查询词典 crystallization

Caprolactam grafted carbon fibre could improve the initial crystallization temperature and the crystallization rate more obviously than ungrafted carbon fibre. The crystallization of nylon 6 was determined by nucleation. The nonisothermal crystallization dynamics was well coincident with the rule of both of Jeziorny and Liu equation. isothermal crystallization dynamics fitted to Avrami equation.

用广角X射线衍射法对晶型结构进行研究，表明碳纤维使原生态的样品中α晶型的含量降低，结晶度下降，其中接枝聚己内酰胺链段的碳纤维／MC尼龙6原位复合材料中α晶型的含量比未接枝的碳纤维／Me尼龙6原位复合材料的多，结晶度也较大：样品淬火时，碳纤维有利于基体尼龙6结晶时形成γ型晶体，接枝聚己内酰胺链段的碳纤维更有利于基体尼龙6结晶时形成γ型晶体；淬火后的样品在200℃下退火2个小时后γ晶型完全转变为α晶型。

Combined crystallization kinetics analysis obtained via rheometry and morphological observation of crystals growth performed on POM, two different mechanisms of shear-enhanced crystallization for PP/ grafted MWCNTs composites were suggested:(1) at low temperature, strong heterogeneous nucleation plays a dominant role on the. crystallization behavior, which would be saturated at a higher filler content, and the effect of shear-enhanced crystallization was weak;(2) at high temperature, the effect of heterogeneous nucleation was substantially depressed, and the crystallization of the composite was obviously accelerated by pre-shear and the thread-like crystallites were generated earlier than the spherulites.

结合流变测试结果和热台偏光显微镜观察的结晶形貌发展过程，对于PP／G—MWCNTs体系得到了两个不同的剪切影响机理：(1)在低温条件下，强烈的异相成核作用对结晶行为的影响占主导优势，而剪切作用对结晶的影响十分微弱，同时，在填料含量较高是，异相成核作用具有饱和性；(2)在高温条件下，异相成核作用被抑制，复合体系的结晶主要受到预剪切作用的影响，并且纤维状晶体较球晶更易生成。

The results show that, Main crystallization phase of glass ceramic was hedenbergite, and the minor crystallization phases were augite and hypersthene. With increasing boron mud addition, the amount and the size of crystallization phases both gradually increased, the configure of crystallization phases transformed from the branch, the ball, to the block. The transformation from the branch to the ball could improve the properties of glass ceramic, and the transformation from the ball to the block could worsen the properties of glass ceramic.

结果表明：矿渣微晶玻璃的主析晶相为钙铁辉石，次晶相为普通辉石和紫苏辉石；随着硼泥配入量的增加，矿渣微晶玻璃中晶体的析出量和尺寸均逐渐增加，晶体形态由枝晶向球晶及块状晶体过渡；枝晶向球晶转变可以明显改善矿渣微晶玻璃的性能，而球晶向块状晶体的转变则恶化了微晶玻璃的性能。

In the present paper, current research results on the crystallization behavior of cristobalite in silica with different morphologies and different silica matrix composites and different opinions on the mechanism of the crystallization behavior were reviewed. The mechanism of the crystallization behavior was recognized by the surface crystallization in the paper.

本文综述了不同研究人员对不同形态石英与石英基复合材料析晶行为及其差异的研究成果和所持的不同观点，再从"表面析晶"的角度分别对不同形态石英析晶行为的差异性与不同工艺因素对石英基复合材料的影响机制进行了系统阐述。

The content of the irregular bigger drop phase approached to pyrope. It showed that the crystallization and phase separation mechanics of the glass was the nucleation-and-growth transformation and the crystallization is bulk crystallization. The activation energies of phase separation and crystallization were calculated by the modified Kissinger method, about 310.445 KJ/mol and 249.26 KJ/mol respectively. Using the aluminum hydroxide as the reference, we calibrated the phase separation exothermal enthalpy of the quenched and nucleation treated glass, ca

钠镁侣硅系统徽晶玻瑞快速徽晶化机理的研究利用上式求得混合系统中两相的单位体积相变自由能、两相间的表面能和相互作用参数，分别为刁。6753xlo3了zcm3·、3ss.gozzem3、5.316xlo一JzcmZ和一442 xlol，进而求得球形核的临界半径为nnm，以及一个临界核的成核自由能变化为2石89 x10一14/cm3；成核半径16.5纳米时，球形核稳定存在，实测 1752个球形核中最小核半径为20纳米，与计算结果基本吻合。

In this study, tolbutamide was used as a model drug and three different approaches of crystallization methods including cooling crystallization, salting out crystallization, and melting crystallization were used to search for various polymorphs.

文中采用Tolbutamide为模式药物以及三种不同的结晶方法，包括冷却结晶、盐析结晶与熔融结晶以寻找各种多晶型。

The results showed that the ungrafted KF and grafted KF can both induce transcrystallization in PA6/KF composites in the range of the beginning crystallization temperature and approaching melting temperature.The transcrystallization was more fine and perfect at higher crystallization temperature than at lower crystallization temperature,so was the ability of inducing transcrystallization.The grafted KF enhanced the growth ability of transcrystallization and promoted PA6 to form more fine and perfect transcrystallization than the ungrafted KF atrelative lower crystallization temperature. 5.The effect on mechanical properties and fracture morphologies of PA6/KF composites by anionic grafting nylon 6 onto KF was studied.

四、采用PLM 对PA6/KF 复合材料的界面结晶情况加以观察，发现PA6 与许多结晶性聚合物一样，在不受阻碍，没有外力的作用下能形成完整的球晶，KF 可以诱发横晶的生长，其诱发横晶的能力随着结晶温度Tc 的升高而增强，在相同条件下改性KF 所诱发横晶的密度及完整程度明显高于未改性的KF。

Crystallization was the key step in the process of extraction of amygdalin. Considering the purity and crystallization ratio of amygdalin, the amounts of ethanol and ether was chosen as 1:18 and 1:0.4, crystallization time was 36h.

结晶是分离、纯化苦杏仁苷的主要步骤，本文综合考虑结晶纯度和结晶得率，乙醇添加比为1：18，乙醚添加比为1：0.4 ，结晶时间选择36h。

The results show that the glass-ceramics with fibroid structure is produced after definite heat treatment, the main crystallization phase is hedenbergite and anorthite is the minor crystallization phase. The optimal process of heat treatment shows as follows: the nucleation temperature is 850 ℃ and hold time is 100 min, and the crystallization temperature is 980 ℃ and hold time is 80 min. With increasing heat treatment temperature, the FT-IR absorption bands appear obvious split, the aluminum-oxide polyhedron in the glass network changes from [AlO4] to [AlO6]. The titanium ion in the glass network gradually transforms to the 6-coordinated, moreover forms minicrystal of MgTi2O5 and Fe2TiO4 which provides the position of heterogeneous nucleation for the growth of crystal.

结果表明：在一定的热处理条件下可以以基础玻璃制备出主晶相为钙铁透辉石，次晶相为钙长石的纤维状结构的微晶玻璃；最佳的热处理工艺为：850 ℃核化100 min，980 ℃晶化80 min；随着热处理温度的升高，红外吸收带发生明显的分裂；玻璃结构中的[AlO4]向[AlO6]转化；网络结构中的钛离子逐渐转变为六配位，形成微晶相——钛酸镁和钛铁晶石，为晶体的生长提供非均匀形核位置。

Based on an analysis of the sodium chlorate crystallization process currently practised in China,this article analyses and points out technical problems existing in the crystallization process and suggests that crystallization of sodium chlorate with vacuum and cooling be more economic and reasonable and the main direction for future development.

在分析我国目前氯酸钠生产结晶工艺的基础上，指出和分析了当前生产中结晶存在的技术问题，提出采用真空冷却结晶工艺较为经济合理，是今后发展的主要方向

After explaining total design of automated test system for microcircuit , the thesis introduces GPIB standard .

文章在说明了微电路模块自动测试系统的总体设计后，对GPIB标准进行了介绍。

He interceded in my behalf.

他替我说情。