硼铝复合材料中吸水率与起泡关系研究

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Effect of Water Absorption Rate on Blister Behavior of B₄C-Al Composites

Science and Technology on Reactor Fuel and Materials Laboratory, Nuclear Power Institute of China, Chengdu, 610041, China

摘要: 通过对不同密度的硼铝复合材料进行起泡试验,得出了各材料的吸水率,发现不同密度材料的吸水率差异极大,并且吸水率只有在一定范围(10-3量级)内,材料才有可能起泡,这不同于美国电力研究院所得结果。起泡原因可能是铝粉被硼酸溶液腐蚀,产生氢气后因内部压力超过芯体和包壳的结合强度,随后导致塑性变形和起泡。
- 硼铝复合材料 /
- 吸水率 /
- 起泡 /
- 腐蚀
Abstract: Blister test of B₄C-Al composite materials with different density were completed and the rate of water absorption was calculated.The results reveal that the difference on the rate of water absorption is significant,and the bubble occurs only when the rate of water absorption is in a specific range,which is dif-ferent with the result of EPRI.The reason of blister may be that the pressure of hydrogen produced in the cor-rosion reaction exceeds the bonding of clads and core,subsequently plastic deformation would take place and blister formed.
- Boron carbide-aluminum composite materials /
- Rate of water absorption /
- Blister /
- Corrosion