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sol-gel自燃烧的
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  sol-gel auto-combustion
     The nanocrystalline Ni0.8Zn0.2Fe2O4 was synthesized by a sol-gel auto-combustion method using citric acid as the chelating agents.
     以金属离子的柠檬酸盐为前驱体,通过sol-gel自燃烧的合成方法制备了镍锌铁氧体(Ni0.8Zn0.2Fe2O4)纳米晶体.
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     Since the interacting coping theory and its model were put forward by R.
     R.
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     After R.
     R.
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     Composite technology of sol-gel-CVD for preparation of self-cleaning glass with nano-composite film
     Sol-gel-CVD组合技术制备纳米复合膜洁净玻璃的研究
短句来源
     Controlled Synthesis of TiO_2 Nanometer Powders by Sol-gel Auto-igniting Process and Their Structural Property
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     Sol-Gel Route to Barium Aluminosilicate (BAS) Glass-Ceramics
     Sol-Gel法合成BAS玻璃陶瓷
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  sol-gel auto-combustion
Preparation of nanometer MgO by sol-gel auto-combustion
      
Nanometer MgO was prepared via a sol-gel auto-combustion technique using magnesium nitrate as raw material and citric acid as chelating agent.
      
TEM photographs of synthesized powders from the sol-gel auto-combustion showed that the crystallites were uniform in size.
      
The hexagonal BaNdxFe12-xO19(x=0.1-1.0) fine powders with M-type structure were synthesized by sol-gel auto-combustion high-temperature synthesis method.
      
Influence of citric acid content on magnetic properties of BaFe12O19 powder prepared by sol-gel auto-combustion method
      
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A series of Cu substituted Mg-Zn ferrites nano-powder, (Mg_(0.2)Cu_xZn_(0.8-x))O(Fe_2O_3)_(0.97)(x=0, 0.1, 0.2, 0.3, 0.4), were synthesized by Sol-Gel auto-combustion method, and sintered into dense-ceramics under the conditions of 1 000 °C/4 h. In this paper, Cu doped Mg-Zn ferrites were studied from phase formation, microstructure and magnetic patterns by XRD, SEM and impedance analyzer (HP4194A). Within a limited Cu substitution, it is found that Cu doping is in favor of improving dense-process of sinter...

A series of Cu substituted Mg-Zn ferrites nano-powder, (Mg_(0.2)Cu_xZn_(0.8-x))O(Fe_2O_3)_(0.97)(x=0, 0.1, 0.2, 0.3, 0.4), were synthesized by Sol-Gel auto-combustion method, and sintered into dense-ceramics under the conditions of 1 000 °C/4 h. In this paper, Cu doped Mg-Zn ferrites were studied from phase formation, microstructure and magnetic patterns by XRD, SEM and impedance analyzer (HP4194A). Within a limited Cu substitution, it is found that Cu doping is in favor of improving dense-process of sinter samples and magnetic properties, and affecting microstructure of samples.

采用溶胶-凝胶(Sol-Gel)自燃烧法制备了一系列Cu掺杂Mg-Zn铁氧体纳米粉,(Mg0.2CuxZn0.8-x)O(Fe2O3)0.97(x=0,0.1,0.2,0.3,0.4),并用该纳米粉在1000°C/4h下,烧结成了致密的陶瓷体。该文用XRD和SEM对Cu掺杂的Mg-Zn铁氧体的相结构和显微结构进行了研究。用HP4194A阻抗分析仪研究了烧结样品的磁谱。研究发现,在掺杂一定的Cu有利于促进烧结样品的致密化过程,改善磁性能,并影响样品的显微结构。

The nanocrystalline Ni0.8Zn0.2Fe2O4 was synthesized by a sol-gel auto-combustion method using citric acid as the chelating agents. The analysis methods of FT-IR, XRD, DSC-TG, TEM, wave-guide were used to character the gel and the products. The phenomena of melt, combustion and forming crystal for gel were investigated in the processes of thermo-decomposition. The results show that metal ions and carboxyl are coordinated by the oriented manner. The temperature of decomposition for the gel is 220℃, and the nanocrystalline...

The nanocrystalline Ni0.8Zn0.2Fe2O4 was synthesized by a sol-gel auto-combustion method using citric acid as the chelating agents. The analysis methods of FT-IR, XRD, DSC-TG, TEM, wave-guide were used to character the gel and the products. The phenomena of melt, combustion and forming crystal for gel were investigated in the processes of thermo-decomposition. The results show that metal ions and carboxyl are coordinated by the oriented manner. The temperature of decomposition for the gel is 220℃, and the nanocrystalline is formed after the combustion of the gel. The mixture, which consists of Ni0.8Zn0.2Fe2O4 nanocrystalline and paraffin, has both dielectric loss and magnetic loss in the frequency range of 8-12GHz. The reflectivity of spinel nanocrystalline increases and the reflectivity absorption peaks shift from high frequency to low frequency with the increase of thickness.

以金属离子的柠檬酸盐为前驱体,通过sol-gel自燃烧的合成方法制备了镍锌铁氧体(Ni0.8Zn0.2Fe2O4)纳米晶体.采用FT-IR、DSC-TG、XRD、TEM波导等方法对产物以及产物的电磁性能进行了表征.结果表明,在前驱体中,金属离子与柠檬酸以络合物的形式存在.凝胶在220℃完成自燃烧反应.随着热处理温度的升高,粉体的粒径逐渐增大.纳米晶体在8-12GHz的测试条件下具有介电损耗与磁损耗.随着涂层厚度的增加,混合媒质的微波反射率逐渐增加,反射率吸收峰随着厚度的增加向低频移动.

La0.5Sr0.5MnO3 nano crystalline was synthesized by sol-gel auto-combustion method using citric acid as the chelating agents. Some analysis methods, which consisted of FT-IR, XRD, DSC-TG, wave-guide, were used to character the gel and the products after calcining. It was shown that metal ions and carboxyl were coordinated by the orientated manner. The phenomenon of melt, combustion and forming crystal for gel were observed in the process of thermo-decomposition. the nano crystalline had a dielectric loss in the...

La0.5Sr0.5MnO3 nano crystalline was synthesized by sol-gel auto-combustion method using citric acid as the chelating agents. Some analysis methods, which consisted of FT-IR, XRD, DSC-TG, wave-guide, were used to character the gel and the products after calcining. It was shown that metal ions and carboxyl were coordinated by the orientated manner. The phenomenon of melt, combustion and forming crystal for gel were observed in the process of thermo-decomposition. the nano crystalline had a dielectric loss in the frequency range of measurement. With the increasing of thickness, the reflectivity of perovskite-type nano crystalline increased and absorption peak shifted from high frequency to low frequency.

以柠檬酸为络合剂,采用溶胶-凝胶(sol-gel)自燃烧方法制备了La0.5Sr0.5MnO3纳米晶体。使用FT-IR,DSC-TG,XRD,波导方法对反应、反应产物以及反应产物的电磁性能进行了研究。结果表明,在凝胶中,金属离子与柠檬酸以络合物的形式存在。凝胶在273℃基本完成自燃烧反应。生成的La0.5Sr0.5MnO3纳米晶体为钙钛矿结构,随着反应温度的提高,产物的粒径逐渐增大。电磁性能结果表明,La0.5Sr0.5MnO3在8GHz~12GHz的微波范围内具有明显的介电损耗。随着厚度的增加,混合媒质的反射率逐渐增加,反射率吸收峰随着厚度的增加向低频移动。

 
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