Abstract

Combustion of thermite TiO₂/ZrO₂–Ca mixtures in nitrogen gas was studied upon variation in green composition and nitrogen pressure P in the presence/absence of added calcium iodate Ca(IO₃)₂. The addition of calcium iodate was found to increase combustion temperature and extend combustibility limits. For compositions in which calcium was completely replaced by calcium nitride Ca₃N₂, the combustion temperature decreased with increasing P. The combustion of ZrO₂ was found to proceed in two stages, the first stage being associated with the decomposition and gasification of calcium iodate.

中文翻译：

---

氮气中铝热剂TiO 2 / ZrO 2 -Ca混合物的燃烧

摘要

在添加或不添加碘酸钙Ca（IO ₃）₂的条件下，通过改变生坯组成和氮气压力P，研究了铝热剂TiO ₂ / ZrO ₂ -Ca混合物在氮气中的燃烧。发现添加碘酸钙会增加燃烧温度并延长可燃性极限。对于其中钙被氮化钙Ca ₃ N ₂完全替代的组合物，燃烧温度随P的增加而降低。发现ZrO ₂的燃烧分两个阶段进行，第一阶段与碘酸钙的分解和气化有关。