TY - JOUR
T1 - Quantitative determination of ε-phase in polymorphic HNIW using X-ray diffraction patterns
AU - Huaxiong, Chen
AU - Shusen, Chen
AU - Lijie, Li
AU - Shaohua, Jin
PY - 2008/12
Y1 - 2008/12
N2 - An X-ray diffraction method was applied for the quantitative determination of the e-Hexanitrohexaazaisowurtzitane (HNIW) in polymorphs of HNIW. The XRD patterns of four polymorphs illustrate the unique nonoverlapping peak at 19.9" which belongs to ε-HNIW. The intensity ratio of the peak at 19.9° of ε-HNIW to the peak at 79.6° of α-Al 2O3 is proportional to the weight ratio of standard ε-HNIW to the internal standard of α-Al2O3, which enables the internal standard method. When the particle size of the sample is less than 10 μm, the content of ε-HNIW ranging from 70 to 100 wt.-% can be determined with an absolute error below 2.0%.
AB - An X-ray diffraction method was applied for the quantitative determination of the e-Hexanitrohexaazaisowurtzitane (HNIW) in polymorphs of HNIW. The XRD patterns of four polymorphs illustrate the unique nonoverlapping peak at 19.9" which belongs to ε-HNIW. The intensity ratio of the peak at 19.9° of ε-HNIW to the peak at 79.6° of α-Al 2O3 is proportional to the weight ratio of standard ε-HNIW to the internal standard of α-Al2O3, which enables the internal standard method. When the particle size of the sample is less than 10 μm, the content of ε-HNIW ranging from 70 to 100 wt.-% can be determined with an absolute error below 2.0%.
KW - Hexanitrohexaazaisowurtzitane
KW - Quantitative determination of ε-HNIW
KW - X-ray diffraction
UR - http://www.scopus.com/inward/record.url?scp=57649174897&partnerID=8YFLogxK
U2 - 10.1002/prep.200700228
DO - 10.1002/prep.200700228
M3 - Article
AN - SCOPUS:57649174897
SN - 0721-3115
VL - 33
SP - 467
EP - 471
JO - Propellants, Explosives, Pyrotechnics
JF - Propellants, Explosives, Pyrotechnics
IS - 6
ER -