| Effect of porosity on the crack pattern and residual strength of ceramics after quenching |
| Shao YF(邵颖峰) ; Du RQ(杜睿琪); Wu XF; Song F(宋凡); Xu XH(许向红); Jiang CP; Shao, YF (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beijing 100190, Peoples R China.
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| 发表期刊 | JOURNAL OF MATERIALS SCIENCE
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| 2013-09-01
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| 卷号 | 48期号:18页码:6431-6436 |
| ISSN | 0022-2461
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| 摘要 | The effect of porosity on the crack characteristics of ceramics after water-quenching is studied by measuring the cracks in ceramic sheets. The result reveals that the pore volume fraction has a slight effect on the enhancement of thermal shock resistance of ceramics when the porosity ranges from 0 to 20 %, because the length and density of the long crack in porous alumina are always slightly less than that in dense alumina. This result is in agreement with the prediction based on the minimum potential energy principle using experimentally measured data. Moreover, the proportion of the strength reduction in the third regime decreases significantly with increasing porosity, because the strength of unquenched specimens decreases more rapidly than that of quenched specimens with increasing porosity. The results of this study may help to further understand the thermal shock behavior of ceramics. |
| 关键词 | Alumina
Cracks
Porosity
Quenching
Thermal Shock
Minimum Potential Energy Principle
Pore Volume Fractions
Porous Alumina
Prediction-based
Residual Strength
Strength Reduction
Thermal Shock Resistance
Water-quenching
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| 学科领域 | 极端条件下的材料和结构
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| URL | 查看原文
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| 收录类别 | SCI
; EI
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| 语种 | 英语
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| WOS记录号 | WOS:000321285500038
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| 项目资助者 | National Natural Science Foundation of China [11102208, 91216110, 91016029, 11021262, 11061130550, 11023001]
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| 课题组名称 | LNM生物材料微结构和力学性能
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| 论文分区 | 二类/Q1
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| 引用统计 |
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| 文献类型 | 期刊论文
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| 条目标识符 | http://dspace.imech.ac.cn/handle/311007/47406
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| 专题 | 非线性力学国家重点实验室
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| 通讯作者 | Shao, YF (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beijing 100190, Peoples R China. |
推荐引用方式
GB/T 7714 |
Shao YF,Du RQ,Wu XF,et al. Effect of porosity on the crack pattern and residual strength of ceramics after quenching[J]. JOURNAL OF MATERIALS SCIENCE,2013,48,18,:6431-6436.
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| APA |
邵颖峰.,杜睿琪.,Wu XF.,宋凡.,许向红.,...&Shao, YF .(2013).Effect of porosity on the crack pattern and residual strength of ceramics after quenching.JOURNAL OF MATERIALS SCIENCE,48(18),6431-6436.
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| MLA |
邵颖峰,et al."Effect of porosity on the crack pattern and residual strength of ceramics after quenching".JOURNAL OF MATERIALS SCIENCE 48.18(2013):6431-6436.
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