2) 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。
3) 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。
4) 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。
5) flow pattern transition
流型转变
1.
The numerical analysis shows flow pattern transition location propagates downstream ward for lower void fraction while .
从一维气液两相流守恒方程出发 ,应用气液两相流漂移流模型 ,推导了空泡率双曲型守恒方程 ,用特征线法数值求解气液两相流空泡率分布的传播过程 ,对传播稳定性和流型转变进行讨论 。
6) geometric structure change
构型转变
补充资料：半定型
半定型
semi-definite form
半定型[”‘·山刃顾te fonn;n0Jlyo。伴解几。H“翻和pMaj 一个有序域上的二次型(qUa山ratic follll)q，它表现为只是非负的域元素或只是非正的域元素.在前一情形，这个型称为非负定的(~巾e乎ti代defi.面te)〔q(x))O对一切x)，在后一情形称为非正定的(non一Positi祀d币nite ql坦dratic)(g(x)(0对一切x).更常见的是考虑实数域R上的半定型.对于域C来说，可以类似地定义(非负和非正)半定Her而te二次型的概念(见Her而te型(Herhat妞nform)). 如果b是一个对称双线性型(bilinear form)或Her而te型使得q(工)二b(x，、)是一个半定型，则b有时也称为(非负或非正)半定型.如果q是向量空间V内一个二次或Her呱e半定型，则N二王x‘v:q(x)二0}是一个子空间，它与b的核相等，而所给的型自然地在V/N上诱导一个正定或负定型. 0 .A.HBa月QBa撰【补注】“非负定’也称为正半定(p仍itives喇~defi-nite)，“非正定”也称为负半定(negatiw~一del{-正te)，郝钠新译
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参考词条