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synthetic opal
相关语句
  合成蛋白石
     In order to increase the refractive index contrast of the electrolyte, inverted opal is prepared by utilizing a synthetic opal as a template. Finally, we discuss applications of photonic crystals.
     为了提高电解质的折射率反差,以合成蛋白石为模板剂制备反相蛋白石的方法,最后论述了光子晶体的应用前景。
短句来源
  “synthetic opal”译为未确定词的双语例句
     A new method is proposed to modify the photonic band gap of synthetic opal.
     报道了一种新的调节二氧化硅光子晶体带隙的方法;
短句来源
     A new method has been proposed to modify the photonic band gap of synthetic opal.
     本文提出了一种新的调节人工欧泊晶体的光学带隙的方法。
短句来源
  相似匹配句对
     Exploration of the Hygroscopicity on Synthetic Fibre and Polymer Blending Opal
     蛋白石共混合成纤维与聚合物吸湿性的探讨
短句来源
     Synthetic product T.
     作者将合成的T.
短句来源
     Synthetic biology
     合成生物学
短句来源
     Opal in Australian
     澳大利亚的欧泊
短句来源
     A new method is proposed to modify the photonic band gap of synthetic opal.
     报道了一种新的调节二氧化硅光子晶体带隙的方法;
短句来源
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  synthetic opal
The characteristics of stimulated globular scattering such as the frequency shift, threshold, and conversion efficiency are studied in photonic crystals (synthetic opal matrices and opal nanocomposites) at different temperatures.
      
We examined synthetic opal crystals and those filled with nonlinear liquids.
      
A variety of lattices of semiconductor nanoparticles was formed in the synthetic opal.
      
Inverse gold photonic crystals were fabricated from synthetic opal templates composed of 290 nm silica spheres.
      
It has been found that on exposure of specimens of synthetic opal to UV radiation, luminescence is excited in them (337 nm) that has spectral maxima at 400 and 500 nm.
      
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This article describes the examination of natural, synthetic and plastic simulated opals by basic gemmological testing , X-ray fluorescence analysis, infrared absorption spectra and thermal analysis.Specific gravity , 5851 , 5 730, 4 700, 1730 cm-1 infrared absorption spectra and trace elements Cl, Zretc are main characteristies for identifyinS natural opal and various synthetic opals. The characteristicsmentioned above also prove that Gilson opal is far lower than natural opal...

This article describes the examination of natural, synthetic and plastic simulated opals by basic gemmological testing , X-ray fluorescence analysis, infrared absorption spectra and thermal analysis.Specific gravity , 5851 , 5 730, 4 700, 1730 cm-1 infrared absorption spectra and trace elements Cl, Zretc are main characteristies for identifyinS natural opal and various synthetic opals. The characteristicsmentioned above also prove that Gilson opal is far lower than natural opal in water content.

通过常规宝石学测试、X荧光光谱分析、红外吸收光谱分析和热曲线分析,研究了天然欧泊、合成欧泊和塑料欧泊的物理化学特征和谱线特征,从而提出了相对密度值、红外5851,5730,4700,1730cm-1吸收峰及4400~3700cm-1处吸收带、微量元素Cl,Zr等是欧泊天然品和合成品的主要鉴别特征,同时也证明了吉尔森合成欧泊的含水量远远低于天然欧泊。

The opal crystalline state and colour patch have always been a hot issue in the gemmological community. However, very few literatures are focused on origins of the “silky” and “honeycomb_like cellular” colour patches, an important feature for the differentiation between natural and synthetic opals. For this reason, the authors tested and analyzed many opal samples using conventional gemmological test, SEM, and XRD. The research shows that the opal is in a continuous gradual changing state...

The opal crystalline state and colour patch have always been a hot issue in the gemmological community. However, very few literatures are focused on origins of the “silky” and “honeycomb_like cellular” colour patches, an important feature for the differentiation between natural and synthetic opals. For this reason, the authors tested and analyzed many opal samples using conventional gemmological test, SEM, and XRD. The research shows that the opal is in a continuous gradual changing state ranging from the noncrystalline to the crystallite to the sub_microscopic cryptocrystalline and finally to the cryptocrystalline. In addition, no distinct boundary is present between each two states. Furthermore, the opal may exist as an aggregate in all these different states. In this paper, the authors propose a gemological criterion to differentiate between the opal and the chalcedony, and also show different mechanisms for the formation of these two different colour patches. The “silky” colour patch occurs when the light is dispersed from the microscopic fissures inside the natural opal, but the “honeycomb_like cellular” colour patch is determined by the distribution of the SiO 2 spheres and the light transmittance characteristic of the spheres themselves within the synthetic opal. The understanding of the origins of these two colour patches has provided us with the theoretical basis for the differentiation between natural and synthetic opals.

欧泊的结晶状态和色斑问题一直以来是人们探讨的重要问题 .对于区分天然欧泊与人工合成欧泊的重要鉴别特征“丝绢状”和“蜂巢状”色斑的成因问题 ,研究甚少 .通过宝石学常规测试、扫描电镜、X -射线粉晶衍射等测试手段 ,进行测试和分析 ,结果表明 :欧泊是由非晶态→雏晶→亚显微隐晶态→隐晶态的这种连续渐变的状态构成 ,各状态之间并无截然的界限 ,并且可以是这些不同状态的集合体 ;提出了欧泊与玉髓之间的宝石学界定标准 ,还揭示了两种色斑形成的不同机制 :“丝绢”是由天然欧泊内部的显微构造裂隙对光产生散射而形成的 ,而“蜂巢”是由合成欧泊自身结构中SiO2 球体排布与球体本身透光性决定的 .对这两种色斑成因的揭示 ,为欧泊鉴定提供了理论依据 .

PLZT inverse opal materials were synthesized by sol-gel process. Synthetic opals from monodisperse sub-micrometer polystyrene spheres were used as template, and sol precursor was infilled in the template. The infilled template was calcined at final temperature of 800℃. By this method, the PLZT inverse opal materials with 280nm periodical structure were prepared from opal template of 400nm polystyrene microspheres in diameter.

介绍了一种sol-gel方法合成PLZT反蛋白石结构。以单分散的聚苯乙烯亚微米球人造蛋白石为模板,通过调整的溶胶-凝胶方法制备PLZT溶胶,再将溶胶前驱体填充在模板中。填充后的模板缓慢升温到750℃煅烧,排除有机成分并使PLZT结晶。通过这种方法,可以借助微球直径为400nm的模板得到孔隙直径在280nm的PLZT反蛋白石结构材料。

 
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