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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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浸蚀促进BaTiO3单晶的畴变和裂纹扩展的研究
, PP. 297-301
Keywords: BaTiO3单晶,浸蚀,畴变
Abstract:
//金属学报.？2005,41(3).？297~301研究了浸蚀对极化和未极化的BaTiO3单晶中畴变和压痕裂纹扩展的影响.结果表明,对面内极化试样(即极化方向[001],压痕面(100)),用HCl+HF水溶液浸蚀20s,其压痕裂纹的平均长度由(140±17)μm扩展至(211±26)μm,即增长50%,同时压痕裂纹所围的90？畴变区也明显增大;先浸蚀再打压痕和压痕后再浸蚀所得的结果相同.其原因和浸蚀剂分子吸附降低表面能有关.对离面极化试样(即压痕面(001)垂直于极化方向[001]),则浸蚀对其裂纹长度和畴变区基本没有影响.对未极化试样,浸蚀使其裂纹长度从(150±21)μm增至(182±30)μm,即增长约20%,同时畴变区亦增大.
| [1] | Busche M J, Hsia K J. Scr Mater, 2001; 44: 207
|
| [2] | Fang F, Yang W. Mater Lett, 2002; 57: 198
|
| [3] | Yang W. Mechatronic Reliability. Beijing: Tsinghua University Press, 2001: 96 (杨卫.力电失效学.北京:清华大学出版社, 2001:96)
|
| [4] | Geramita A V, Seberry J. Orthogonal Designs: Quadratic Forms and Hadamard Matrices. New York: Marcel Dekker, 1979
|
| [5] | Wang R M, Chu W Y, Gao K W, Su Y J, Qiao L J. Mater Lett, 2004; 58: 1811
|
| [6] | Chu W Y, Qiao L J, Chen Q Z, Gao K W. Fracture and Environment Fracture. Beijing: Science Press, 2000: 10 (褚武扬,乔利杰,陈奇志,高克玮.断裂与环境断裂.北京: 科学出版社,2000:10)
|
| [7] | Wang Y, Chu W Y , Su Y J, Qiao L J. Mater Sci Eng, 2002; B59: 263
|
| [8] | Chantikul P, Anstis G R, Lawn B R, Marshall D B. J Am Ceram Soc, 1981; 64: 539
|
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