RFe7Mn4Ti化合物的结构和磁性(R=Y,Tb,Dy,Ho,Er)

来源 :东南大学学报 | 被引量 : 0次 | 上传用户：fbrjsdlf

【摘要】

：

研究了Mn部分替代RFe11Ti中的Fe对化合物结构和磁性的影响. 利用真空电弧熔炼和真空热处理制备RFe7Mn4Ti(R=Y, Tb, Dy, Ho和Er)化合物样品. 室温粉末样品的X射线衍射和热磁曲

【作者】

：

杨石强林萍华盛晓波董寅生杨素萍

【机构】

：

东南大学机械工程系,南京,210096

【出处】

：

东南大学学报

【发表日期】

：

2003年2期

【关键词】

：

金属间化合物 ThMn12结构饱和磁化强度稀土 intermetallic compounds ThMn12-type structure saturati

【基金项目】

：

Application Science Foundation of Jiangsu Province of China;

下载到本地 , 更方便阅读

下载此文赞助VIP

声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架

论文部分内容阅读

研究了Mn部分替代RFe11Ti中的Fe对化合物结构和磁性的影响. 利用真空电弧熔炼和真空热处理制备RFe7Mn4Ti(R=Y, Tb, Dy, Ho和Er)化合物样品. 室温粉末样品的X射线衍射和热磁曲线测量表明:所有这些化合物都具有单ThMn12型结构,且具有良好的单相性,其晶格常数和单胞体积随着稀土元素的不同而变化. 在DyFe7Mn4Ti和HoFe7Mn4Ti化合物的热磁曲线上出现了明显的补偿特征,补偿温度分别约为123*!K和90*!K.同时给出了这些化合物的居里温度、饱和磁化强度及每单位分子式的饱和磁矩.

其他文献

Uniform attractors of non-autonomous dissipative semilinear wave equations

The asymptotic long time behaviors of a certain type of non-autonomous dissipative semilinear wave equations are studied. The existence of uniform attractors is

期刊

semilinear wave equationsuniform attractorHausdorff and Fractal dimensions

The Study of Heat Pulse Propagation on HT-7 Tokamak

The propagation of heat pulses originating from sawtooth activity has been studied on the HT-7 tokamak. Two theoretical models are used for determining electron

期刊

tokamakelectron heat diffusivitymonopoledipole

Ternary optical computer principle

The fundamental principle and the characteristics of ternary optical computer, using horizontal polarized light, vertical polarized light and no-intensity to e

期刊

optical computerpolarized lightternary optical computer

Thin layer structure of dissipation rate of scalar turbulence

The structure of scalar turbulence dissipation is studied by means of direct numerical simulation. It has been discovered that the scalar turbulence dissipation

期刊

scalar turbulencedirect numerical simulationturbulence structure

14C激发态中子晕

~(14)C半衰期5 730年,是自然界标准时钟,又可作为示踪原子。因此,在考古、生物医学、工程建筑等人文科学、自然科学研究和国民经济建设中有着广泛的应用。~(14)C是宇宙射线

期刊

转移反应核ANC均方根半径中子晕

On a kind of integrals of empirical processes concerning insurance risk

This paper proves the strong consistence and the central limit theorems for empirical right tail deviations.

期刊

insurance premiumright tail deviationSkorokhod constructionempirical process

非线性多变延迟奇异摄动问题的稳定性分析

讨论了形如x′(t)=f(x(t),x(t-τ1(t)),...,x(t-τm(t)),y(t),y(t-τ1(t)),...,y(t-τm(t)))和εy′(t)=g(x(t),x(t-τ1(t)),...,x(t-τm(t)),y(t),y(t-τ1(t)),...,y(t-τm(

期刊

多变时滞奇异摄动问题Euler方法稳定性插值multi-variable delay perturbation problemsEuler metho

ADHESION STRENGTH OF COATING SUBSTRATE AND SURFACE MORPHOLOGY OF PRETREATMENT

Premature failure of coated tool often results from a poor adhesion of coating-substrate and shortens the lifetime of the tool.The results of increasing the adh

期刊

Thin film coating Adhesion strength Surface morphology

Stability in channel flow with fiber suspensions

The constitutive equation of fiber suspensions is established on the basis of fiber orientation tensors. The modified Orr-Sommerfeld stability equation is obtai

期刊

channel flowfiber suspensionsflow stability

Infrared synchrotron radiation spectroscopy and microspectroscopy: new tools for interdisciplinary a

Synchrotron radiation sources, whose number is steadily increasing, are undoubtedly the most powerful and brilliant sources in the X-ray range. Although the syn

期刊

Infrared spectroscopySynchrotron radiationBeamlines

RFe7Mn4Ti化合物的结构和磁性(R=Y,Tb,Dy,Ho,Er)

与本文相关的学术论文