کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5015634 1464051 2017 35 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
On the effects of powder morphology on the post-comminution ballistic strength of ceramics
ترجمه فارسی عنوان
بر روی اثرات مورفولوژی پودر در قدرت استحکام بالستیک پس از خرد کردن سرامیک
کلمات کلیدی
نفوذ بالستیک، سرامیک خرد شده، مقاومت بالستیک، ضربه محکم و ناگهانی،
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
چکیده انگلیسی
In this paper in order to try and elucidate the effects of particle morphology on ballistic response of comminuted systems, a series of experiments were carried out via the use of powder compacts with differing initial particle morphologies. This approach provided a route to readily manufacture comminuted armour analogues with significantly different microstructural compositions. In this study pre-formed 'fragmented-ceramic' analogues were cold-pressed using plasma-spray alumina powders with two differing initial morphologies (angular and spherical). These compacts were then impacted using 7.62 mm FFV AP (Förenade Fabriksverken Armour Piercing) rounds with the subsequent depth-of-penetration of the impacting projectile into backing Al 6082 blocks used to provide a measure of pressed ceramic ballistic response. When material areal density was accounted for via differing ballistic efficiency calculations a strong indication of particle morphology influence on post-impact ceramic properties was apparent. These results were reinforced by a separate small series of plate-impact experiments, whose results indicated that powder morphology had a strong influence on the nature of compact collapse.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Impact Engineering - Volume 100, February 2017, Pages 46-55
نویسندگان
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