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纯相
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  pure phase
    Inflence of EDTA on The Preparation of Pure Phase δ-FeOOH
    EDTA影响纯相δ-FeOOH制备过程的研究
短句来源
    Effect factors on pure phase of YAG nano-sized powder by coprecipitation method
    共沉淀法制备纯相钇铝石榴石(YAG)纳米粉体中的若干影响因素
短句来源
    When the amount ofstrontium adulterated amounts to 10%,we get Ba_0.9Sr0.1TiO_3 whose dielectric constant is 4times higher than that of BaTiO_3 pure phase.
    制陶试验证实,BaTiO_3纯相掺锶后,居里点普遍前移,介电常数均有所提高,当产品组成为Ba_(0.9)Sr_(0.1)TiO_3时,居里点前移20℃,介电常数为7400,比钛酸钡纯相的介电常数提高了4倍。
短句来源
    The results show that the weight of dried gel keeps constant above 550℃, and there is a phase transformation peak at 562℃, and γ LiAlO 2 with pure phase is formed at this temperature.
    结果表明,焙烧温度在550℃以上试样基本恒重,562℃有一相变峰,生成纯相γLiAlO2超微粉。
短句来源
    Soluble niobate and lead acetate have been chosen for the synthesis of Pb 3Nb 2O 8. Pure phase product could be obtained when the molar ratio of Pb to Nb is close to 1, and concentration of KOH to 1—3 mol/L. PbO appears as the main phase when KOH concentration is greater than 3 mol/L.
    当 n( Pb) / n( Nb)接近 1 / 1 ,KOH浓度在 1~ 3 mol/ L时 ,得到 Pb3 Nb2 O8纯相 ,当 KOH浓度大于 3 mol/ L时容易生成反应活性较低的 Pb O,产生杂相 .
短句来源
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  phase pure
    Phase pure β PbO 2 nanorods with diameter of 10-20 nm and length up to 400 nm with an aspect ratio >20 were synthesized through direct oxidation of Pb(Ac) 2 by NaClO under alkaline conditions.
    利用 Na Cl O在碱性溶液中与 Pb(Ac) 2 进行氧化反应直接合成出直径为 1 0~ 2 0 nm、长度为 40 0 nm、长径比达 2 0以上的纯相 β-Pb O2 纳米棒 .
短句来源
  purity-phase
    Effect of Precipitating Agent on Preparation of Purity-phase Amorphous δ-FeOOH
    沉淀剂对制备纯相δ-FeOOH的影响
短句来源
    On condition that EDTA was presented under room-temperature,only NaOH(whose value of alkali ratio R<0.500)can be used as precipitating agent in the course of preparation of purity-phase amorphous δ-FeOOH with Fe(OH)_2 oxidized by oxygen.
    在室温和EDTA存在的条件下,氧气氧化Fe(OH)2制备纯相的δFeOOH,只能选用碱比(R)小于0.500的NaOH为沉淀剂.
短句来源
    As a result of our tests,under a certain conditions,the value of R of the precipitaing agent had decisive effect on the preparation of purity-phase amorphous δ-FeOOH.
    结果表明,在一特定条件下,沉淀剂的R对制备纯相非晶态δFeOOH起关键的作用.
短句来源
  “纯相”译为未确定词的双语例句
    Preparation of W-Type Ferrite BaZn_(2(1-x))(LiFe)_xFe_(16)O_(27)
    纯相W型铁氧体BaZn_(2(1-x))(LiFe)_xFe_(16)O_(27)的制备
短句来源
    Synthesis of single phase titanium monoxide by reaction between solid phases
    固-固反应合成纯相一氧化钛
短句来源
    The ceramics were characterized by X-ray powder diffraction (XRD)、 Scanning Electron Microscope (SEM)、 density analysis and chemical analysis.
    通过X射线衍射分析(XRD)、扫描电镜(SEM)形貌分析、密度分析和化学分析进行了表征,确定其属于四方钨青铜结构的纯相
短句来源
    The results indicated that the initial pH has more effect on the product at higher pH. At pH 8.6 or 8.5, pure lepidocrocite was obtained; when pH >8.7, the main product is pure goethite.
    结果表明在弱碱性范围内pH值对产物的影响非常敏感,当初始pH值为8.6或8.5时可以得到纯相的γ-FeOOH,当初始pH值升高到8.7时得到的则是纯相的α-FeOOH。
短句来源
    The first section: Novel green-emitting long lasting afterglow Sr_2ZnSi_2O_7:Mn~(2+), R~(3+)(R=Er~(3+), Gd~(3+)) phosphors are prepared by the sol-gel method and their luminescent properties are systematically investigated in this paper.
    溶胶-凝胶法合成的样品在800℃时活性炭气氛中焙烧10小时可得到纯相Sr_2ZnSi_2O_7多晶粉末,这比传统高温固相法的烧结温度低300℃左右; 以250nm为监控波长,Sr_2ZnSi_2O_7 : Mn~(2+)产生了Mn~(2+)绿色发射带,其峰值位于523nm。
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  pure phase
Using 1,4-butanediol as a polyol solvent, nano-sized particles of a pure phase of YAG have been prepared.
      
Nonequilibrium pure phase dynamics for the strong coupling Josephson tunnel junction
      
In addition, by naturally cooling α-TCP, formed at 1300°C within the heating furnace, to room temperature, it was difficult to obtain a pure phase of β-TCP.
      
It is also shown how the depth of recording layer and position of reference plane are related to the phase distribution at reference plane and how the mismatch can be resolved by using a pure phase element.
      
In this paper we apply our theory to the case of simultaneous phase-frequency modulated incident light and compare the results with our foregoing predictions for pure phase modulation.
      
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  phase pure
Preparation and electronic structure of phase pure K3C60
      
Phase pure K3C60 films have been grown using vacuum distillation.
      
Nearly phase pure cBN films were deposited at a H2 flow rate of 10?sccm and bias voltages of -60?V and -70?V.
      
X-ray diffraction showed that the compounds were phase pure.
      
X-ray diffraction showed that the compounds were phase pure.
      
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A kind of W-type ferrite has been prepared by using the coprecipitation me-thod combined with high temperature melting.The influence of preparing conditionson the phase compositions has been reseached.This W-type ferrite can be obtainedthrough the substitution:2 Zn~(2+)(?)Li~++Fe~(3+) for Zn_2-W(BaZn_2Fe_(16)O_(27)).Such a su-bstitution has already been successful in spinal ferrite family.To obtained the pure W-phase ferrite,according to the result of the phase an-alysis of X-ray diffraction,it is necessary...

A kind of W-type ferrite has been prepared by using the coprecipitation me-thod combined with high temperature melting.The influence of preparing conditionson the phase compositions has been reseached.This W-type ferrite can be obtainedthrough the substitution:2 Zn~(2+)(?)Li~++Fe~(3+) for Zn_2-W(BaZn_2Fe_(16)O_(27)).Such a su-bstitution has already been successful in spinal ferrite family.To obtained the pure W-phase ferrite,according to the result of the phase an-alysis of X-ray diffraction,it is necessary to keep pH of the mixed slurry in therange of 8.0-8.5,sintering temperature at 1250-1300℃ and sintering period for20-30 min.The saturation magnetization of the pure W-phase ferrite prepared isσ_s=76Am~2/kg nearly as high as those of the previously known Zn_2-W or Fe_2-Wferrites.

本文报道了用共沉与高温助熔相结合的方法制备一种 W-型六角铁氧体。探讨了制备条件对产品相组成的影响。这种 W-型铁氧体是通过对 Zn_2-W(BaZn_2Fe_(16)O_(27))进行代换:2 Zn_2(?)Li~++Fe~(3+)而得到的,这种代换曾用在尖晶石铁氧体中,并已获得了成功。产品的 X 衍射相分析结果表明,要得到纯相 W-型铁氧体,需要控制共沉浆料 pH=8.0~8.5,烧结温度 T=1250~1300℃,保温期 t=20~30min 并且要打开炉门强制冷却。制得的纯 W 相六角铁氧体的比饱和磁化强度 σ_(?)=76Am~2/kg,接近国外报道的 Zn_2-W 和 Fe_2-W 的比饱和磁化强度值。

The ultrafine LaFeO3 with particle size of 12- 75nm was prepared by sol-gel method. In the process of gel to ultrafine powder, the weight loss reached 90%. The lowest forming temperature of single phase crystalline LaFeO3 ultrafine powder was observed at 600℃. It was found that the diameter of the ultrafine powder increases significantly with increasing firing temperature. It was discovered from the surface photovoltage spectroscopy that the long-distance ordered crystal structure and the integrated energy band...

The ultrafine LaFeO3 with particle size of 12- 75nm was prepared by sol-gel method. In the process of gel to ultrafine powder, the weight loss reached 90%. The lowest forming temperature of single phase crystalline LaFeO3 ultrafine powder was observed at 600℃. It was found that the diameter of the ultrafine powder increases significantly with increasing firing temperature. It was discovered from the surface photovoltage spectroscopy that the long-distance ordered crystal structure and the integrated energy band structure are gradually formed in the internal of the particles with the increase of particle diameter. The smaller of the particles, the more evident of the surface properties.

本文使用溶胶-凝胶法制备了平均粒径为12~75nm的LaFeO_3超微粒子.从凝胶至超微粒子的过程中,失重达90%.纯相晶态的LaFeO_3超微粒子的最低生成温度为600℃.粒子平均粒径随着灼烧温度的升高而显著增大.通过对不同粒径的LaFeO_3超微粒子表面光电压光谱的研究发现,随着粒子粒径的增大,粒子内部逐渐形成长程有序的晶体结构和完整的能带结构.粒子粒径越小,表面特性越明显.

La2o3,PbO,Ni2O3 and CaO have been doped in CdSnO3 Powders by impregnating them with aqueous solutions of their nitrids, respectively, which has an obvious influence on microstructures and phase constituents of gas sensing materials. Conductance and gas sensing propertied of dope CdSnO3 powders are different from that of pure phase CdSnO3. The addition of small amounts of Ni2O3 or PbO to CdSnO3 sensors greatly increases selection to C2H5OH gas at 350℃. Therefore, a good ethanol sensor can be prepared from CdSnO3-based...

La2o3,PbO,Ni2O3 and CaO have been doped in CdSnO3 Powders by impregnating them with aqueous solutions of their nitrids, respectively, which has an obvious influence on microstructures and phase constituents of gas sensing materials. Conductance and gas sensing propertied of dope CdSnO3 powders are different from that of pure phase CdSnO3. The addition of small amounts of Ni2O3 or PbO to CdSnO3 sensors greatly increases selection to C2H5OH gas at 350℃. Therefore, a good ethanol sensor can be prepared from CdSnO3-based materials with proper additives.

采用硝酸盐溶液浸泡方法在CdSnO3粉料中,分别掺入La、Pb、Ni及Ca四种元素的氧化物.实验结果表明,掺杂改变了材料的主晶相、微结构及物相组成,从而导致材料的电导、气敏特性与纯相的CdSnO3有很大区别,其中掺Ni2O3、PbO提高粉料对乙醇的选择性,有可能开发成酒敏传感器.

 
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