SiC和B4C防弹插板抗多发弹打击损伤特性研

doi:10.15541/jim20160667

摘要/Abstract

摘要：

使用87式5.8 mm钢芯弹分别对SiC和B₄C复合防弹插板进行实弹靶试试验, 通过对鉴证靶凹陷深度、防弹插板背凸体积和X射线数字直接成像检测系统(DR)对防弹插板弹击损伤情况进行分析, 同时结合陶瓷材料显微结构和力学性能分析对防弹插板抗多发弹打击损伤特性进行了研究。结果表明, SiC和B₄C防弹插板都能有效防御3发5.8 mm钢芯弹的连续打击, 具有较好的抗多发弹打击性能;B₄C防弹插板与SiC防弹插板受弹击后鉴证靶凹陷深度相当, 其背凸体积较SiC防弹插板降低超过35%, 陶瓷锥底面平均直径增加30%以上, 吸收了更多的弹丸冲击动能, 这与B₄C陶瓷具有较高的硬度有关。

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关键词: 防弹插板, 多发弹打击, 损伤特性, 硬度

Abstract:

The ballistic impact tests of SiC and B₄C ballistic insert plates were conducted with 87-type 5.8 mm steel core projectile. Through the analysis on the depth of penetration in clay witness, bulge volume at the back of the ballistic insert plates, and impact damage being nondestructively tested by digital radiograph (DR), the damage characteristics of SiC and B₄C ballistic insert plates after multi-hit were investigated. Meanwhile, the microstructures and mechanical properties of ceramic materials were also studied. The results show that SiC and B₄C ballistic insert plates effectively resist 87-type 5.8 mm steel core projectile for 3 times and show good multi-hit capability. The depths of penetration in clay witness of B₄C ballistic insert plate are comparable with SiC ballistic insert plate. Compared with SiC ballistic insert plate, the volume of bulge at the back of B₄C ballistic insert plate is reduced by more than 35%, and the average diameter of the ceramic cone of B₄C ballistic insert plate is increased by more than 30%. The impact energy of the projectile is effectively absorbed by the B₄C ballistic insert plate, which attributes to the high hardness of B₄C ceramic.

Key words: ballistic insert plate, multi-hit, damage characteristics, hardness

中图分类号:

TJ04

崔凤单, 马天, 李伟萍, 吴国清. SiC和B₄C防弹插板抗多发弹打击损伤特性研[J]. 无机材料学报, 2017, 32(9): 967-972.

CUI Feng-Dan, MA Tian, LI Wei-Ping, WU Guo-Qing. Damage Characteristics of SiC and B₄C Ballistic Insert Plates Subjected to Multi-hi[J]. Journal of Inorganic Materials, 2017, 32(9): 967-972.

图/表 8

图1 实弹靶试试验装置示意图[18]

Fig. 1 Schematic diagram of ballistic test system[18]

图2 SiC和B4C防弹插板迎弹面及背弹面损伤

Fig. 2 Morphologies of SiC and B4C ballistic insert plates after multi-hit (a) Front face of SiC ballistic insert plate; (b) Black face of SiC ballistic insert plate; (c) Front face of B4C ballistic insert plate; (d) Black face of B4C ballistic insert plate

表1 实弹靶试试验结果

Table 1 Results of ballistic test

Ballistic insert plates	Ballistic number	Velocity /(m·s^-1)	Depth of indentation /mm	Volume of bulge /mm³
SiC/ UHMWPE	No.1	912	8.7	28320
	No.2	921	9.4	38740
	No.3	919	8.9	27070
B₄C/ UHMWPE	No.1	928	7.8	18570
	No.2	910	6.3	17100
	No.3	914	7.2	24110

图3 SiC和B4C防弹插板DR检测图

Fig. 3 Digital radiograph of SiC and B4C ballistic insert plates after multi-hit (a) SiC ballistic insert plat; (b) B4C ballistic insert plate

表2 SiC和B4C防弹插板陶瓷锥底面直径测量结果

Table 2 Diameter of the ceramic cone for SiC and B4C ballistic insert plates

	D₁/mm	D₂/mm	D₃/mm
SiC/UHMWPE	54.2	35.6	41.8
B₄C/UHMWPE	57.6	59.1	54.5

图4 弹丸冲击后SiC和B4C陶瓷断口形貌的SEM照片和EDS图谱

Fig. 4 SEM morphologies of fracture surface and EDS patterns of SiC and B4C ceramic after impact (a) SEM of SiC ceramic; (b) EDS of Si particle in SiC ceramic; (c) SEM of B4C ceramic; (d) EDS of SiC particle in B4C ceramic

表3 SiC和B4C装甲陶瓷的力学性能

Table 3 Property of SiC and B4C ballistic ceramics

Ceramics	Density /(g·cm^-3)	Elastic modulus /GPa	Flexural strength /MPa	Vickers hardness /GPa	Fracture toughness /(MPa·m^1/2)
SiC	3.07	418	445	22.9	3.6-4.0
B₄C	2.50	466	543	33.4	2.8-3.0

图5 弹丸冲击前SiC (a)和B4C (b)陶瓷表面形貌的SEM照片

Fig. 5 SEM morphologies of SiC (a) and B4C (b) ceramic before impact

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SiC和B₄C防弹插板抗多发弹打击损伤特性研

Damage Characteristics of SiC and B₄C Ballistic Insert Plates Subjected to Multi-hi

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