The influence of substrate pretreatment methods on the nucleation density of diamond films was studied.
研究了衬底预处理方法对金刚石薄膜成核的影响。
It was found that the nucleation density and the quality of the films are improved greatly using copper mesh as template.
结果发现,采用模板后,金刚石膜的成核密度和质量都得到很大提高。
An ideal was proposed that the quality of vapor deposition diamond films could improved by controlling nucleation density.
并提出了控制成核密度提高沉积质量的思想。
On the basis of the crystal size distribution (CSD) theory, the growth rates, nucleation density and nucleation rates of plagioclase have been worked out.
再根据晶体大小分布理论(CSD),计算出斜长石的晶体生长速率、成核密度及成核速率等岩浆结晶动力学参数;
Based on these results, a kinetic model for diamond nucleation in MPCVD system was proposed. The critical gas pressure corresponding to the highest nucleation density was also discussed.
在此基础上,提出一种MPCVD系统中金刚石成核的动力学模型,并指出对应于最高成核密度有一临界压强存在。
To increase nucleation density, the methods of introducing defects on substrate surface are more effective in the diamond thin films growth by means of the low pressure vapor phase deposition.
在低压气相生长金刚石薄膜过程中,通过在衬底表面引入缺陷,通常是一种行之有效的提高成核密度的方法。
In the present paper, the relation between diamond nucleation density and synthesis conditions is studied for the diamond thin film synthesized by hot filament chemical vapour deposition method.
本文研究了用热灯丝化学气相沉积方法在单晶硅衬底上制备金刚石薄膜时其成核密度与制备条件的关系。
Primary nucleation was the main nucleation mode in the precipitation process. However, secondary nucleation cannot be ignored when the slurry density is high, and the supersaturation is low.
动力学研究表明,在硝酸硫胺沉淀结晶过程中,初级成核是主要的成核方式,当晶浆密度较高且过饱和度很低时,二次成核不能忽视。
The part out of nucleation where some microcracks heal and the density change reversibly may be helpful to interpret the phenomenon that some precursors records appear reverse change.
非集结部分出现部分微裂纹愈合,密度反向变化,有助于解释一些前兆记录在短临阶段记录中出现反向的现象。
A method has been presented to predict the nucleation site density in nucleate boiling based on the investigation of the microstructure of boiling surface.
提出了一种基于沸腾表面微结构分析的预测核态沸腾中汽化核心密度的方法。
The measurement scale and the measurement result here can be viewed as the minimum nucleation diameter and the nucleation site density respectively.
这里的测量尺度和测量结果可以分别被视为最小成核直径和汽化核心密度。
The prediction agrees well with the experimental data and shows that it is the fractal relationship between the nucleation site density and the minimum nucleation radius.
预测结果和实验数据吻合,并且表明汽化核心密度和最小成核半径之间为分形的关系。
When the maximum radius approaches to the minimum, the active nucleation sites density decreases and the nucleation boiling is restrained.
当最大空穴半径趋近于最小空穴半径时,活化核心密度减小,核态沸腾受到抑制。
A new method has been presented to predict the nucleation site density in nucleate pool boiling based on the investigation of the microstructure of boiling surface.
本文提出了一种新的基于沸腾壁面微结构分析的预测核态池沸腾中汽化核心密度的方法。
Gauss distribution function was employed to describe the relation between the density of nucleation sites and the temperature and was integrated to get the grain density at a given undercooling.
通过高斯分布函数描述形核质点密度随温度的分布关系,在给定过冷度时对分布函数求积分可得该时刻的形核密度。
In general, a higher pre existing microcrack density or a lower loading stress rate results in a longer nucleation stage, and therefore, increases the predictability of catastrophic failure event.
一般而言,在相同加载条件下预存微破裂密度越高,或对同一岩石加载速度越慢,对应的断层成核过程就越长,因此最终破坏的可预报性也越高。
In the foam process of cellular plastics, bubble nucleation has decisive effect on cell density and cell distribution, so it is the crucial factor to control the foam quality.
前人对泡沫塑料气泡成核过程的研究基本上都是以经典成核理论为基础进行的。
The liquid superheat limit and vapor subcooling limit in homogeneous nucleation are determined in the present paper by using density fluctuation theory of statistical thermodynamics.
应用统计热力学巨正则系综的密度涨落理论,提出了确定均质沸腾中液体极限过热度和均质凝结中蒸汽极限过冷度的方法。
This paper studies the nucleation mechanism of the target-facing sputtering, and the variation of island-density with such parameters as deposition time and substrate temperature.
本文研究了对向靶溅射薄膜的成核机理。给出了在薄膜的生长初期基板上的岛密度随生长条件(如沉积时间、基板温度)的变化。
The effect of temperature, average residence time and density of sulphate acid were discussed on nucleation rate, growth rate and crystal shape.
分别讨论了结晶温度、平均停留时间、硫酸质量分数等因素对结晶成核速率、晶体成长速率以及晶体形状、大小的影响。
The effect of temperature, average residence time and density of sulphate acid were discussed on nucleation rate, growth rate and crystal shape.
分别讨论了结晶温度、平均停留时间、硫酸质量分数等因素对结晶成核速率、晶体成长速率以及晶体形状、大小的影响。
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