B<sub>4</sub>C含量对ZrB<sub>2</sub>陶瓷微观结构及力学性能的影响

摘要
图/表
参考文献
相关文章 (15)

全文: PDF (637 KB) HTML (0 KB)
输出: BibTeX | EndNote (RIS)

摘要针对ZrB₂陶瓷粉末在球磨时易掺入ZrO₂,影响ZrB₂陶瓷烧结致密化的问题,添加B₄C作为烧结助剂,采用无压烧结法制备ZrB₂陶瓷材料,研究B₄C含量(w(B₄C),下同)对材料微观形貌、硬度与抗弯强度的影响。结果表明,B₄C通过与晶粒表面的ZrO₂发生反应,抑制ZrB₂晶粒粗化,减小晶粒尺寸,从而提高烧结致密度。随B₄C含量增加,ZrB₂陶瓷的晶粒尺寸和相对密度逐渐增大,抗弯强度和硬度先升高后降低。当w(B₄C)为7%时,ZrB₂晶粒细小,材料的抗弯强度和硬度(HV)达到最大,分别为242 MPa和12.65 GPa。w(B₄C)增加至9%时,出现晶粒异常长大,材料力学性能下降。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	杜玉辉
	汤振霄
	彭可
	周远明
	易茂中

关键词 ： ZrB₂陶瓷, B₄C含量, 无压烧结, 微观结构, 抗弯强度

Abstract：Aiming at the problem that ZrB₂ ceramics powder were easily mixed with ZrO₂ during ball milling, which affected the sintering denstification of ZrB₂ ceramics, B₄C was introduced as sintering additive, and ZrB₂ ceramics were prepared by pressureless sintering. The effects of B₄C content on the microstructure and mechanical properties of the materials were investigated. The results show that B₄C can inhibit grain coarsening and reduce grain size by reacting with ZrO₂on the grain surface. With the increase of B₄C content, the grain size and relative density of the ZrB₂ ceramics increase gradually, while the flexural strength and hardness first increase and then decrease. When the mass fraction of B₄C is 7%, the grain size of ZrB₂are fine, and the flexural strength and hardness of the material reach the maximum value, which are 242 MPa and 12.65 GPa respectively. As increasing the content of B₄C to 9%, the grains grow abnormally and the mechanical properties decrease.

Key words： ZrB₂ ceramics B₄C content pressureless sintering microstructure flexural strength

收稿日期: 2020-11-26 出版日期: 2021-03-22

ZTFLH:

U465.3

基金资助:装备预研相关基础研究项目(4142202XXXX); 湖南省自然科学基金资助项目(2017JJ2320)

通讯作者: 彭可,副教授,博士。电话：0731-88879422;E-mail: pengkecsu@csu.edu.cn

引用本文:

杜玉辉, 汤振霄, 彭可, 周远明, 易茂中. B₄C含量对ZrB₂陶瓷微观结构及力学性能的影响[J]. 粉末冶金材料科学与工程, 2021, 26(1): 77-83.
DU Yuhui, TANG Zhenxiao, PENG Ke, ZHOU Yuanming, YI Maozhong. Effects of B₄C content on the microstructure and mechanical properties of ZrB₂ ceramics. Materials Science and Engineering of Powder Metallurgy, 2021, 26(1): 77-83.

链接本文:

http://pmbjb.csu.edu.cn/CN/ 或 http://pmbjb.csu.edu.cn/CN/Y2021/V26/I1/77

[1] RIEDELR. Handbook of Ceramic Hard Materials[M]. Weinheim, Germany: Wiley-VCH, 2000: 876-878.
[2] VAN WIE D M, DREWRY J R D G, KING D E, et al. The hypersonic environment: Required operating conditions and design challenges[J]. Journal of Materials Science, 2004, 39(19): 5915-5924.
[3] LEVINE S R, OPILA E J, HALBIG M C, et al.Evaluation of ultra-high temperature ceramics for aeropropulsion use[J]. Journal of the European Ceramic Society, 2001, 22(14/15): 2757-2767.
[4] JACKSON T A, EKLUND D R, FINK A J.High speed propulsion: Performance advantage of advanced materials[J]. Journal of Materials Science, 2004, 39(19): 5905-5913.
[5] MEDRI V, MONTEVERDE F, BALBO A, et al.Comparison of ZrB₂-SiC-ZrC composites fabricated by spark plasma sintering and hot-pressing[J]. Advanced Engineering Materials, 2005, 7(3): 159-163.
[6] QU Qiang, ZHANG Xinghong, MENG Songhe, et al.Reactive hot pressing and sintering characterization of ZrB₂-SiC-ZrC composites[J]. Materials Science and Engineering A, 2008, 491(1/2): 117-123.
[7] OMORI M, TAKEI H.Pressureless sintering of SiC[J]. Journal of the American Ceramic Society, 2010, 65(6): c92-c92.
[8] 张国军, 邹冀, 倪德伟, 等. 硼化物陶瓷: 烧结致密化、微结构调控与性能提升[J]. 无机材料学报, 2012, 27(3): 225-233.
ZHANG Guojun, ZOU Ji, NI Dewei, et al.Boride ceramics: Denstification, microstructure tailoring and properties improvement[J]. Journal of Inorganic Materials, 2012, 27(3): 225-233.
[9] VAJEESTON P, PAVINDRAN P, RAVI C, et al.Electronic structure, bonding, and ground-state properties of AlB₂-type transition-metal diborides[J]. Physical Review B, 2001, 63(4): 045115.
[10] MONTEVERDE F, BELLOSI A, GUICCIARDI S, et al.Processing and properties of zirconium diboride-based composites[J]. Journal of the European Ceramic Society, 2002, 22(3): 279-288.
[11] MONTEVERDE F, BELLOSIA. Effect of the addition of silicon nitride on sintering behaviour and microstructure of zirconium diboride[J]. Scripta Materialia, 2002, 46(3): 223-228.
[12] MONTEVERDE F, BELLOSIA. Development and characterization of metal-diboride-based composites toughened with ultra-fine SiC particulates[J]. Solid State Sciences, 2005, 7(5): 622-630.
[13] SCITI D, BALBO A, BELLOSI A.Oxidation behaviour of a pressureless sintered HfB₂-MoSi₂ composite[J]. Journal of the European Ceramic Society, 2009, 29(9): 1809-1815.
[14] MISHRA S K, SWAPAN K D, AJOY K R, et al.Effect of Fe and Cr addition on the sintering behavior of ZrB₂ produced by self-propagating high-temperature synthesis[J]. Journal of the American Ceramic Society, 2002, 85(11): 2846-2848.
[15] BASU B, RAJUG B, SURIA K.Processing and properties of monolithic TiB₂ based materials[J]. International Materials Reviews, 2013, 51(6): 352-374.
[16] KOKABI V C, SHOBU K, WATANABE T.Studies of the mechanical properties of TiB₂-6%TaB₂-1%CoB-x%mZrO₂[J]. Journal of the European Ceramic Society, 1997, 17(7): 885-890.
[17] BAIK S, BECHER P F.Effect of oxygen contamination on densification of TiB₂[J]. Journal of the American Ceramic Society, 1987, 70(8): 527-530.
[18] DOLE S L, PROCHAZKA S, DOREMUS R H.Microstructural coarsening during sintering of boron carbide[J]. Journal of the American Ceramic Society, 1989, 72(6): 958-966.
[19] 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.
[20] ZHANG S C, HILMAS G E, FAHRENHOLTZ W G.Pressureless sintering of ZrB₂-SiC ceramics[J]. Journal of the American Ceramic Society, 2008, 91(1): 26-32.
[21] ZHANG S C, HILMAS G E, FAHRENHOLTZ W G.Pressureless densification of zirconium diboride with boron carbide additions[J]. Journal of the American Ceramic Society, 2006, 89(5): 1544-1550.
[22] 汤振霄, 彭可, 向秋玲, 等. B₄C颗粒对C/C-SiC复合材料微观结构与力学性能的影响[J]. 粉末冶金材料科学与工程, 2019, 24(6): 542-548.
TANG Zhenxiao, PENG Ke, XIANG Qiuling, et al.Effect of B₄C particles on microstructure and mechanical properties of C/C-SiC composites[J]. Materials Science and Engineering of Powder Metallurgy, 2019, 24(6): 542-548.
[23] FONG M K, NASRULLM A R, MUBARAKA T A, et al.Characterization, thermal and biological properties of PCL/PLA/PEG/N-HA composites[J]. Biointerface Research in Applied Chemistry, 2020,11(2): 9017-9026.
[24] KUSAMA T, OMORI T, SAITO T, et al.Ultra-large single crystals by abnormal grain growth[J]. Nature Communications, 2017, 8(1): 354-354.
[25] HAN Yong, FAN Jinglian, LIU Tao, et al.The effects of ball-milling treatment on the densification behavior of ultra-fine tungsten powder[J]. International Journal of Refractory Metals and Hard Materials, 2011, 29(6): 743-750.
[26] LEE H, SPEYER R F.Hardness and fracture toughness of pressureless-sintered boron carbide (B₄C)[J]. Journal of the American Ceramic Society, 2004, 85(5): 1291-1293.
[27] MALLIK M, SABYASACHI R, RAYA K K, et al.Effect of SiC content, additives and process parameters on densification and structure-property relations of pressure less sintered ZrB₂-SiC composites[J]. Ceramics International, 2013, 39(3): 2915-2932.