非均相成核
- heterogeneous nucleation
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文章提出的成核与长大竞争机制能有效地解释非均相成核等的成核过程。
Furthermore , a new competition conception between nucleation and cell growth can be used to explain the heterogeneous nucleation and the final microcellular constructure .
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对恒定热流下具有温度梯度的非均相成核,沸腾起始的临界半径随着接触角的增加(更疏水表面)而减小,即导致成核更容易发生。
For heterogeneous nucleation with temperature gradient under steady heat flux , it is found that the critical radius decreases with increasing contact angle ( more hydrophobic surface ), making the nucleation easier .
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非均相成核法制备ATO纳米粉末及其性能
Preparation and Characterization of Nanometer ATO Powder by Heterogeneous Precipitation
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采用非均相成核法制备了ATO纳米导电粉末,研究了晶种浓度、反应温度、分散剂对粉末粒径、电阻率等性能的影响;
Effects of crystal-seed concentration , reaction temperature , and dispersants on powder size and resistivity have been investigated .
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采用非均相成核法,在Sn(OH)4晶种上均匀生长Sb掺杂Sn(OH)4,制备纳米ATO粉末。
ATO nanoparticles were prepared from Sn ( OH ) 4 nucleus grew uniformly with Sn ( OH ) 4 and Sb ( OH ) 3 by heterogeneous precipitation .
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由晶体成核理论中均相成核和非均相成核的理论模型分析了镁铝水滑石在不同条件下成核与生长以及表面活性剂在晶体成核过程中所起的作用。
It is analyzed that the nucleation and growth of Mg , Al-hydrotalcite under different conditions by crystal nucleation theory and the role of surfactants in the process of crystal nucleation .
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通过分析非均相成核与均相成核的临界成核半径、临界晶核形成功、成核速率等,说明降低溶液稳定性的主要因素是非均相成核。
The research of Gibbs free energy , critical nucleus radius , nucleation rate of homogeneous nucleation ' and heterogeneous nucleation shows that the main reason decreasing solution stability is heterogeneous nucleation .
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文章阐述了泡核形成的均相成核、固液界面诱导的非均相成核以及空穴成核的机理和模型。
Nucleation and the bubble growth controlling be of key importance in the foaming processing , in this paper , the nucleation mechanism and nucleation model ( including homogeneous nucleation , solid liquid and microcavities induced heterogeneous nucleation ) is presented .