| 含强约束界面片状夹杂复合陶瓷热膨胀系数预报 |
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| 引用本文： | 倪新华,韩保红,程兆刚,赫万恒.含强约束界面片状夹杂复合陶瓷热膨胀系数预报[J].固体力学学报,2011(Z1). |
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| 作者姓名： | 倪新华 韩保红 程兆刚 赫万恒 |
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| 作者单位： | 军械工程学院基础部; |
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| 基金项目： | 国家自然科学基金资助项目(No.10872216) |
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| 摘 要： | 以含强约束界面相片状夹杂复合陶瓷的细观结构为基础,建立含片状夹杂、强约束界面相、基体氛围和有效介质组成的四相模型,将片状夹杂、强约束界面相和基体氛围构成的三相胞元看作复合夹杂,根据Eshelby理论,确定了含同向片状夹杂复合陶瓷的有效热膨胀系数的解析表达式,复合陶瓷为横观各向同性,有2个独立的热膨胀系数.定量分析表明含同向片状夹杂的强约束界面复合陶瓷的有效热膨胀系数具有明显的尺度效应.
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| 关 键 词： | 片状夹杂 强约束界面相 四相模型 三相胞元 有效热膨胀系数 尺度效应 |
THERMAL EXPANSION COEFFICIENT PREDICTION OF COMPOSITE CERAMIC WITH LAMELLAE AND STRONG CONSTRAINING INTERPHAS |
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| Xinhua Ni Baohong Han Zhaogang Cheng Wanheng He.THERMAL EXPANSION COEFFICIENT PREDICTION OF COMPOSITE CERAMIC WITH LAMELLAE AND STRONG CONSTRAINING INTERPHAS[J].Acta Mechnica Solida Sinica,2011(Z1). |
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| Authors: | Xinhua Ni Baohong Han Zhaogang Cheng Wanheng He |
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| Institution: | Xinhua Ni Baohong Han Zhaogang Cheng Wanheng He(Department of Basic Course,Mechanical Engineering College,Shijiazhuang,050003) |
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| Abstract: | On the basis of microstructures in composite ceramic containing lamellae and strong constraining interphas,the four phase model,which is composed of lamellae,strong constraining interphase,matrix-atmosphere and effective medium,is put forward.Three phase cell that is composed of lamellae,strong constraining interphase and matrix-atmosphere can be regarded as a composite inclusion.In view of Eshelby theory,the effective thermal expansion coefficients of composite ceramic containing the same orientation lamel... |
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| Keywords: | lamellae strong constraining interphase four phase model three phase cell effective thermal expansion coefficient size dependence |
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