摘要
以理学D/max-3B X-射线衍射仪、TG-DTA、IR-440红外光谱等方法,研究了拟薄水铝石结构的演化。将拟薄水铝石视为一个演化系列,随着层间结构水的变化,导致结构由非晶态至晶态、无序向有序的演化。研究了衍射峰线形宽化、[020]d值位移、晶粒度、吸热效应、羟基振动等变化规律,进而提出了拟薄水铝石的结构为[AIOOH]·nH_2O,n为0.080～0.602。
The structural evolution of pseudo-boehmite has been studied by the Rigaku X-ray diffractometer,TG-DTA and the IR-440 infrared spectrometer. As the pseudo-boehmite being a evolution series,the changes of layer structural water makes its structure evolve from non-crystalline and disordering to crystalline state and ordering. We have studied the variation rules of widening of diffraction line profile, [020] displacement value[d],grain size,en-dothermic effect and hydroxy vibration. The results demonstrate that the structure of pseudo-boehmite is [AlOOH]. nH20,n is 0. 080-0. 602.
出处
《现代技术陶瓷》
CAS
1997年第4期7-12,共6页
Advanced Ceramics
关键词
拟薄水铝石
层间结构水
氧化铝水合物
结构
[AlOOH] nH20 layer structural water displacement value[d] widening of diffraction line profile endothermic effect grain size hydroxy evolution
