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金刚石的成核生长
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  diamond nucleation and growth
     It is found by the research that Fe_3O_4 and FeO were formed by oxidation and reduction between iron oxide coating on iron catalyst surface and carbon source of graphite at 5.7GPa and 1600℃,with some iron melted and exuded out,its contact with carbon source of graphite caused diamond nucleation and growth.
     研究发现,在5.7GPa和1600℃的条件下,铁触媒表面的氧化铁包覆层与石墨碳源发生氧化还原反应而生成了F e3O4和F eO,同时包覆层内部的铁熔融渗出,并与石墨碳源接触,促使了金刚石的成核生长
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  “金刚石的成核生长”译为未确定词的双语例句
     The results showed that the Fe_(2)O_(3) layer was deoxidized by graphite to form Fe_(3)O_(4) and FeO at 5.7 GPa and 1600℃. At the same time the iron melted and exuded through the Fe_(2)O_(3) layer,and then contacted with graphite,to realize the nucleation and growth of diamond.
     研究发现在5.7GPa和1600℃的条件下,铁触媒表面的氧化铁包覆层与石墨碳发生了氧化还原反应生成Fe3O4和FeO,同时包覆层内部的铁熔融渗出,并与石墨碳源接触促使了金刚石的成核生长
短句来源
  相似匹配句对
     NUCLEATION AND GROWTH PROCESS OF TEXTURED DIAMOND FILMS
     织构金刚石薄膜成核生长
短句来源
     NUCLEATION AND GROWTH MECHANISMS OF DIAMOND FILM ON SILICON SUBSTRATE
     Si衬底上金刚石薄膜成核生长机理
短句来源
     Nucleation and Growth of Oriented Diamond Films on Nickel Substrates
     镍衬底上定向金刚石成核生长
短句来源
     Phase Diagrams in C-H-N System for Low Pressure CVD Diamond Growth
     C-H-N体系生长金刚石薄膜
短句来源
     THEORETICAL STUDY OF NUCLEATION MECHANISM IN DIAMOND THIN FILMS GROWTH BY LOW PRESSURE VAPOR PHASE
     低压气相生长金刚石薄膜成核机理研究
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  diamond nucleation and growth
Experiments at 6.0-7.1 GPa and 1500-1700°C were carried out to explore the boundary conditions of diamond nucleation and growth in pyrrhotite-carbon melt-solutions.
      
Mechanisms of CVD diamond nucleation and growth on mechanically scratched Si(100) surfaces
      
The presence of various hydrocarbon species in the plasma and their reaction with atomic, excited or molecular hydrogen on the substrate surface decide the mechanism of diamond nucleation and growth.
      
Effect of deposition conditions on diamond nucleation and growth.
      
In this effort, static magnetic fields in excess of 15 T are observed to direct these carbon and metal intermediary microstates to promote nano-diamond nucleation and growth at atmospheric pressure and temperature of 900°C.
      
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By measuring the resistance of the reaction cell continuously,the progress of dia-mond synthesis under various HPHT was detected. The resistivity may vary with the everchang-ing phase of the materials in the celi and be closely connected to the nucleation and growth of dia-mond.Such a innovated technique is highly valued for the possibility to know what is happeningin the enclosed HPHT reaction cell while the process of synthesis is progressing.

通过时人造金刚石合成腔内材料电阻率变化的某些宏观规律研究,分析了在不同高温高压条件下,合成腔内所发生的相变过程。本文采用的研究方法,表明了对封闭的高温高压腔内所发生的反应从外部进行动态连续观测的可能性与价值,为研究人造金刚石成核、生长的规律提供了较好的手段。

High quality diamond films were deposited on 75Si-Fe substrate by hot filament chemical vapor deposition. The results of SEM and Raman spectroscopy indicated that gorwth of diamond has the intensive selectivity on the surface of 75Si-Fe substrate. Diamond pew more slowly in the region of primary silicon phase L with 96% St (Wt. ) ]. Nucleation density of diamond on the region of FeSi2 phase [with 53% St (wt. )] was higher than the former case by more than an older of magnitude. Preliminary analysis about this...

High quality diamond films were deposited on 75Si-Fe substrate by hot filament chemical vapor deposition. The results of SEM and Raman spectroscopy indicated that gorwth of diamond has the intensive selectivity on the surface of 75Si-Fe substrate. Diamond pew more slowly in the region of primary silicon phase L with 96% St (Wt. ) ]. Nucleation density of diamond on the region of FeSi2 phase [with 53% St (wt. )] was higher than the former case by more than an older of magnitude. Preliminary analysis about this phenoma was given.

首次在工业75硅铁上用热丝法气相沉积出了较好的金刚石薄膜。SEM、Raman检测表明,金刚石薄膜有强烈的选择性生长。初生硅区域[含硅96wt.%]金刚石成核生长缓慢,FeSi2区域[含硅53wt-%]成核密度约高前者一个数量级以上。本文对上述现象作了初步理论分析。

Using the same composition of fragmented and spheroidal powder catalyst,as raw materials,the diamond synthesises have been studied contrastly by the cubic high pressure apparatus.The experimental result shows that the synthesis process parameters of fragmented powder catalyst is more stable and easy to operate than that of spheroidal powder catalyst.The experimental phenomenon has been explained by the temperature changeing in synthesis cubic during the diamond's nucleation and growth.

采用相同成分体系的片状、球状Ni-Mn-Cu粉末触媒体为原料,在六面顶压机上进行人造金刚石高温、超高压合成的对比实验。结果表明:具有片状等不规则形状的NiMnCu粉末触媒合成工艺较球状同类粉末触媒合成工艺更稳定、易于掌握。针对上述结果,结合金刚石成核、生长过程中合成腔体内温度变化对上述实验结果进行了讨论。

 
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