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powder precursor
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  粉末前驱体
     Dissolving V_2O_5 in organic acid solution,the amorphous powder precursor which contained vanadium was obtained by spray drying,and the nanometer V_8C_7 powder was prepared through reduction/carbonization of the precursor powder.
     将V2O5溶解于有机酸溶液中,通过喷雾干燥制得非晶态含钒的粉末前驱体,将前驱体粉末还原/碳化后得到V8C7粉末。
短句来源
     As CrO3 dissolves in organic solvent, the amorphous powder precursor which contains chromium is obtained by spray drying, and the ultrafine Cr3C2 powder is prepared through vacuum reduction or carbonization of the precursor powder.
     将CrO3溶解于有机溶液中,通过喷雾干燥制得非晶态含铬的粉末前驱体,将前驱体粉末真空还原/碳化后得到超细Cr3C2粉末。
短句来源
  “powder precursor”译为未确定词的双语例句
     Study on Kinetics of Crystalline Grain Growth of Cu-Mn Complex Oxides Nanometer Powder Precursor
     纳米铜锰复合氧化物前驱物晶粒生长动力学研究
短句来源
     A powder precursor with Cd: Sn= 1:1 has been prepared by (NH4)2CO3 as a precipitant. The Single-phase of ilmenite type β- CdSnO3 could be obtained by calcining the powder at 750℃ for 15 h.
     用NH4)2CO3作沉淀剂制得Cd:Sn=1:1的粉料,经750℃、15h热处理可得单相钛铁矿型β-CdSnO3。
短句来源
     Solid State Synthesis of Nanometer-Yttria Powder Precursor and Dispersion Stability of Suspension
     纳米氧化钇粉体前驱体固相法合成及其悬浮液分散稳定性
短句来源
     The grain growth kinetic index of Cu-Mn complex oxides nanometer powder precursor prepared by solid-solid state synthesis method is calculated and rules of grain growth is calcined. The average kinetic values are acquired:E≈33.5 kJ/mol,n≈2.80.
     通过对低热固-固化学反应法制备的纳米铜锰复合氧化物前驱物晶粒生长动力学的研究,得到其晶粒生长变化的规律,及晶粒生长激活能和动力学指数的平均值,分别是:E≈33.5kJ/mol,n≈2.80,为其工业化生产提供理论参考依据。
短句来源
  相似匹配句对
     The morphology of tungsten powder inherit that of its precursor powder.
     所制得的钨粉形貌完全遗传了其前驱体的形貌,分别得到球状和层状钨粉。 球状钨粉由纳米颗粒聚集而成。
短句来源
     Precursor Synthesis of Fibrillar Nanocrystalline Nickel Powder
     纤维状纳米镍粉前驱体的合成
短句来源
     Powder electropainting
     粉末电泳涂漆
短句来源
     Powder Coating
     粉末涂料
短句来源
     PRECURSOR-DERIVED CERAMICS
     先驱体陶瓷
短句来源
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  powder precursor
The formation of pure perovskite SrTiO3 practically free from carbonates occurred when the powder precursor was heat treated at temperatures higher than 500°C in static air.
      
Powder precursor gels with composition xZrO2·(100-x)SiO2, with selected values of x=8, 24, 43 and 75 mol%, were processed by sol-gel chemistry.
      
In situ development of SiC-mullite composites in ambient atmosphere from SiC and Al-hydroxyhydrogel powder precursor
      
An emulsion-refinement step has been shown to be effective in "softening" particle agglomerates present in the conventionally processed powder precursor.
      
Hollow spheres of hexagonal ferrite BaCo2Fe16O27 were fabricated through a spray pyrolysis technique using co-precipitation ferrite powder precursor as materials, followed by calcinations in an air atmosphere.
      
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A powder precursor with Cd: Sn= 1:1 has been prepared by (NH4)2CO3 as a precipitant. The Single-phase of ilmenite type β- CdSnO3 could be obtained by calcining the powder at 750℃ for 15 h. T]le G - t property of β-CdSnO3-based sensor suggest that it is a kind of a typical surface-controlled gas an sensing material. The β - CdSnO3- based sensor without adding noble metal as catalyst has a very high sensitivity to reducing gases. Soβ-CdSnO3 is a promising candidate for detecting reducing gases.

用NH4)2CO3作沉淀剂制得Cd:Sn=1:1的粉料,经750℃、15h热处理可得单相钛铁矿型β-CdSnO3。元件的电导-温度(G-t)特征表明β-CdSnO3为典型的表面电阻控制型气敏材料,无需掺贵金属催化剂就对还原性气体响很高的灵敏度。因此,β-CdSnO3很有希望作为一种新型的气敏材料体系。

The effects of using coarse and fine powder precursors of liquid phase composition(BaCuO 2+CuO),and secondary phase SnO 2 to grow texture YBa 2Cu 3O 7-δ (Y123) superconductors by the liquid phase powder melt growth(LPMG) process are investigated. The results indicate that: ① holding the samples for some time at the forming temperature(\%T\-1\%) and melting temperature(\%T\-2\%) of Y123 phase,is helpful for increasing the density and improving the texture growing of Y123; ② comparing...

The effects of using coarse and fine powder precursors of liquid phase composition(BaCuO 2+CuO),and secondary phase SnO 2 to grow texture YBa 2Cu 3O 7-δ (Y123) superconductors by the liquid phase powder melt growth(LPMG) process are investigated. The results indicate that: ① holding the samples for some time at the forming temperature(\%T\-1\%) and melting temperature(\%T\-2\%) of Y123 phase,is helpful for increasing the density and improving the texture growing of Y123; ② comparing to the normal MTG process, the LPMG process reduces \%T\-2\% for fine precursors; ③ some particles with tens to hundreds nanometers in size are found in the texture domains, but most of them stay in the grain boundaries.

研究分别用粗粉及细粉工艺制备的先驱物( 液相组份先驱物粉末(BaCuO2 + CuO) ,异相SnO2) 对高温超导体YBa2Cu3O7- δ(Y123) 液相粉末熔融生长(LPMG) 织构工艺及微结构的影响, 结果表明: 在LPMG工艺熔化前的Y123 成相温区及熔融温区适当保持一段时间,可使样品的密度及结构度得到改善; 在部分样品的晶畴内可以观察到几十到几百纳米量级的微粒, 同时有大量的微粒存在于晶界中

By using carbonaceous aqua mesophase and titanium tetrachloride as starting materials, respectively, the carbonaceous sol and titania sol were prepared. Then the two sols were mixed and dried under supercritical conditions to obtain ultrafine carbonaceous titania aerogel powder precursor. The binary carbon titania powder was characterized by FT IR, TEM and X ray analysis. Results showed that the binary carbonaceous titania powders with particle sizes below 10 nm are homogeneously distributed,...

By using carbonaceous aqua mesophase and titanium tetrachloride as starting materials, respectively, the carbonaceous sol and titania sol were prepared. Then the two sols were mixed and dried under supercritical conditions to obtain ultrafine carbonaceous titania aerogel powder precursor. The binary carbon titania powder was characterized by FT IR, TEM and X ray analysis. Results showed that the binary carbonaceous titania powders with particle sizes below 10 nm are homogeneously distributed, and have higher BET surface area as well as a loose appearance structure.

以炭质水性中间相和四氯化钛为原料 ,分别制取了炭质溶胶 -凝胶和钛溶胶 -凝胶 ,然后将二者充分搅拌混合后 ,再进行超临界干燥制得了二元炭质 /二氧化钛气凝胶粉末前驱体。利用 FT- IR,XRD和 TEM技术对二元炭质 /氧化钛粉末进行了表征。研究结果表明 ,二元炭质 /氧化钛粉末具有小于 10 nm的颗粒尺寸 ,炭和氧化钛混合均匀且具有较高的比表面和疏松的表观结构。

 
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