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| PMN-PT透明陶瓷中气孔和晶界对光散射的影响分析 | |
| 引用本文： | 杨振中,张永成,叶万能,卢朝靖.PMN-PT透明陶瓷中气孔和晶界对光散射的影响分析[J].青岛大学学报(自然科学版),2012,25(1):42-46. |
| 作者姓名： | 杨振中 张永成 叶万能 卢朝靖 |
| 作者单位： | 1. 青岛大学,物理科学学院,山东青岛266071 2. 青岛大学,纤维新材料与现代纺织国家重点实验室培育基地,山东青岛266071 3. 青岛大学,物理科学学院,山东青岛266071;青岛大学,纤维新材料与现代纺织国家重点实验室培育基地,山东青岛266071 |
| 基金项目： | 山东省自然科学杰出青年基金 |
| 摘 要： | 根据Mie和Raleigh-Gans-Debye散射理论,用matlab编程模拟了0.65PMN-0.35PT透明陶瓷中气孔及晶界处双折射对光透过率的影响。结果表明,陶瓷中光的直线透过率和总透过率都随着气孔率的增大而迅速减小,而随着气孔半径的增大先减小后增大;光的直线透过率在气孔尺寸与入射光波长相近时取得最小值;随着晶粒尺寸的增大光的直线透过率单调递减,而总透过率几乎无变化。 |
| 关 键 词： | 透明陶瓷 气孔 晶界 光散射 |
Light Scattering by Residual Pores and Grain Boundaries in Transparent 0.65PMN-0.35PT Ceramics |
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| YANG Zhen-zhong , ZHANG Yong-cheng , YE Wan-neng , LU Chao-jing.Light Scattering by Residual Pores and Grain Boundaries in Transparent 0.65PMN-0.35PT Ceramics[J].Journal of Qingdao University(Natural Science Edition),2012,25(1):42-46. | |
| Authors: | YANG Zhen-zhong ZHANG Yong-cheng YE Wan-neng LU Chao-jing |
| Institution: | a,b (a.College of Physics Science;b.Laboratory of Fiber Materials and Modern Textile, the Growing Base for State Key Laboratory,Qingdao University,Qingdao 266071,China) |
| Abstract: | The effects of the residual pores and birefringence of grain boundaries on the transmission through 0.65PMN-0.35PT electro-optic ceramics were studied with Mie scattering theory and the Raleigh-Gans-Debye model.Results show that both in-line transmission and total forward transmission decrease prominently with the increase of the porosity,while the transmission first decrease and then increase along with the increase of the pore size.The minimum of in-line transmission is achieved when the pore size is close to the wavelength of the incident light.Because of the optical birefringence at the grain boundaries,the in-line transmission decreases monotonically with the increase of grain size,and the total forward transmission is less sensible to the grain size. |
| Keywords: | transparent ceramics residual pores grain boundaries light scattering |
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