| 直流电场中电流变体单链的电学行为及剪切强度 |
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| 引用本文： | 吴承伟,郭杏林. 直流电场中电流变体单链的电学行为及剪切强度[J]. 物理学报, 1997, 46(8): 1500-1507 |
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| 作者姓名： | 吴承伟 郭杏林 |
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| 作者单位： | 大连理工大学工程力学研究所 |
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| 基金项目： | 国家自然科学基金及高等学校博士学科点专项科研基金资助的课题. |
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| 摘 要： | 研究了由微小的潮湿玻璃球（直径为200—220μm）在硅油中加直流电场后形成的单“链”的电学行为及剪切强度．发现流过静态（无剪切）单链的电流随外加电场强度的增加而增加，受剪单链的剪切屈服应力与外加电场强度约1.4次幂成正比，这个电流和剪切屈服应力与组成链的玻璃球数（3—5个）几乎无关．实测单链的平均电流密度和剪切屈服应力随电场强度的变化与理论预言符合良好关键词：
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| 关 键 词： | 流变 电导率 剪切强度 电流变体 直流电场 单链 |
| 收稿时间： | 1996-07-01 |
ELECTRICAL PROPERTY AND SHEAR STRENGTH OF A SINGLE CHAIN IN ELECTRORHEOLOGY UNDER DC ELECTRICAL FIELD |
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| WU CHENG-WEI and GUO XING-LIN. ELECTRICAL PROPERTY AND SHEAR STRENGTH OF A SINGLE CHAIN IN ELECTRORHEOLOGY UNDER DC ELECTRICAL FIELD[J]. Acta Physica Sinica, 1997, 46(8): 1500-1507 |
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| Authors: | WU CHENG-WEI and GUO XING-LIN |
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| Abstract: | The electrical property and shear strength of a single chain formed in silicone oil is studied under dc electrical field,which consists of small humidited glass spheres (diameter is 200—220μm).It is found that the current flowing through a static (no shear) single chain increases with the increase in electrical field strength.The current and the yield shear stress is almost independent of the number (3—5) of the glass spheres to form the chain.The measured average current density and yield shear stress of a single chain versus the field strength is fairly agreement with that predicted theoretically. |
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