1) phase transitions
晶型衍变
1.
The relations between phase transitions and can-breaking of CTCBE and CB under different crystallization conditionswere investigated.
研究不同冷却结晶条件下CTCBE和CB的晶型衍变与胀罐的关系。
2) icrostructural evolution
枝晶衍变
1.
The microstructural evolution of A356 produced by controlled pouring during partial remelting and isothermal holding was investigated in this study.
研究了控制浇注法制备A356合金半固态枝晶衍变规律,结果表明:原始显微结构对枝晶半固态衍变具有较大影响,对于原始组织粗大的树枝晶合金,即使经过长时间的保温,初生α相仍为枝晶网状结构;而原始组织细小的等轴晶迅速转变为球状结构。
3) 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。
4) 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。
5) crystal transformation
晶型转变
1.
The regularity of HAC strength and crystal transformation are studied when these blending materials are added in the HAC with different quantity.
分析了它们在高铝水泥水化过程中的作用和水化产物的微观形貌 ,以及对高铝水泥水化产物晶型转变的影响 。
2.
The effect of isotactic content on the crystallization at room temperature and crystal transformation of FormⅡto FormⅠwas characterized by infrared differetial scanning calorimetry(DSC),polarized optical microscope and FT-IR spectrophotometer.
通过差示扫描量热仪、偏光显微镜和红外光谱仪研究了室温时全同含量对聚丁烯-1结晶和晶型转变的影响。
3.
The mechanical properties and crystal transformation were investigated at room temperature.
研究了室温时共聚物的晶型转变过程及其力学性能。
6) phase transition
晶型转变
1.
The results show that low temperature heat treatment can improve the dispersivity of ultrafine flake alumina,and can promote the phase transition of alumin.
结果表明:采用低温热处理能改善Al2O3粉体的分散性,并能在一定程度上促进Al2O3的晶型转变;采用高能球磨能在很大程度上改善Al2O3粉体的分散性,并且能极大地促进Al2O3的晶型转变,制备出片状Al2O3粉末。
2.
Thus the temperature of crystal phase transition from anatase to rutile titania was decreased to 870 ℃, the time for complete phase transition was shortened evidently.
硫酸溶解钛铁矿经处理形成钛液 ,在钛液进行常压水解时 ,加入SnCl2 与钛盐制成的复合晶种 ,引入质量分数为 7 0 %的SnO2 作为晶型转变促进剂 ,能有效地使锐钛矿型TiO2 转变为金红石型 ,TiO2 的晶型转变温度降低到 870℃ ,并大大缩短完成晶型转变所需时间 ,避免物料烧结 ,得到大小适中 ,外形规整 ,光学性能良好的金红石型TiO2 。
3.
The β-HMX undergoes a phase transition into δ-HMX before detonation.
HMX发生爆轰前将发生β→δ晶型转变,研究HMX的β→δ晶型转变规律可以加深对HMX的感度、爆轰过程和贮存安全性的认识。
补充资料：多晶型物
分子式：
CAS号：
性质：指由于分子或离子按不同方式排列而形成的晶体。多晶型物在化学性质上没有什么区别，但其物理性质如密度、熔点、溶解度、溶解速度等则有所不同。多晶型物一般有稳定型、亚稳定型与不定型三种。其中亚稳定型常有较高的生物利用度。
CAS号：
性质：指由于分子或离子按不同方式排列而形成的晶体。多晶型物在化学性质上没有什么区别，但其物理性质如密度、熔点、溶解度、溶解速度等则有所不同。多晶型物一般有稳定型、亚稳定型与不定型三种。其中亚稳定型常有较高的生物利用度。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条