摘要

为了获得组织与性能优良的BaTiO₃陶瓷，采用宽带激光烧结技术制备了掺杂碱金属离子(Ca²⁺)和稀土元素离子(Y³⁺)的BaTiO₃陶瓷。利用X射线衍射仪(XRD)、扫描电子显微镜(SEM)、热重-差热分析(TG-DTA)、TR-8401振簧式静电计对BaTiO₃陶瓷进行了组织与性能表征。实验结果表明，Ca²⁺ 的掺杂抑制了陶瓷晶粒长大,改善了BaTiO₃的温度稳定性，防止六方相的生成，提高BaTiO₃的居里点；Y³⁺的掺杂使BaTiO₃陶瓷组织致密，降低了BaTiO₃陶瓷的室温电阻率并使BaTiO₃半导体化。

Abstract

To obtain barium titanate ceramics with excellent microstructure and properties, barium titanate ceramics doping alkali metals ion Ca²⁺ and the rare-earth Y³⁺ is synthesized by wide-band laser sintering. By means of scanning electron micrscope (SEM), X-ray diffraction (XRD), thermogravimetry-differential thermalanalysis (TG-DTA) and TR-8401 static-of-spring, the microstructure and properties of barium titanate ceramics are characterized. The experimental results show that Ca²⁺ doped into ceramics, restrains the growth of grain size, improves temperature stability of barium titanate ceramics, prevents the hexagonal phase barium titanate and improves the curie temperature of barium titanate ceramics, while Y³⁺ doped into ceramics, makes the microstructure of barium titanate ceramics be compacted, the room temperature resistivity of barium titanate ceramics be decreased and barium titanate ceramics have characteristics of semiconductor.

补充资料

中图分类号：TG156.99;TQ174

DOI：10.3788/cjl20093609.2409

所属栏目：材料与薄膜

基金项目：贵州省省长基金(黔科教办2008-04)、贵州大学大学生创新性实验计划项目(贵大创字2007-129)资助课题。

收稿日期：2008-10-06

修改稿日期：2008-11-27

网络出版日期：0001-01-01

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联系人作者：刘其斌(qbliu2@263.net)

备注：刘其斌|教授|长期从事激光材料加工的教学和科研等方面的工作|(1965-)，男，侗族，博士。

【1】H. M. O’Bryan, J. Thomson, J. K. Plourde. A new BaO-TiO2 compound with temperature stable high permittivity and low microwave loss[J]. J. Am. Ceram. Soc., 1974, 57(10): 450-453

【2】Z. S. Macedo, A. C. Hernandes. A quantitative analysis of the laser sintering of bismuth titanate ceranmics[J]. Mater. Lett., 2005, 59(27): 3456-3461

【3】Z. S. Macedo, A. C. Hernandes. Laser sintering of Bi4Ti3O12 ferroelectric ceramics [J]. Mater. Lett., 2002, 55(44): 217-220

【4】Lingfei Ji, Yijian Jiang, Wei Wang et al.. Enhancement of the dielectric permittivity of Ta2O5 ceramics by CO2 laser irradiation [J]. Appl. Phys. Lett., 2004, 85(9): 1577-1579

【5】Hong Yongchang. Microstructure and performance of laser remelting Ni-based alloy sprayed-welding layers[J]. Chinese J. Lasers, 2008, 35(9): 1388-1394
洪永昌. 激光重熔镍基合金火焰喷焊层组织及性能[J]. 中国激光, 2008, 35(9): 1388-1394

【6】Gao Yali, Wang Cunshan, Liu Hongbin et al.. Microstructure and properties of AZ91HP magnesium alloy treated by high power laser melting [J]. Chinese J. Lasers, 2007, 34(7): 1019-1024
高亚丽,王存山,刘红宾 等. 高功率激光熔凝AZ91HP镁合金组织和性能[J]. 中国激光, 2007, 34(7): 1019-1024

【7】Zheng Qiguang. Laser Advanced Manufacture[M]. Wuhan: Huazhong University of Science and Technology Press, 2002
郑启光. 激光加工先进技术[M]. 武汉: 华中科技大学出版社, 2002

【8】Lu Xiaofeng, Wang Huaming. Microstructure and wear resistance of a laser melting-deposited γ/NiMo near-eutectic alloy [J]. Chinese J. Lasers, 2007, 34(4): 559-563
陆晓峰,王华明. 激光熔化沉积γ/NiMo近共晶合金的组织与耐磨性[J]. 中国激光, 2007, 34(4): 559-563

【9】Guo wei, Li Lingxia, Wu Xiawan et al.. Effect of doping rare earth on wear voltage and dielectric properties[J]. J. Rare Earth, 2003, 21(2): 209-213
郭炜,李玲霞,吴霞宛 等. 掺杂稀土元素对细晶BaTiO3系统耐压及介电性能的影响[J]. 中国稀土学报, 2003, 21(2): 209-213

【10】Hao Sue, Wei Yongde, Wang Jinfu et al.. Effect of Nd2O3 contents on dielectric properties of BaTiO3 ceramics[J]. Chinese J. Inorg. Chem., 2002, 18(10): 1042-1043
郝素娥,韦永德,王进福 等. Nd2O3 添加量对BaTiO3陶瓷介电性能的影响[J]. 无机化学学报, 2002, 18(10): 1042-1043

引用该论文

Liu Qibin,Qu Wei. Effect of Doping on Microstructure and Properties of BaTiO₃ Ceramics Sintered by Wide-Band Laser[J]. Chinese Journal of Lasers, 2009, 36(9): 2409-2412

刘其斌,曲微. 掺杂对宽带激光烧结BaTiO₃陶瓷组织与性能的影响[J]. 中国激光, 2009, 36(9): 2409-2412

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