Al/W/PTFE粒径级配关系对材料强度影响的实验研究  

Influence of paarticle size grading on strength of Al/W/PTFErticle composite

作　　者：乔良[1] 涂建[1] 赵利军[1] 龚苹[1] 马爱娥[1] 张先锋[2] 张将[3] 乔光利[3] 

机构地区：[1]北京航天长征飞行器研究所,北京100076 [2]南京理工大学智能弹药技术国防重点实验室,江苏南京210094 [3]中国兵器科学研究院宁波分院,浙江宁波315103

出　　处：《兵器材料科学与工程》2014年第6期17-21,共5页Ordnance Material Science and Engineering

基　　金：国家自然科学基金项目(10902053);爆炸科学与技术国家重点实验室开放基金(KFJJ10-6M)

摘　　要：Al/W/PTFE是一种具有冲击释能和强度特性的新型含能结构材料,为研究其宏观强度受材料组分配比、颗粒尺寸、级配关系的影响,基于准静态压缩实验,获取不同方案下Al/W/PTFE试件的应力-应变曲线,通过对比分析得到材料组分、颗粒级配关系对强度的影响规律。结果表明,颗粒尺寸级配关系是决定Al/W/PTFE材料强度的关键,尺寸相近的颗粒级配关系呈更高的材料宏观强度。Al/W/PTFE is a new multifunctional energetic structural material with the characteristic of release energy and structure strength. The size grading,material constitute,shape and distribution of granular mixture play a significant role on its strength.The quasi-static compression experiments were conducted based on different specimens,the influence of size grading on strength was obtained from strain- stress curve. The result shows that the size grading is a key factor on determining the strength of composite,and the material with similar size grading shows higher strength.

关 键 词：尺寸级配 含能结构材料 准静态压缩 材料强度 

分 类 号：TJ55[兵器科学与技术—军事化学与烟火技术] O38[理学—流体力学]