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x-ray powder    
相关语句
  x射线粉末
    Research on Obtaining the Refined X-ray Powder Diffraction Pattern and Indices of [Co(NH_3)_5Br]Br_2
    配合物[Co(NH_3)_5Br]Br_2的精密X射线粉末衍射与指标化研究
短句来源
    The synthesis of Mg4Nb2O9 by solid state reaction at various temperature from 900℃ to 1400℃ was investigated using X-ray powder diffraction.
    Mg4Nb2O9具有与α-Al2O3相同的刚玉型晶体结构,可望成为取代氧化铝陶瓷的新一代高Q值基板陶瓷。 在900~1400℃温度范围内,合成了Mg4Nb2O9化合物,采用X射线粉末衍射法进行了相结构分析。
    At first, dielectric ceramics Ba_4iNb_3O_(12) and Ba_3LaM_3O_(12)(M=Nb;Ta) hexagonal perovskite-related structures were prepared by the conventional solid-state reaction route. The crystal structure of new compound Ba_3LaTa_3O_(12) was determined through Rietveld X-ray powder diffraction method using Fullprof-Suite program.
    首先采用固相法合成了Ba_4LiNb_3O_(12)和Ba_3LaM_3O_(12)(M=Nb,Ta)纯相,采用Fullprof-Suite程序对新化合物Ba_3LaTa_3O_(12)进行了X射线粉末衍射Rietveld晶体结构精修。
短句来源
    In order to search for the crystal growth method of Bi_2Sn_2O_7, a preliminary study of thephase relation of Bi_2O_3-SnO_2 system has been made with differential thermal analysis,X-ray powder technique and high temperature microscope.
    为了探索Bi_2Sn_2O_7的晶体生长方法,应用差热分析(DTA)、淬火、X射线粉末照相和高温显微镜方法对Bi_2O_3-SnO_2系统在较宽组成范围的相关系进行了初步研究。
短句来源
    The glass forming region of Ge-Ga-S glass: Ge 20-40, Ga, 0-15, S 55-70 (atom %) has been identified by using rapid quenching technique accompanied by X-ray powder diffraction analysis.
    通过熔体淬冷观察和X射线粉末衍射,测定了Ge-Ga-S系统的璃璃形成区。 该系统的玻璃形成的成分范围为:Ge20~40,Ga0~15,S55~70(原子%)。
短句来源
更多       
  x射线粉末衍射
    Research on Obtaining the Refined X-ray Powder Diffraction Pattern and Indices of [Co(NH_3)_5Br]Br_2
    配合物[Co(NH_3)_5Br]Br_2的精密X射线粉末衍射与指标化研究
短句来源
    The synthesis of Mg4Nb2O9 by solid state reaction at various temperature from 900℃ to 1400℃ was investigated using X-ray powder diffraction.
    Mg4Nb2O9具有与α-Al2O3相同的刚玉型晶体结构,可望成为取代氧化铝陶瓷的新一代高Q值基板陶瓷。 在900~1400℃温度范围内,合成了Mg4Nb2O9化合物,采用X射线粉末衍射法进行了相结构分析。
    At first, dielectric ceramics Ba_4iNb_3O_(12) and Ba_3LaM_3O_(12)(M=Nb;Ta) hexagonal perovskite-related structures were prepared by the conventional solid-state reaction route. The crystal structure of new compound Ba_3LaTa_3O_(12) was determined through Rietveld X-ray powder diffraction method using Fullprof-Suite program.
    首先采用固相法合成了Ba_4LiNb_3O_(12)和Ba_3LaM_3O_(12)(M=Nb,Ta)纯相,采用Fullprof-Suite程序对新化合物Ba_3LaTa_3O_(12)进行了X射线粉末衍射Rietveld晶体结构精修。
短句来源
    The glass forming region of Ge-Ga-S glass: Ge 20-40, Ga, 0-15, S 55-70 (atom %) has been identified by using rapid quenching technique accompanied by X-ray powder diffraction analysis.
    通过熔体淬冷观察和X射线粉末衍射,测定了Ge-Ga-S系统的璃璃形成区。 该系统的玻璃形成的成分范围为:Ge20~40,Ga0~15,S55~70(原子%)。
短句来源
    The crystallized phases analysed by X-ray powder diffraction are Ga2S3 GeS and GeS2. Optical and electron microscopies have been used to observe the morp-hdogy of the samples.
    用X射线粉末衍射鉴定出晶相为Ga_2S_3,GeS和GeS_2。
短句来源
更多       
  x-射线粉末
    They were characterized by X-ray powder diffraction (XRD), transmission electron microscopy (TEM) and high-resolution transmission electron microscopy (HRTEM).
    产物经X-射线粉末衍射(XRD)、透射电子显微镜(TEM)和高分辨电子显微镜(HRTEM)表征。
短句来源
    The phase equilibrium relationships in the system La_2O_3-BeO were examined by quenching method together with microscopic and X-ray powder techniques.
    采用淬火法以及显微镜和X-射线粉末法研究了La_2O_3-BeO系统的相关系,并作出相图。
短句来源
    The formation of spinel com-POunds MeqO4(M = Mn, Cu, Zn, Cd, Ni, Mg) have been confirmed by thermal analisis, X-ray powder diffraction and IR spec-tra.
    本文报道了用草酸盐先驱物制备尖晶石型化合物MCo2O4(M=Mn,Cu,Zn,Cd.Ni,Mg)的方法。 用热分析、X-射线粉末衍射和IR光谱证实了尖晶石型化合物MCo2O4的形成;
短句来源
    The adduct Na_2SO_4·H_2O·0.5H_2O_2 was characterized via infrared fourier spectrometer with the type of Nicolet NEXUS 4704, and X-ray powder diffraction with the type of D/MAX-3B. This research was very important for further investigation on the adduct Na_2SO_4·H_2O·0.5H_2O_2.
    在NicoletNEXUS4704傅立叶红外光谱仪上测定了Na2SO4·H2O·0.5H2O2的红外光谱,在D/MAX-3B型X-射线衍射仪(RIGAKU)上测定了其X-射线粉末衍射图谱,为Na2SO4·H2O·0.5H2O2的深入研究提供了依据.
短句来源
    CNT/FeNi nanocomposites were synthesized using carbon nanotubes as templates. X-ray powder diffraction(XRD)and Transmission electron microscopy(TEM)were used to characterize the phase and morphology of CNT/FeNi nanocomposites.
    以碳纳米管为模板合成CNT/FeNi复合纳米材料,用X-射线粉末衍射(XRD)和透射电镜(TEM)对CNT/FeNi复合纳米材料的物相和形貌进行表征,用循环伏安法研究了CNT/FeNi复合纳米材料的电化学过程.
短句来源
  粉晶x射线
    Furthermore, their structure and dielectric properties were studied. First, Ba6-xLnxTi2+xTa8.x03o (x=l, 2; Ln=La, Sm, Nd, Y) compounds were synthesized by high temperature solid state reaction technique and characterized by chemical analysis, scanning electron microscope (SEM), x-ray powder diffraction (XRD).
    首先,采用固相反应法合成了Ba_(6-x)Ln_xTi_(2+x)Ta_(8-x)O_(30)(x=1,2;Ln=La,Sm,Nd,Y)系钽酸盐陶瓷。 通过化学分析、扫描电镜(SEM)、密度测定、粉晶X射线衍射(XRD)进行了成分与结构分析。
短句来源
    Firstly, Ba5LnZnM9O30 compounds were synthesized by high temperature solid-state reaction technique and characterized by scanning electron microscope (SEM), x-ray powder diffraction (XRD) and chemical analysis.
    首先,采用固相反应法合成了Ba_5LnZnM_9O_(30)(Ln=Nd,La,Sm,Y:M=Nb,Ta)系列铌、钽酸盐陶瓷。 通过扫描电镜(SEM)、粉晶X射线衍射(XRD)等手段进行了成分与结构分析。
短句来源
    Firstly, Sr5LnTi3Ta7O30 (Ln=Nd, La, Sm, Y) compounds were synthesized by high temperature solid state reaction technique and characterized by scanning electron microscope (SEM), x-ray powder diffraction (XRD) and chemical analysis.
    在化合物可行性理论分析的基础上,采用固相反应法合成了Sr_5LnTi_3Ta_7O_(30)(Ln=La,Nd,Sm,Y)系列钽酸盐陶瓷。 通过扫描电镜(SEM)、粉晶X射线衍射(XRD)、化学分析进行了成分与结构分析。
短句来源
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  x-ray powder
X-ray powder diffraction results show that the as-grown SrWO4 single crystal belongs to tetragonal system and I41/a space group.
      
The structures of the CdSe quantum dots were determined by X-ray powder diffraction (XRD) and transmission electron microscopy (TEM).
      
The thermal decomposition of CeO2 nanocrystalline precursor prepared by chemical precipitation method was investigated using thermo-gravimetric/differential scanning calorimetry (TG/DSC) and X-ray powder diffraction (XRD).
      
The sample was characterized by X-ray powder diffraction and transmission electron microscopy (TEM).
      
The changes in the physicochemical properties of MoO3 have been investigated using techniques such as X-ray powder diffraction (XRD), field emission scanning electron microscopy (FE-SEM) and ultraviolet and visible spectroscopy (UV-vis).
      
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The phase equilibrium relationships in the system La_2O_3-BeO were examined by quenching method together with microscopic and X-ray powder techniques. Two binary compounds: La_2O_3·2BeO and 3La_2O_3·2BeO have been identified. The latter is able to take up excess BeO in solid solution, the homogeneous region of which extends over the composition range of 3La_2o_3·2BeO-La_2O_3·BeO. The melting point of La_2O_3.2BeO was determined to be 1363±3℃, whereas 3La_2O_3·2BeO melts incongurently at 1510±10℃. Three...

The phase equilibrium relationships in the system La_2O_3-BeO were examined by quenching method together with microscopic and X-ray powder techniques. Two binary compounds: La_2O_3·2BeO and 3La_2O_3·2BeO have been identified. The latter is able to take up excess BeO in solid solution, the homogeneous region of which extends over the composition range of 3La_2o_3·2BeO-La_2O_3·BeO. The melting point of La_2O_3.2BeO was determined to be 1363±3℃, whereas 3La_2O_3·2BeO melts incongurently at 1510±10℃. Three invariant points have been located at 1356±2℃, 40.8 mole% LaO_(1.5); 1362±4℃, 51 mole% LaO_(1.5); and 1510±10℃, 66 mole% LaO_(1.5); with the coexistence of BeO-La_2O_3·2BeO-liquid; La_2O_3·2BeO-3La_2O_3·2BeO_(s.s)-liquid;and 3La_2O_3·2BeO-La_2O_3-liquid respectively.Indexing of the X-ray powder patterns reveals that La_2O_3·2BeO and 3La_2O_3·2BeO belong to orthorhombic and hexagonal symmetry respectively. Their lattice parame-ters and crystallo-optic properties are given.The formation and stability of lanthanum beryllates were discussed in view of crystal chemical principles. In comparison with the corresponding silicates as well as borates the lower stability of lanthanum beryllates can be ascribed mainly to the lower electrostatic binding strength of the Be-O bond, which would account for the liability of dissociation of beryllium-oxygen polyacidic ions at high temperatures.

采用淬火法以及显微镜和X-射线粉末法研究了La_2O_3-BeO系统的相关系,并作出相图。在这个系统中包含有La_2O_3·2BeO和3La_2O_3·2BeO两个化合物,后者可以溶解过量的氧化铍成固溶体,均相区域扩展于3La_2O-3·2BeO-La_2O_3·BeO成份范围内。 La_2O_3·2BeO的熔点是1363±3℃,而3La_2O_3·2BeO在1510±10℃分解熔融。三个不变点是:1356±2℃、40.8%LaO_(1.5)(BeO-La_2O_3·2BeO-液体);1362±4℃、51%LaO_(1.5)(La_2O_3·2BeO—3La_2O_3·2BeO固溶体—液体);和1510±10℃、66%LaO_(1.5)(3La_2O_3·2BeO-La_2O_3-液体)。 利用X一射线粉末法衍射数据,确定La_2O_3·2BeO与3La_2O_3·2BeO分别属于斜方晶系和六方晶系,并测定了它们的结晶光学性质。 从结晶化学的观点讨论了铍酸镧的形成及其稳定性。与相应的硅酸盐和硼酸盐相比较,由于铍氧镧具有较低的静电键强,可以说明在高温时铍酸镧的分解熔融行为。

Reaction sintered Si_3N_4-SiC has been studied with silicon and carbon powder as start-ing materials. Some physical properties and high temperature strength of the specimens ha-ve been determined.Thick specimens prepared with such materials may be nitrided morecompletely than those with silicon powder alone. X-ray powder diffraction analysis showsthat reaction sintering Si_3N_4-SiC consists of a large portion of α-Si_3N_4 With β-Si_3N_4 andβ-SiC in minor amounts. The role of carbon has been...

Reaction sintered Si_3N_4-SiC has been studied with silicon and carbon powder as start-ing materials. Some physical properties and high temperature strength of the specimens ha-ve been determined.Thick specimens prepared with such materials may be nitrided morecompletely than those with silicon powder alone. X-ray powder diffraction analysis showsthat reaction sintering Si_3N_4-SiC consists of a large portion of α-Si_3N_4 With β-Si_3N_4 andβ-SiC in minor amounts. The role of carbon has been preliminarily discussed.

以Si+C作为原料,研究了反应烧结氮化硅-碳化硅,测量了一些物理性能和高温强度。这种材料与反应烧结氮化硅相比,能使尺寸较厚的制品氮化完全。X射线分析指出,这种材料是由大量的α-Si_3N_4和少量β-Si_3N_4、β-SiC组成。对碳的作用进行了初步讨论。

The pseudo-binary system KIO_3-CsIO_3 has been studied by means of XRD and DTA.A con-tinuous solid solution was formed at temperatures between the melting point and the de-composition temperature(330℃), and remained metastably at room temperature for quite along period.The solid solution finally decomposed into a mixture of two phases after abouthalf year storing at room temperature. The lattice spacing variation of the solid solutionwith its composition has been detected by means of X-ray powder method....

The pseudo-binary system KIO_3-CsIO_3 has been studied by means of XRD and DTA.A con-tinuous solid solution was formed at temperatures between the melting point and the de-composition temperature(330℃), and remained metastably at room temperature for quite along period.The solid solution finally decomposed into a mixture of two phases after abouthalf year storing at room temperature. The lattice spacing variation of the solid solutionwith its composition has been detected by means of X-ray powder method.

本文用X射线物相分析和差热分析法研究了KIO_3-CsIO_3赝二元系。在高温时它们形成连续固溶体,并能亚稳到室温。在室温长期搁置(半年以上)会完全分解,形成spinodal型分解的相图。用X射线粉末法测量了此连续固溶体的点阵常数随成分的变化。

 
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