr_0.98O₃陶瓷微观结构、力学性能和导电性能的影响。结果表明,当烧结压力大于58 MPa时,在烧结陶瓷中检测到第二相CaCr₂O₄的存在。CaCr₂O₄在烧结陶瓷中有两种完全不同的形态。烧结压力的提高不仅可以提高铬酸镧基陶瓷的密度,同时能显著抑制晶粒长大。随着烧结压力的增加,弯曲强度和硬度逐渐增加,但是断裂韧度和电导率发生下降。

关键词: 热压烧结, La_0.8Ca_0.2Cr_0.98O₃陶瓷, 高密度, 力学性能, 导电性

Abstract: High density calcium-doped lanthanum chromate ceramic (La_0.8Ca_0.2Cr_0.98O₃) was prepared by hot pressing under different sintering pressures. The effect of sintering pressure on microstructure, mechanical properties and electrical conductivity of La_0.8Ca_0.2Cr_0.98O₃ ceramic was studied. The results show that when the sintering pressure is greater than 58 MPa, the second phase CaCr₂O₄ can be detected in the sintered ceramics. There are two completely different forms of CaCr₂O₄ in the sintered ceramics. The increase of sintering pressure can not only improve the density of lanthanum chromate ceramic, but also inhibit the grain growth significantly. With the increase of sintering pressure, the flexural strength and hardness increase gradually, but the fracture toughness and conductivity decrease.

Key words: hot pressing sintering, La_0.8Ca_0.2Cr_0.98O₃ ceramic, high density, mechanical properties, conductivity

中图分类号:

TG132.2⁺4

赖旭平, 严炜文, 王良辉. 烧结压力对热压掺钙铬酸镧陶瓷组织和性能的影响[J]. 金属热处理, 2022, 47(11): 76-81.

Lai Xuping, Yan Weiwen, Wang Lianghui. Effect of sintering pressure on microstructure and properties of hot pressed calcium-doped lanthanum chromate ceramic[J]. Heat Treatment of Metals, 2022, 47(11): 76-81.

参考文献

[1]孙良成, 朱新德, 李胜利, 等. 掺钙铬酸镧显微组织, 性能与制备工艺的关系[J]. 稀土, 2005, 26(1): 4.
Sun Liangcheng, Zhu Xinde, Li Shengli, et al. Dependence of microstructure and properties on preparation process for Ca-doped LaCrO₃[J]. Chinese Rare Earths, 2005, 26(1): 4.
[2]张昂. LaCrO₃基导电材料的研制[J]. 陶瓷工程, 1996(1): 13-16.
Zhang Ang. The development of lanthanum chromite conductor and the experiment in heating[J]. Ceramics Science and Art, 1996(1): 13-16.
[3]Paulik S W, Baskaran S, Armstrong T R. Mechanical properties of calcium- and strontium-substituted lanthanum chromite[J]. Journal of Materials Science, 1998, 33(9): 2397-2404.
[4]Homma K, Nakamura F, Ohba N, et al. Improvement of sintering property of LaCrO₃ system by simultaneous substitution of Ca and Sr[J]. Journal of the Ceramic Society of Japan, 2007, 115: 81-84.
[5]Bhatt H, Bahadur J, Deo M N, et al. Effects of calcination on microscopic and mesoscopic structures in Ca- and Sr-doped nano-crystalline lanthanum chromites[J]. Journal of Solid State Chemistry, 2011, 184(1): 204-213.
[6]Weber W J, Griffin C W, Bates J L. Effects of cation substitution on electrical and thermal transport properties of YCrO₃ and LaCrO₃[J]. Journal of the American Ceramic Society, 1987, 70(4): 265-270.
[7]Simner S P, Hardy J S, Stevenson J W. Sintering and properties of mixed lanthanide chromites[J]. Journal of the Electrochemical Society, 2001, 148(4): 351-360.
[8]Sakai N, Kawada T, Yokokawa H, et al. Thermal expansion of some chromium deficient lanthanumchromites[J]. Solid State Ionics, 1990, 40-41: 394-397.
[9]Sakai N, Kawada T, Yokokawa H, et al. Liquid-phase-assisted sintering of calcium-doped lanthanumchromites[J]. Journal of the American Ceramic Society, 2010, 76: 609-616.
[10]Hu H, Shi M, Yang Y, et al. Further insight into the formation and oxidation of CaCr₂O₄ during solid fuel combustion[J]. Environmental Science and Technology, 2018, 52(4): 2385-2391.
[11]Mori M, Hiei Y, Sammes N M. Sintering behavior of Ca- or Sr-doped LaCrO₃ perovskites including second phase of AECrO₄ (AE=Sr, Ca) in air[J]. Solid State Ionics, 2000, 135(1-4): 743-748.
[12]Onuma S, Miyoshi S, Yashiro K, et al. Phase stability of La_1-xCa_xCrO_3-δ in oxidizing atmosphere[J]. Journal of Solid State Chemistry, 2003, 170(1): 68-74.
[13]Liu L, Ong K P, Wu P, et al. Electrical conductivity and performance of doped LaCrO₃ perovskite oxides for solid oxide fuel cells[J]. Journal of Power Sources, 2008, 176(1): 82-89.
[14]Ouyang J H, Sasaki S, Murakami T, et al. Spark-plasma-sintered ZrO₂ (Y₂O₃)-BaCrO₄ self-lubricating composites for high temperature tribological applications[J]. Ceramics International, 2005, 31(4): 543-553.
[15]Kaiser A, Sommer B, Woermann E. The system CaO- “CaCr₂O₄”-CaAl₂O₄ in air and under mildly reducing conditions[J]. Journal of the American Ceramic Society, 1992, 75(6): 1463-1471.
[16]Sakai N, Kawada T, Yokokawa H, et al. Sinterability and electrical conductivity of calcium-doped lanthanum chromites[J]. Journal of Materials Science, 1990, 25(10): 4531-4534.
[17]Chick L A, Liu J, Stevenson J W, et al. Phase transitions and transient liquid-phase sintering in calcium-substituted lanthanum chromite[J]. Journal of the American Ceramic Society, 1997, 80(8): 2109-2120.
[18]Bhaumik S K, Divakar C, Singh A K, et al. Synthesis and sintering of TiB₂ and TiB₂-TiC composite under high pressure[J]. Materials Science and Engineering A, 2000, 279(1/2): 275-281.
[19]Sakai N, Yamaji K, Horita T, et al. Chromium diffusion in lanthanum chromites[J]. Solid State Ionics, 2000, 135(1-4): 469-474.
[20]Hashimoto S, Yamaguchi A, Takahashi Y. Growth and characterization of needle-like β-CaCr₂O₄ crystals[J]. Materials Research Bulletin, 1997, 32(11): 1593-1602.
[21]Wei G C, Becher P F. Development of SiC-whisker-reinforced ceramics[J]. American Ceramic Society Bulletin, 1985, 64(2): 298-304.
[22]Carter J D, Nasrallah M M, Anderson H U. Liquid phase behaviour in nonstoichiometric calcium-doped lanthanum chromites[J]. Journal of Materials Science, 1996, 31(1): 157-163.
[23]Hall E O. The deformation and ageing of mild steel: III discussion of results[J]. Proceedings of the Physical Society, 1951, 64(9): 747.
[24]Sauti G, Can A, McLachlan D S, et al. The AC conductivity of liquid-phase-sintered silicon carbide[J]. Journal of the American Ceramic Society, 2007, 90(8): 2446-2453.
[25]Volz E, Roosen A, Hartung W, et al. Electrical and thermal conductivity of liquid phase sintered SiC[J]. Journal of the European Ceramic Society, 2001, 21(10/11): 2089-2093.
[26]Chen K C, Peterson E J, Thoma D J. HfCo₂ Laves phase intermetallics—Part I: Solubility limits and defect mechanisms[J]. Intermetallics, 2001, 9(9): 771-783.
[27]Cumming D J, Kilner J A, Skinner S. Structural properties of Ce-doped strontium titanate for fuel cell applications[J]. Journal of Materials Chemistry, 2011, 21(13): 5021-5026.

烧结压力对热压掺钙铬酸镧陶瓷组织和性能的影响

Effect of sintering pressure on microstructure and properties of hot pressed calcium-doped lanthanum chromate ceramic

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