超高介电常数钛酸钡/乙炔黑复相材料的制备研究

无机材料学报, 2005, 20(5): 1106-1112. doi: 10.3321/j.issn:1000-324X.2005.05.015

超高介电常数钛酸钡/乙炔黑复相材料的制备研究

黄集权 ^1, , 杜丕一 ^2, , 翁文剑 ^3, , 韩高荣 ^4,

1.浙江大学硅材料国家重点实验室,杭州,310027

2.浙江大学硅材料国家重点实验室,杭州,310027

3.浙江大学硅材料国家重点实验室,杭州,310027

4.浙江大学硅材料国家重点实验室,杭州,310027

基金项目: 国家自然科学基金(50372057,50332030)

关键词：钛酸钡/乙炔黑 , 复相材料 , 超高介电常数 , 渗流效应

Preparation of BaTiO3-Acetylene Black Composite with a Super High Dielectric Constant

研究了乙炔黑/钛酸钡复合材料的烧结条件和介电性能.利用XRD、SEM和介电性能测试仪对材料的物相结构、微观形貌和介电性能进行了观察测定.分析结果表明,这种材料在空气中烧结时,其乙炔黑极易氧化挥发,难以形成钛酸钡/乙炔黑复相体系,但在烧结过程中,乙炔黑的分解挥发会在一定程度上增加液相的出现,促进陶瓷的烧结;在氮气保护下,乙炔黑可以完好地分布于钛酸钡陶瓷体中,获得结构致密的钛酸钡/乙炔黑复相陶瓷.较好的烧结温度范围为1200～1250℃.在渗流阈值附近,钛酸钡/乙炔黑复相材料介电常数值大大提高,当乙炔黑含量在0.8～2.0wt%范围内时,其介电常数达到35000以上,比纯钛酸钡提高约12倍,介电损耗可以控制在0.2～0.7之间,具有一定的使用价值.

参考文献

[1]	Hendriks M G H M, Zyl W E. Materials Research Bulletin, 2001, 36: 2395-2406.
[2]	Dang Z-M, Fan L-Z. Chemical Physics Letters, 2003, 369: 95-100.
[3]	Dang Z-M, Shen Y. Journal of Applied Physics, 2003, 93: 5543.
[4]	Pecharromán C, Moya J S. Advanced Materials, 2000, 12: 294-297.
[5]	Rao Y, Wong C P. 8th International Symposium on Advanced Packaging Materials, 2002. 243-248.
[6]	Pecharromán C, Bartolomes J F. Advanced Materials, 2001, 13: 1541-1544.
[7]	VilcákováJ, Sáha P, Quadrat O. European Polymer Journal, 2002, 38: 2343-2347.
[8]	Xu J W, Wong C P. 9th International Symposium on Advanced Packaging Materials, 2004. 158-170.
[9]	Okamoto T, Koyama M. 2002 Annual Report Conference on Electrical Insulation and Dielectric Phenomena, 2002. 574-577.
[10]	Nakamura S, Tomimura T. 1999 Annual Report Conference on Electrical Insulation and Dielectric Phenomena,1999, 1: 293-296.
[11]	Tomimura T, Tanimoto N. Proceedings of the 7th International Conference on Properties and Applications ofDielectric Materials, 2003, 3: 966-969.
[12]	Duan N, Elshof J E. Journal of the European Ceramic Society, 2001, 21: 2325-2329.
[13]	Ushakov N M, Zapsis K V. Technical Physics Letters, 2003, 29( 11): 936-937.
[14]	Romm F. Advances in Colloid and Interface Science, 2002, 99: 1-11.
[15]	王建国.深圳大学学报,1990,7(1):86-96.
[16]	Kuo C-H, Gupta P K. Acta Metallurgica Et Materialia, 1995, 43 (1): 397-403.
[17]	Tuncer E, Gubanski S M. IEEE Transactions on Dielectrics and Electrical Insulation, 2002, 9: 809-828.
[18]	Wang Y-C, Fu Z-Y. Acta Materiae Compositae Sinica, 2002, 19 (1): 50-53.
[19]	Baskin E M, Entin M V. Microelectronic Engineering, 2000, 50: 335-340.
[20]	Xu P, Li Z-Y. Physica B, 2004, 348: 101-107.

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超高介电常数钛酸钡/乙炔黑复相材料的制备研究

Preparation of BaTiO3-Acetylene Black Composite with a Super High Dielectric Constant

参考文献