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1)  crystal transition
转晶
1.
The process of crystal transition from α,γ-HNIW to ε-HNIW in nitrate acid was studied.
研究了将α、γ-HNIW在硝酸中转晶为ε-HNIW的工艺。
2.
The development of crystal transition technology for HNIW in the last five years is reviewed, including the modified procedures in the laboratories and the industrial process for HNIW′s crystal transitions.
综述近五年六硝基六氮杂异伍兹烷(HNIW)转晶工艺的最新进展,包括多种经改进的实验室转晶方法及工业装置的转晶工艺。
2)  phase transformation
转晶
1.
A kind of novel TiO2 photocatalyst which could be excited by visible lights is obtained by heating nanometer anatase TiO2,which results in phase transformation from anatase phase to rutile phase.
加热处理纳米锐钛TiO2使其发生转晶,因而得到一种利用可见光激发的光催化剂,并对此催化剂用X射线衍射,红外吸收,紫外可见吸收等方法进行了表征。
3)  transformation [英][,trænsfə'meɪʃn]  [美]['trænsfɚ'meʃən]
转晶
1.
According to the principles of crystallization and transformation, and by proper control over technological conditions and operating methods, α HMX is thoroughly turned into β HMX with four different grades of A,C,D and F.
在丙酮 -乙酸乙酯溶剂中 ,加入醋酐法生产的粗品α- HMX,根据结晶、转晶原理 ,通过控制适当的工艺条件和恰当的操作方式 ,使α- HMX全部转化为β- HMX,同时直接制备出 A、C、D、F四个不同粒度级别的产品。
2.
The metastability of molecular sieve VPI-5 was obsered in its transformations by 31p MAS NMR and XRD.
在二丙胺合成体系中,晶化温度升高到150℃或延长晶化时间,VPI-5部分转晶为AIPO4-11。
4)  crystalline phase transformation
晶相转变
1.
The PVDF has the crystalline phase transformation in these methods.
利用固相法制备了掺杂有Nb2O5的PZT95/5压电陶瓷,采用固化、冷等静压、溶液混合法制备0-3型PZT/PVDF压电复合材料,经过对这几种方法的分析、比较后发现溶液混合法制备的样品中PZT微粉的分散性要优于前两种制备方法;这几种制备方法中PVDF均有晶相转变,但没有较为明显的β相PVDF存在,对复合材料的电性能的影响不大。
5)  phase transformation
晶型转变
1.
Crystallization and phase transformation characters of two groups of BAS glass-ceramics with and without ZrO_2 were investi- gated by differential scanning calorimetry (DSC),X-ray diffraction (XRD) and dilatometry.
用烧结法制备了化学计量比和高Ba含量的两组BaO-Al_2O_3-SiO_2(BAS)系微晶玻璃,采用差示扫描量热法(DSC)和X射线衍射分析(XRD)等手段研究了ZrO_2对BAS系微晶玻璃中六方钡长石析晶和六方钡长石向单斜钡长石晶型转变的影响。
2.
The crystallization and phase transformation characteristics of BAS glass-ceramics doped with different ZrO2 contents were investigated by differential scanning calorimetry, X-ray diffraction, according to the isoconversional method of Ozawa and the Johnson-Mehl-Avrami equation.
制备了不同ZrO2含量的BaO–Al2O3–SiO2(BAS)系微晶玻璃,用差示扫描量热法和X射线衍射分析,根据Ozawa等转化率法和等温转变动力学研究了ZrO2含量对BAS系微晶玻璃析晶和晶型转变的影响。
3.
The phase transformation of TiO 2 and the effect of composite mode of SnO 2 on phase transformation of TiO 2 have been investigated by TG-DTA and XRD.
本文研究了以硫酸氧钛 (TiOSO4·nH2 O)和氯化亚锡 (SnCl2 ·2H2 O)为原料 ,TiO2 和SnO2 以不同方式复合时SnO2 对TiO2 晶型转变的影响。
6)  crystal phase transformation
晶型转变
1.
The influence of thermal treatment parameters,such as the heating temperature and duration,on the crystal phase transformation of γ-MnO2 was studied.
采用热处理方式对γ-MnO2晶型转变进行了研究,考察了温度和时间对γ-MnO2晶型转变的影响。
2.
In this research, thechemical precipitation-crystal phase transformation method was utilizedto prepareβ-MnO_2 satisfied the demand on chemical purity, particle size,morphology and crystal configuration.
本研究通过采用化学沉淀——晶型转变法制备出了在化学纯度、粒度形貌和晶型结构均符合要求的β-MnO_2。
补充资料:炸药转晶
分子式:
CAS号:

性质:炸药晶型转化的过程。有些炸药系以几种晶型存在,为了保证产品质量和使用、贮存的安全,常需将其转化为合适的晶型。如奥克托今是一种同质多晶体,具有α,β,γ及δ四种晶型,粗产品多为α晶型或几种晶型的混合物,但只有β晶型在室温下稳定,且机械感度较低,能满足使用要求。因此需将奥克托今粗品精制及转晶,使之全部成为β型产品。通常采用溶剂转晶法,硝酸转晶法或废酸转晶法。

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