摘要
通过差热分析仪和激光粒度分析仪对单斜仲钨酸铵(APT)在氩气中以9℃/min进行热分解的试验结果分析可以得出:单斜仲钨酸铵(APT)在氩气中以9℃/min进行升温时,在253.3℃时,产物粒度细化的幅度最大;在232.9℃时,产物粒度细化的幅度次之;在297.4℃时,产物粒度粗化的幅度最大;在432.1℃时,产物粒度粗化的幅度次之;在150.2℃和500.0℃时,产物粒度粗化程度不明显。为了得到不同粒度的产物,就可以分阶段性地对单斜仲钨酸铵(APT)进行升温。
Thermal decomposition of monoclinic ammonium paratungstate was investigated by differential scanning calorimetry and laser granulometry.The results show that extent of product particle refining is maximum at 253.3℃ , secondly at 232.9℃ ;extent of product particle coarsening is maximum at 297.4℃ , secondly at 432. 1℃ and change in particle size at 150.2℃ and 500℃ is not apparent when heating at rate of 9℃/min in Ar. Monoclinic ammonium paratungstate with different particle size can be obtained by heating stages.
出处
《粉末冶金技术》
EI
CAS
CSCD
北大核心
2006年第6期427-429,433,共4页
Powder Metallurgy Technology
关键词
粒度
热分解
差热
单斜仲钨酸铵
particle size
thermal decomposition
differential scanning calorimetry
monoclinic ammonium paratungstate
