1) polycrystal bulk CaCu3Ti4O12
CaCu3Ti4O12多晶块材
1.
Single-phase polycrystal bulk CaCu3Ti4O12 was prepared by solid-state reaction method.
结果表明,CaCu3Ti4O12多晶块材在温度为300 K、频率为1 kHz时,ε高达14000;在1 kHz、100-340 K温区内ε的数值基本不变。
2) Polycrystalline bulk
多晶块材
1.
At first,the La_(2/3)Sr_(1/3)MnO_3 polycrystalline bulk is synthesized through the chemical coprecipitation route innovatively and microstructure,electrical, magnetic and magnetoresistance for cor.
本论文较为系统地研究了庞磁电阻(colossal magnetoresistance,CMR)材料La_(2/3)Sr_(1/3)MnO_3多晶块材及(La_(2/3)Sr_(1/3)MnO_3)_(1-x)/(LaNiO_3)_x复合体系的制备、晶体结构、电磁性能、CMR效应等重要内容。
3) Polycrystalline bulk materials
多晶块状材料
4) CaCu_3Ti_4O_(12)
CaCu3Ti4O12
1.
The effects of the different post-annealing atmosphere and the metal electrodes on the dielectric properties of the CaCu_3Ti_4O_(12)(CCTO) ceramic were studied in the paper,in order to clarify whether the surface contact is responsible for the giant dielectric constant of CCTO.
我们在空气中制备了CaCu3Ti4O12陶瓷,发现样品表面电阻率很大,样品表面呈现绝缘态,此时不同功函数电极以及不同电极制备方法对其介电性质几乎没有影响,说明CC-TO的巨介电常数是由孪晶界或半导体晶粒与绝缘晶界所产生的内部阻挡电容(IBLC)所引起。
2.
Giant dielectric properties of CaCu_3Ti_4O_(12) ceramic disc,prepared by solid reaction,were studied in a temperature ranging from 50 K to 300 K.
制备CaCu3Ti4O12陶瓷,在50 K~300 K温区范围内测试试样介电性能。
3.
CaCu_3Ti_4O_(12) as well as Y_(2/3)Cu_3Ti_4O_(12) and La_(2/3)Cu_3Ti_4O_(12) was successfully prepared by traditional ceramic process.
利用传统陶瓷烧结方法,成功制备了巨介电常数陶瓷CaCu3Ti4O12以及Ca被Y或La取代后的Y2/3Cu3Ti4O12和La2/3Cu3Ti4O12体系。
5) bulk polycrystal
块状多晶
6) polycrystalline fibre optical waveguide
多晶锭块
补充资料：多晶莫来石晶须(纤维)
分子式：
CAS号：
性质：莫来石相为主晶相的多晶纤维。化学成分为Al2O3 72％～77％，SiO222％～17％，B2O3 3％～5％，P2O51.5％～3.0％。纤维直径2～7μm，纤维长度20～125μm。使用温度1350℃。多采用溶胶-凝胶法制造。主要用作补强填料，也可作为轻质、隔热保温材料使用。
CAS号：
性质：莫来石相为主晶相的多晶纤维。化学成分为Al2O3 72％～77％，SiO222％～17％，B2O3 3％～5％，P2O51.5％～3.0％。纤维直径2～7μm，纤维长度20～125μm。使用温度1350℃。多采用溶胶-凝胶法制造。主要用作补强填料，也可作为轻质、隔热保温材料使用。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条