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特征吸收峰    
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  characteristic absorption peaks
    The presence of Si-H bonds in hydrogen FZ silicon single crystals was confirmed by measurements of infrared absorption spectrum. Three characteristic absorption peaks were found at 4.51, 4.68 and 5.13 μm.
    通过红外吸收光谱的测定,证实了氢气氛浮区硅单晶中存在硅氢键,三个特征吸收峰在4.51,4.68和5.13μm波长处。
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  characteristic absorption peaks
Spectrophotometric tracings of deoxycholate-solubilized matrix vesicles showed no characteristic absorption peaks or maxima belonging to any of the cytochrome complex components.
      
In contrast to common inorganic pigments, like Fe2O3, these pigments exhibit well-structured characteristic absorption peaks which allow their recognition.
      
IR studies of these glasses show characteristic absorption peaks corresponding phosphate and vanadium vibrations in the network.
      
Initially, both films lost about 36% weight within 96 h, which also correlated well with the loss in the characteristic absorption peaks in the region of the infrared spectrum typical of biopolymers.
      
Complete disappearance of the characteristic absorption peaks ofpyridinewas found and no new peaks were produced.
      
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The presence of Si-H bonds in hydrogen FZ silicon single crystals was confirmed by measurements of infrared absorption spectrum. Three characteristic absorption peaks were found at 4.51, 4.68 and 5.13 μm. By analysing theoretical calculations[3,4], it is believed that hydrogen atoms in silicon lattice are situated on several interstitial sites. Investigation showed that the Si-H bonds formed in crystal growth influences implicitly on the crystal perfection, and it was discovered that there exists a close relationship...

The presence of Si-H bonds in hydrogen FZ silicon single crystals was confirmed by measurements of infrared absorption spectrum. Three characteristic absorption peaks were found at 4.51, 4.68 and 5.13 μm. By analysing theoretical calculations[3,4], it is believed that hydrogen atoms in silicon lattice are situated on several interstitial sites. Investigation showed that the Si-H bonds formed in crystal growth influences implicitly on the crystal perfection, and it was discovered that there exists a close relationship between the production, of defects by hydrogen and the breakdown of hydrogen-associated bonds at high temperature.

通过红外吸收光谱的测定,证实了氢气氛浮区硅单晶中存在硅氢键,三个特征吸收峰在4.51,4.68和5.13μm波长处。根据有关的理论计算报道分析,认为氢原子在硅晶格中处于几种间隙位置。研究表明这种在晶体生长中形成的硅氢键对晶体完整性隐含着影响,并发现硅单晶中氢致缺陷的形成与硅氢键在高温下的断裂有密切关系。

The frequencies of two characteristic IR absorption peaks P_1(620~642cm~(-1)) andP_3 (540~585cm~(-1)) are found to be closely related to the oxygen content in YBa_2Cu_3O_x. The different frequency ranges of P_1 and P_3 peaks that correspond to orthorhombic, tetragonal and orthorhombio-tetragonal phases of the material are observed. A simple model based on the experimental results is proposed to explain the S-shaped curve of T_c vs x.

YBa_2Cu_3O_x红外吸收谱中有两个特征吸收峰P_1(620~642cm~(-1))、P_3(540~585cm~(-1)),它们的频率和YBa_2Cu_3O_x中的氧含量密切相关,并且P_1、P_3吸收峰的频率在不同范围内分别对应YBa_2Cu_3O_x的正交相、四方相及正交相向四方相的过渡。根据实验结果,我们提出了一个简单模型来解释YBa_2Cu_3O_x的T_c值与其氧含量x之间的S形关系曲线。

Using infrared absorption spectrometry,it is studied that solid phase reaction of solid-solution KTa0.4Nb0.6O3 ferroelectric ceramic material in calcining period.By obserying production process of absorption peak of KTN Oxygen octahedron center ion and oxygen ion bonds,new synthetic compound is determined.Comparing with x-ray diffraction structure analysis,with the dependence of the ceramic density for calcining temperature.we find that the infrared absorption spectrometry provides another method of determination...

Using infrared absorption spectrometry,it is studied that solid phase reaction of solid-solution KTa0.4Nb0.6O3 ferroelectric ceramic material in calcining period.By obserying production process of absorption peak of KTN Oxygen octahedron center ion and oxygen ion bonds,new synthetic compound is determined.Comparing with x-ray diffraction structure analysis,with the dependence of the ceramic density for calcining temperature.we find that the infrared absorption spectrometry provides another method of determination calcining temperature of ferroelectric ceramics.

利用红外吸收光谱分析方法,研究固溶体钽铌酸钾铁电陶瓷原料在预烧阶段中的固相反应,观察KTN材料的中心离子与氧离子键的特征吸收峰的生成过程,判断固相反应完成的程度,确定KTN陶瓷的预烧温度,与X射线衍射结构分析和预烧温度对瓷体密度的影响结果比较,发现红外吸收光谱分析方法是确定铁电陶瓷预烧温度的另一种可靠方法。

 
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