材料期刊网

Carbothermic Reduction of Zinc Oxide Concentrate by Microwave

Ali Saidi , Kamran Azari

材料科学技术（英文）

Industrial application of microwave, as a heating source for material processing, was reviewed. The feasibility of carbothermic reduction of zinc oxide concentrate, as well as the effect of operating parameters was investigated, using a home style microwave oven at 2.45 GHz. Zinc oxide concentrate d...

关键词: Microwave , null , null

Electrical Characterization of Doped Silicon Using High-Frequency Electromagnetic Waves

Yang Ju , Yasushi Ohno , Hitoshi Soyama , Masumi Saka

材料科学技术（英文）

A method for electrical characterization of doped silicon in a contactless fashion using high-frequency electromagnetic waves was presented. A focusing sensor was used to focus a 110 GHz microwave on the surface of a silicon wafer. The amplitude and phase of the reflection coefficient of the microwa...

关键词: Conductivity , null , null , null

Effect of Sn4+ B-Site Substitution on the Microstructure and Dielectric Properties of Ba(Mg1/3Ta2/3)O3 Microwave Ceramics

Shunhua WU , Guoqing WANG , Shuang WANG , D , an LIU

材料科学技术（英文）

The effect of Sn4+ (BaSnO3) B-site substitution on the microstructure and dielectric properties of Ba(Mg1/3Ta2/3O3 microwave ceramics was investigated. X-ray diffraction shows that a complex perovskite material Ba(Mg1/3Ta2/3)O3 was prepared. As Sn4+ content x increases in the (1-x) Ba(Mg1/3Ta2/3)O3-...

关键词: Ba(Mg1/3Ta2/3)O3 , null , null , null

A Simulator for Producing of High Flux Atomic Oxygen Beam by Using ECR Plasma Source

Shuwang DUO , Meishuan LI , Yaming ZHANG

材料科学技术（英文）

In order to study the atomic oxygen corrosion of spacecraft materials in low earth orbit environment, an atomic oxygen simulator was established. In the simulator, a 2.45 GHz microwave source with maximum power of 600 W was launched into the circular cavity to generate ECR (electron cyclotron resona...

关键词: Atomic oxygen , null , null , null

Broad Microwave Dielectric Property of Single-walled Carbon Nanotube Composites

JunhHua WU

材料科学技术（英文）

Microwave dielectric measurements over the broad bandwith of 10 MHz to 20 GHz were conducted on composites comprising bundles of single-walled carbon nanotubes (SWNT) embedded in an epoxy matrix, in comparison to the nano-graphite and MWNT. It is found that both relative real and imaginary permittiv...

关键词: Single-walled carbon nanotube , carbon , nanotube , Dielectric

Co取代的六铁酸盐在N2O催化分解反应中的应用

黄延强

催化学报 doi:10.1016/S1872-2067(12)60587-7

采用溶胶-凝胶法制备了Co取代的Ba2MghCoxFe12O22(x=0.0～2.0)催化剂,并考察了其在高浓度N2O (30 vol％)分解反应中的催化活性.结果表明,Co的取代显著提高了Ba2Mg2Fe12O22催化剂活性,当x=2时,N2O的完全分解温度从1123 K降至973 K;提高催化剂...

关键词: 一氧化二氮 , 分解 , 六铁酸盐 , Ba2Mg2Fe12O22 , 钴 , 微波

Carbothermic Reduction of Zinc Oxide Concentrate by Microwave

材料科学技术（英文）

关键词:

微波法合成SiC纳米线及其光致发光性质

黄珊 , 王继刚 , 刘松 , 张玥晨 , 钱柳 , 梁杰

新型炭材料

以Si粉、SiO2粉和人造石墨为原料，在1480℃、4 kW、80 min的真空微波辐照条件下快速高效地合成SiC纳米线。利用SEM、TEM、XRD等对所得产物的微观结构解析表明，在未使用催化剂的条件下，基于气固( VS)机制可成功制备出β型SiC。根据坩埚中的部位不同，所得SiC呈现出不同的形貌。...

关键词: 微波法 , 碳化硅 , 纳米线 , 结构表征 , 光致发光

微波法制备硫/膨胀石墨复合材料及其锂硫电池性能

朱福良 , 杨志 , 赵金平 , 赵薪

新型炭材料 doi:10.1016/S1872-5805(16)60011-2

采用简单的微波辅助的方法成功制备了硫/膨胀石墨复合材料。膨胀石墨可以用作锂硫电池中阴极的微型容器及集流体。通过控制硫与膨胀石墨的配比成功控制了复合材料中硫颗粒的大小。当硫与膨胀石墨的比例为10∶1时，可以得到相对较均匀的硫颗粒。同时研究了不同条件下所制样品的锂硫电池性能。结果表明，硫的含量与硫颗粒的...

关键词: 膨胀石墨 , 锂硫电池 , 微波 , 硫颗粒尺寸