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href='http://www.pmghym.live/news/140.html'>http://www.pmghym.live/news/140.html</a>   å‘布旉™—´åQ?019-03-16 </div> <div class="news_content"> <p><div class="para" style="font-size:14px;color:#333333;font-family:arial, 宋体, sans-serif;background-color:#FFFFFF;"> 陶瓷和金属的防弹机理有很大的不同åQŒé‡‘属是ç”׃ºŽå¡‘性变形而吸收射弹的动能åQŒè€Œé™¶ç“äh˜¯ç”׃ºŽå…¶ç ´è£‚而吸收射弹的动能ã€? <div class="lemma-picture text-pic layout-right" style="border:1px solid #E0E0E0;margin:0px 0px 3px;"> <a class="image-link" href="https://baike.baidu.com/pic/%E9%98%B2%E5%BC%B9%E9%99%B6%E7%93%B7/8862689/0/5327ce16193a1270972b43a3?fr=lemma&ct=single" target="_blank"><img class="" src="https://gss0.bdstatic.com/94o3dSag_xI4khGkpoWK1HF6hhy/baike/s%3D220/sign=3deb59969925bc312f5d069a6edf8de7/738b4710b912c8fcd3d07a95fc039245d6882142.jpg" alt="" style="width:151px;height:220px;" /></a> </div> 通常åQŒé™¶ç“¯‚£…甲系¾lŸæ˜¯ç”±å•ç‰‡é™¶ç“ähˆ–陶瓷—金属复合物òq¶è¦†ç›–有高抗张强度有机纤¾l´ç»“合的ž®¼é¾™å¸ƒå±‚所¾l„成åQˆçŽ»ç’ƒçº¤¾l´äº¦å¯ï¼‰ã€?</div> <div class="para" style="font-size:14px;color:#333333;font-family:arial, 宋体, sans-serif;background-color:#FFFFFF;"> 在子弹的冲击下(速度>700ï½?00m/såQ‰ï¼Œé™¶ç“·æ­£é¢æ˜¯è¢«ç ´ç¢Žè€Œå‰©ä½™çš„能量则被反面软增强(例如ž®¼é¾™å¸ƒå±‚åQ‰ææ–™æ‰€å¸æ”¶ã€‚反面材料必™å»èƒ½æ”¯æŒä½å­å¼¹å†²å‡ÕdŽé™¶ç“·ææ–™çš„碎片和子弹本èínã€?</div> <div class="para" style="font-size:14px;color:#333333;font-family:arial, 宋体, sans-serif;background-color:#FFFFFF;"> 防弹陶瓷要求的性能较多åQŒä¾‹å¦‚:密度和气孔率、硬度、断裂韧性、杨氏模量、声速、机械强度等åQŒä“Q何一个性能都不能与整体防弹性能有直接和军_®šæ€§çš„关系åQŒå› è€Œæ–­è£‚机理十分复杂,裂纹形成是由许多因素引è“v的,而且发生的时间十分短暂。防弚w™¶ç“ïLš„气孔率应ž®½é‡ä½Žï¼Œä»¥æé«˜ç¡¬åº¦å’Œæ¨æ°æ¨¡é‡åQŒå¯¹Al2O3ç“äh¥è¯ß_¼Œå…¶æ°”孔率应接˜q‘于é›Óž¼Œè€Œå¸æ°´çŽ‡ä¸è¶…˜q?.02%。陶ç“ïLš„¼‹¬åº¦è¦æ±‚很高åQŒåº”高于飞行弹头的硬度,对Al2O3陶瓷来说åQŒç¡¬åº¦Hv应超˜q?220ï½?250。声韛_œ¨é™¶ç“·ä¸­ä¼ æ’­çš„速度åQŒè¡¨½Cºé™¶ç“·å†²å‡»é¢ä¸Šæ¶ˆè€—能量的能力åQŒå¸Œæœ›æœ‰é«˜çš„声速,高的声速也间接表示陶瓷有良好的致密化和低的ž®é—­æ°”孔。根据实际经验,Al2O3ç“ïLš„声速应大于10000m/såQŒæœ€å¥½æ˜¯10500ï½?1500m/s。陶ç“ähœ‰ä¸¤ç§é˜²å¼¹çš„类型,卛_•ç‰‡é™¶ç“ïL»“构和陶瓷复合物结构,单片¾l“构陶瓷包括氧化物陶ç“øP¼ˆä¸»è¦æ˜¯Al2O3ç“øP¼‰å’Œéžæ°§åŒ–物陶ç“øP¼ˆä¾‹å¦‚åQšSiC、Si3N4、AlN和TiB2½{‰ï¼‰åQŒä»¥åŠäºŒå…ƒç³»¾lŸï¼ˆä¾‹å¦‚åQšB4CåQTiB2基陶ç“øP¼‰ã€‚一般来è¯ß_¼Œéžæ°§åŒ–物陶瓷å…ähœ‰æ›´é«˜çš„物理性能和相对低的密度(除TiB2基陶瓷外åQ‰ï¼Œä½œäؓ防弹比Al2O3ç“äh›´æœ‰åˆ©ã€‚然而,˜q™äº›ææ–™åˆ‰™€ æ–¹æ³•å¤šç”¨ä­hæ ÆD¾ƒè´ëŠš„热压åQŒä¸æ˜“äñ”业化。但热压可提高防弚w™¶ç“ïLš„机械性能åQŒè¿™ä¸€ç‚¹ä¹Ÿæ˜¯æ˜Žæ˜„¡š„。陶瓷基复合物具有高的防å¼ÒŽ€§èƒ½åQŒè¿™æ˜¯å› ä¸ºæœ‰é«˜çš„机械性能åQŒç‰¹åˆ«æ˜¯æ–­è£‚韧性。在ž®„弹冲击之后åQŒä¸Žå•ç‰‡é™¶ç“·ç›¸æ¯”åQŒé™¶ç“·åŸºå¤åˆç‰©å…·æœ‰è¾ƒå¥½çš„完整性。几¿Uå¤åˆç‰©é™¶ç“·å¦‚下åQ? <div class="lemma-picture text-pic layout-right" style="border:1px solid #E0E0E0;margin:0px 0px 3px;"> <a class="image-link" href="https://baike.baidu.com/pic/%E9%98%B2%E5%BC%B9%E9%99%B6%E7%93%B7/8862689/0/34bbf8cd6da827390fb345ae?fr=lemma&ct=single" target="_blank"><img class="" src="https://gss2.bdstatic.com/-fo3dSag_xI4khGkpoWK1HF6hhy/baike/s%3D220/sign=48fe34d9cb1349547a1eef66664e92dd/fd039245d688d43f91b51daa7d1ed21b0ef43b4d.jpg" alt="德国¼„›_Œ–¼‹¼é˜²å¼šw™¶ç“äh¿çš„制é€? style="width:220px;height:141px;" /></a><span class="description" style="color:#555555;font-size:12px;font-family:宋体;line-height:15px;">德国¼„›_Œ–¼‹¼é˜²å¼šw™¶ç“äh¿çš„制é€?/span> </div> Al2O3/SiCåQˆwåQ‰ï¼ŒAl2O3/SiCåQˆfåQ‰ï¼ŒAl2O3/CåQˆfåQ‰ï¼ŒTiB2/B4CåQˆpåQ‰ï¼ŒTiB2/SiCåQˆpåQ‰ä»¥åŠé‡‘属陶ç“øP¼ˆå¦‚牌号äؓLanxideTMåQ‰ï¼Œå…¶ç»„成äؓ渗Ni/åQˆAlåQ‰ä¹‹¼„›_Œ–物,例如åQšNi/TiC和Al/B4CåQˆpåQ‰ï¼Œ˜q™äº›ææ–™å¤šæ•°å±žäºŽçƒ­åŽ‹åQŒå› è€Œä­hæ ÆD¾ƒè´üc€‚虽焉™˜²å¼šw™¶ç“·LanxideTM不是热压工艺åQŒä½†å…‰™œ€è¦ç‰¹åˆ«çš„工艺和设备,因而ä­hæ ég¹Ÿæ¯”较è´üc€?</div></p> </div> 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