1) nano sized powder sample
纳米粉体样品
1.
The chemical modified MnO 2 nano sized powder samples doped with Pb and Bi separately and that doped with both Pb and Bi were synthesized by means of solid state reaction.
通过固相反应制备了单掺Pb、单掺Bi化学修饰MnO2 以及掺Pb和Bi化学修饰MnO2 纳米粉体样品。
2) Nanometer Powder
纳米粉体
1.
Application of supercritical fluids drying technology in the preparation of nanometer powder;
超临界流体干燥技术在纳米粉体制备中的应用
2.
Agglomerate mechanism of nanometer powders in atmosphere and methods of preparation of nan-agglomerate nanometer powders;
纳米粉体大气环境团聚机理及无团聚纳米粉体的制备
3.
The study of preparing Y2O3 stabilized ZrO2 nanometer powder in stearic acid sol by microwave heating;
溶胶凝胶-微波加热技术制备Y_2O_3稳定ZrO_2纳米粉体的研究
3) nanopowder
纳米粉体
1.
Preparation of Silver Nanopowder by Vacuum Freeze-Drying;
真空冷冻干燥法制备银纳米粉体的实验研究
2.
Preparation of BaTiO_3 nanopowders by solid phase grinding-low temperature calcination method;
固相研磨-低温煅烧法制备钛酸钡纳米粉体
3.
Synthesis of BaTiO_3 nanopowders by direct reactive preciptation method from solution;
液相直接沉淀法制备钛酸钡纳米粉体的研究
4) nanometer powders
纳米粉体
1.
Development of research on drying techniques of nanometer powders;
纳米粉体干燥方法的研究进展
2.
Using BaCl_2·2H_2O、TiCl_4 as the basic raw materials,NaOH as mineralizer and Dy_2O_3 as additive,dysprosium doped barium titanate nanometer powders were prepared by the hydrothermal method.
2H2O、TiCl4为反应物,NaOH为矿化剂,Dy2O3为添加剂,水热合成了镝掺杂钛酸钡纳米粉体。
5) nano-powder
纳米粉体
1.
Preparation of WO_3 nano-powders by w/o microemulsion method;
w/o型微乳液法制备WO_3纳米粉体
2.
Releasing behavior of oxygen in/on some nano-powders under the conditions of impulse heating with different programs;
不同程序脉冲升温条件下一些纳米粉体中氧的释放行为
3.
Applications of nano-powders in electroless composite plating;
纳米粉体在化学复合镀中的应用
6) nanopowders
纳米粉体
1.
Study on oxidization resistance and magnetic behavior of Ni nanopowders;
Ni纳米粉体的氧化特性和磁性研究
2.
Preparation techniques of vanadium dioxide nanopowders and thin films;
二氧化钒纳米粉体和薄膜的制备技术
3.
Preparation of NiO nanopowders with liquid-phase precipitution method;
NiO纳米粉体的液相沉淀法制备
补充资料:超导体小样品(smallspecimensofsuperconductors)
超导体小样品(smallspecimensofsuperconductors)
一般称超导体某一尺度d≤δ0的样品为超导体小样品,δ0是弱磁场穿透深度,d可表示为平板或薄膜的半厚度和圆柱体包球体的半径等。在有附加条件d<ξ时(ξ为相干长度),则不论第一类和第二类超导体,大样品的中间态,混合态和表面超导电性,对小样品言就难于形成或不存在,所以大样品的三个临界磁场Hc1,Hc2和Hc3对小样品言也失去原有的含义。对应第一类超导体的相变临界场Hc,小样品的相变临界场现用HK1来表示。理论和实验均证实,对单连通超导体的HK1比Hc要高,甚至高很多,金兹堡(Ginzburg)将`(Kd//\delta_0)^2\lt\lt1`的样品视为小样品,K是GL参量,理论给出存在样品的临界尺寸dK。d<dK时,在HK1的超导-正常相变为二级相变的样品尺寸分界。在一级相变情形中,当H逐渐增加至HK2>H>HK时,还可存在亚稳的超导相(态),称超导态的过热相,简称过热态;而当H逐渐减小至HK1<H<HK时,还可存在亚稳的正常相(态),称正常态的过冷相,简称过冷态。在亚稳相区均称滞后现象。这里HK2和HK1现在分别称过热临界磁场和过冷临界磁场,HK称平衡相变临界磁场,是一级相变。H>HK2时样品整体处于正常态(相),H<HK1时处于超导态(相)。对超导体小样品的电磁性质一般用GL理论来研究。
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