高弹能耗散能力氧氮玻璃的制备及其组成-结构-性能相关性

In the changing world, the threats from riots, burglary, terror and war process have escalated and become more versatile.As a result, the transparent armors with rapidly deployable, light weight, low cost and high performance are being designed and developed competitively by many advanced countries. For providing high level protection,relatively big armour thickness is needed, which subsequently results in high armour weight. At the same time, the light transmission will decreases with increasing thickness of transparent material.Obviously,the main limiting factors for the armours are weight and thickness. .The lightweight of transparent armor mainly depends on the hard panel materials with high impact resistance.This problem of high thickness and weight of transparent armours is presently solved by developing new transparent ceramics with high hardness such as aluminium oxynitride (AlON), spinel (MgAl2O4) and sapphire (Al2O3 single crystal).However, available production technologies of these materials do not meet the criteria for requested properties(dimensions,transparency etc.) and their purchase is very expensive or even unfeasible (AlON).. Based on the application background of new transparent armor, the design techniques, preparation technology and the correlation between composition, process, structure and performance for the oxynitride glass with high ballistic energy dissipation ability（BEDA） will be investigated in order to alternative those ceramics such as sapphire and polycrystalline AlON which have high price and are difficult to prepare. The fabrication process and performance system will be established to provide the reference for the application or follow-up study of the oxynitride glass. This study has important practical value in promoting the progress of preparation science and technology for oxynitride glass and the development of new transparent armor, accelerating their practical application and meeting the demand of the national security, national defense construction and social development for high-performance transparent armor materials. Meanwhile, it is expected to obtain the correlation between composition, process, structure and performance according to the investigation results, which will provide the guidance to realize controllable preparation, performance optimization and tailoring of oxynitride glass. The theoretical value is obvious.

可快速部署、重量轻、成本低、性能优异的新型透明装甲是当前世界先进国家竞相开发研究的热门课题，重量和厚度是制约其发展和应用的关键问题。透明装甲的轻量化主要依赖于具有高抗冲击性能的硬质面板材料。本项目以新型透明装甲为应用背景，以替代价格高昂且难于制备的蓝宝石和多晶AlON陶瓷为目标，研究高弹能耗散能力氧氮玻璃的组成设计技术、制备工艺技术及组成-工艺-结构-性能之间的相关性，建立高弹能耗散能力氧氮玻璃的制备工艺和性能指标体系，为材料应用或后续研究提供参考依据。这项研究对于促进氧氮玻璃制备科学技术的进步和新型透明装甲的发展，加速其实用化进程，满足国家安全、国防建设、社会发展对高性能透明装甲材料的需求，具有重要的实用价值；同时，通过系统、全面的研究，可望获得轻型透明装甲用氧氮玻璃中组成-工艺-结构-性能间的变化规律，为实现氧氮玻璃的可控制备、性能优化与"剪裁"提供指导依据，具有重要的理论价值。

研究了高弹能耗散能力氧氮玻璃的组成设计技术、制备工艺技术及组成-结构-性能间的演变规律，获得了高弹能耗散能力氧氮玻璃的可控制备技术与性能调控技术。通过组成与工艺优化，实现了高弹能耗散能力氧氮玻璃的可控制备与性能可调，制得弹能耗散能力优于蓝宝石且与AlON、尖晶石可比的氧氮玻璃，其弹性模量145.6-152.8 GPa，密度2.83-3.13 g/cm3，显微硬度9.70-10.47 GPa，断裂韧性1.16-1.21 MPa•m1/2，相对弹能耗散能力2.29-2.56。相对弹能耗散能力是浮法玻璃的2倍以上，明显高于蓝宝石，接近于AlON陶瓷，可以替代现用蓝宝石和AlON陶瓷等材料，应用于轻型透明装甲材料、紫外探测、透红外窗口等领域。增加了高弹能耗散能力材料新品种。发表学术论文15篇，其中，国际权威杂志论文10篇，国内杂志论文5篇。申请新材料发明专利4项，其中3项已获授权。出版著作1部。国际会议报告1次。培养青年教师2人、博士后1人、研究生14 人。近年来，包括美国、英国、德国、日本、西班牙、捷克斯洛伐克、中国香港、中国上海在内的不少国际材料会议组织以“Share your scientific excellence”、“because of your eminence in the field”、“discuss and share your views”、“tell us about your research”、“opportunity to host frontier research topics”为由，来函邀请申请人以“Honorable speaker、invited speaker”等身份出席会议。相关研究工作已引起国内外的高度关注，并得到国际同行的肯定。