Influence of Joining Interlayer on Impact Damage to Laminated Boron Carbide Ceramics
Influence of Joining Interlayer on Impact Damage to Laminated Boron Carbide Ceramics
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DOI：
10.1111/ijac.12342
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发表时间：
2015-11
影响因子：
2.1
通讯作者：
Kiyoto Sekine;T. Kumazawa;Y. Tanabe
中科院分区：
文献类型：
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作者：
Kiyoto Sekine;T. Kumazawa;Y. Tanabe
使用四种类型的铝片（无孔和有 25 个直径为 4、8 和 25 毫米的孔）以 100%、94%、76% 和 45% 的接合率研究了层压 B4C 陶瓷样品的冲击损坏。使用三块相同类型的铝板层压四块 1 毫米厚的 B4C 陶瓷板，并在真空中于 700°C 下接合。在使用直径为 4 mm 的球形 SUJ-2 弹丸、速度约为 300 ms−1 的冲击损伤试验中，块状 B4C 出现了大的圆锥形裂纹和明显的断裂；层压样品中的锥形裂纹比块状 B4C 的小。然而，无论接合率如何，接合率为45%至96%的层压B4C的圆锥形裂纹都具有相同的尺寸。层压样品背面的总载荷和诱导压力面积小于块状 B4C 观察到的总载荷和诱导压力面积，并且高和低接合率层压样品的总载荷和诱导压力面积相似。层压 B4C 样品背面的最大压力高于块状 B4C 观察到的最大压力，并且随着层压中间层接合率的降低而增加。
Impact damage of laminated B4C ceramic samples was investigated using four types of aluminum sheets — without holes and with 25 4-, 8-, and 25-mm-diameter holes — at joining ratios of 100, 94, 76, and 45%. Four 1-mm-thick B4C ceramics plates were laminated using three aluminum sheets of the same type and joined at 700°C in vacuum. In impact damage tests using spherical SUJ-2 projectile with a diameter of 4 mm with a velocity of approximately 300 ms−1, bulk B4C showed a large conical crack and significant fractures; the conical crack in the laminated samples was smaller than that of the bulk B4C. However, the conical cracks of the laminated B4C with the joining ratio 45 to 96% were of the same size, irrespective of the joining ratios. The total load and induced pressure area on the rear side of laminated samples were smaller than that observed for bulk B4C, and total load and induced pressure area were similar for laminated samples with high and low joining ratios. The maximum pressure on the rear face of laminated B4C samples was higher than that observed for bulk B4C and increased with decreasing joining ratio of laminate interlayer.