欢迎登录材料期刊网

材料期刊网

高级检索

检索条件:关键词=Nanocrystalline  

  • 论文(13)

Research on Ultrafine Tungsten Carbide-Cobalt (WC-Co) Cemented Carbide Rods of Miniature Drills for Highly Integrated Printed Circuit Board (PCB)

Xiaoliang SHI , Gangqin SHAO , Xinglong DUAN , Runzhang YUAN , null , null , null

材料科学技术(英文)

Nanocrystalline tungsten carbide-cobalt (WC-Co) composite powders produced through spray thermal decomposition-continuous reduction and carburization technology were used to prepare Φ3.25 mm×38 mm ultrafine tungsten carbide-cobalt (WC-Co) cemented carbide rods through vacuum sintering plus sinterhip...

关键词: Nanocrystalline , null , null , null

Study on Two-phase Nanocrystalline Nd8.5Fe74Co5Cu1Nb1Zr3Cr1B6.5 Permanent Magnet

Jiansen NI , Hui XU , Mingyuan ZHU , Qiang LI , Bangxin ZHOU , Yu , a DON

材料科学技术(英文)

Nd8.5Fe74Co5Cu1Nb1Zr3Cr1B6.5 bonded magnets were prepared by melt-spun and subsequent heat treatment. Magnetic properties of Br=0.68 T, JHc=716 kA/m, (BH) max=77 kJ/m3 were achieved. The addition of Cr element shows to be significantly advantageous in reducing grain size and increasing the intrinsic...

关键词: null , Nanocrystalline , Melt-spinning , Ma

Synthesis, Characterization and Electromagnetic Studies on Nanocrystalline Nickel Zinc Ferrite by Polyacrylamide Gel

Ruiting MA

材料科学技术(英文)

Nanocrystalline nickel zinc ferrite powders (NixZn1-xFe2O4, A for x=0, B for x=0.2, C for x=0.5, D for x=0.8 and E for x= 1) were synthesized by polyacrylamide gel method. X-ray diffraction (XRD), transmission electron microscopy (TEM) and wave-guide were used to characterize the composition. The XR...

关键词: Nanocrystalline , ferrite , electromagnetic

Synthesis and Characterization of Fine Grained High Density La2Mo2O9-based Oxide-ion Conductors

Jianxin WANG , Qin WANG , Xianping WANG , Chun LI , Qianfeng FANG

材料科学技术(英文)

A cost-effective technique, including nanocrystalline powder preparation using a modified Pechini method and a two-step low-temperature sintering route, was developed for the synthesis of high performance La2Mo2O9-based oxide-ion conductors. The optimum parameters of the compaction pressure, the fir...

关键词: Oxide ion conductor , null , null , null

Synthesis, Characterization and Electromagnetic Studies on Nanocrystalline Co0.5Zn0.5Fe2O4 Synthesized by Polyacrylamide Gel

Ruiting MA

材料科学技术(英文)

Nanocrystalline Co0.5Zn0.5Fe2O4 ferrite was synthesized by polyacrylamide gel method. The electromagnetic and microwave absorption properties of the ferrite were investigated. The results indicated that calcining temperature of the ferrite had a significant influence on the effective properties of t...

关键词: Polyacrylamide gel , null , null

Molecular Dynamic Simulation of Lattice Distortion Region Produced by Rounded Grain Boundary in Nanocrystalline Materials

Xiaowei WANG , Jingyang WANG , Douxing LI , J.Rifkin

材料科学技术(英文)

The distortion structure in nanocrystalline NiAl is studied using molecular dynamics simulation. The rounded grain boundaries in these nanograins are a direct source for the observed lattice distortion. The change of grain size affects directly the volume fraction of the distorted lattice in the nan...

关键词: Molecular dynamic simulation , null , null

  • 首页
  • 上一页
  • 1
  • 2
  • 下一页
  • 末页
  • 共2页
  • 跳转 Go