氧化钛快速相变及增强火炮身管缓烧蚀材料性能的研究

Study on the Rapid Phase Transformation of Titanium Oxide and theEnhanced Properties of the Anti-ablation Material of the Artillery Barrel

缓烧蚀添加剂被认为是延长火炮身管寿命的有效技术之一。为获得降烧蚀性能更加优异的缓烧蚀添加剂,系统开展了缓烧蚀添加剂配方对比研究、静态高温试验,成功研制出平均单发烧蚀磨损量在0.002 mm的缓烧蚀添加剂。通过实弹靶试、扫描电镜、X射线衍射仪等方法,阐明了其作用机理:氧化钛由锐钛矿型向金红石型转变,有利于缓烧蚀性能提升。氧化银能够有效促进氧化钛相变,且能够促使氧化钛快速相变。锐钛矿氧化钛的增加使这种作用得以增强,进一步提升缓烧蚀性能。此外,缓烧蚀添加剂能够附着于身管内壁,形成保护膜,尤其是身管内壁裂纹处,且膜层具有一定的厚度,能够有效阻隔火药燃气对身管内壁的侵蚀。该技术为缓烧蚀添加剂的发展提供了更多的理论和数据支撑,为身管武器延寿提供了更多的技术支撑。

Anti-ablation additives are considered to be one of the effective technologies to improve the life of artillery barrels.In order to obtain the anti-ablation additives with better anti-ablation performance,the comparative study of the formula of the anti-ablation additives and the static high temperature test were systematically carried out,and the average ablative wear amount of a single shot was successfully developed.Through the live target test,scanning electron microscope,X-ray diffractometer and other methods,the mechanism of action was clarified:the transformation of titanium oxide from anatase type to rutile type is conducive to the improvement of slow ablation and ablation performance.Silver oxide can effectively promote the phase transformation of titanium oxide,and can promote the rapid phase transformation of titanium oxide.This effect is enhanced by the addition of anatase titanium oxide,further improving the ablation inhalation performance.In addition,the anti-ablation additives can adhere to the inner wall of the body tube,especially the cracks on the inner wall of the body tube,and the film layer has a certain thickness,which can effectively block the erosion of the gunpowder gas on the inner wall of the body tube.This technology provides more theoretical and data support for the development of slow ablation additives,and provides more technical support for the life extension of body-controlled weapons.