本文研究了影响自燃烧工艺的几个工艺条件，如溶液ＰＨ值、溶液中水含量、加热温度等因素对凝胶化的影响；利用差热热重分析仪和Ｘ射线衍射仪分析了干凝胶的热历程及产物的物相结构．结果表明，自燃烧粉末的晶化峰温为 ５０９℃，在 ８００℃ 煅烧２ｈ即可得到晶化的一次颗粒＜５０ｎｍ的ＢａＮｄ２Ｔｉ５Ｏ１４粉末，并分析了产生温度差异的原因。 In this paper, several process conditions affecting the self-combustion process were studied, such as the pH of the solution, the water content in the solution, the heating temperature and other factors on the gelation; using differential thermal analyzer and X-ray diffractometer analysis of dry coagulation Plastic heat history and product phase structure. The results show that the crystallization peak temperature of the self-combustion powder is 509 ℃, calcined at 800 ℃ for 2h, the crystallized BaNd2Ti5O14 powder with primary particles <50nm can be obtained and the reason of temperature difference has been analyzed.