| 低膨胀陶瓷材料 |
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| 引用本文： | 刘敏 周洪庆. 低膨胀陶瓷材料[J]. 硅酸盐通报, 1997, 16(3): 4-8 |
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| 作者姓名： | 刘敏 周洪庆 |
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| 作者单位： | 南京化工大学材料科学与工程系 |
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| 摘 要： | 本文阐述了晶体的热膨胀与化学键及晶体结构之间的关系，以及晶体热膨胀的各向异性对多晶陶瓷体热膨胀的影响，微裂纹对降低陶瓷材料的平均膨胀系数有一定作用，但同时又降低了材料的机械强度。
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| 关 键 词： | 低膨胀陶瓷 热膨胀系数 裂纹 陶瓷 结构 |
Low Expansion Ceramics |
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| Liu Min Zhou Hongqing. Low Expansion Ceramics[J]. Bulletin of the Chinese Ceramic Society, 1997, 16(3): 4-8 |
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| Authors: | Liu Min Zhou Hongqing |
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| Affiliation: | Nanjing University of Chemical Technology |
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| Abstract: | The relations between thermal expansion and chemical bonds as well as the crystal structures have been revealed.The effect of the thermal expansion anisotropy of crystallites on the bulk expansion of the polycrystalline ceramics are discussed.The microcracks have certain effects on reducing the average thermal expansion coefficient,nevertheless they decrease the mechanical strength of the ceramics. |
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| Keywords: | low expansion ceramics thermal expansion coefficient anisotropy microcracks |
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