|
|
★ ★ ★
wmt1447(金币+3,VIP+0):谢谢 交流！！ 12-13 13:16
进入http://www.engineeringvillage2.com.cn/
输入英文题目，限定词选title
按search
按查询到文章下面的detailed链接，进入文章详细检索界面
第一项Accession number（如下例20094912528041 ）就是EI号
Accession number: 20094912528041
Title: Synthesis of nanocrystalline Ni0.5Zn0.5Fe2O4 ferrite and study of its magnetic behavior at different temperatures
Authors: Kumar, Sanjeev1 ; Singh, Vaishali1 ; Aggarwal, Saroj1 ; Mandal, Uttam Kumar2 ; Kotnala, R.K.3
Author affiliation: 1 University School of Basic and Applied Sciences, GGS Indraprastha University, Kashmere Gate, New Delhi, 110403, India
2 University School of Chemical Technology, GGS Indraprastha University, Kashmere Gate, New Delhi, 110403, India
3 National Physical Laboratory, New Delhi, 110012, India
Corresponding author: Singh, V. (dr_vaishali_singh@yahoo.co.in)
Source title: Materials Science and Engineering B: Solid-State Materials for Advanced Technology
Abbreviated source title: Mater Sci Eng B Solid State Adv Technol
Volume: 166
Issue: 1
Issue date: January 15, 2010
Publication year: 2009
Pages: 76-82
Language: English
ISSN: 09215107
CODEN: MSBTEK
Document type: Journal article (JA)
Publisher: Elsevier Ltd, Langford Lane, Kidlington, Oxford, OX5 1GB, United Kingdom
Abstract: Ni0.5Zn0.5Fe2O4 ferrite nanocrystals with average diameter in the range of 1-2 nm have been synthesized by reverse microemulsion. X-ray diffraction (XRD), transmission electron microscopy (TEM) and vibrating sample magnetometer (VSM) are used to characterize the structural, morphological and magnetic properties. X-ray analysis showed that the nanocrystals possess cubic spinel structure. The absence of hysteresis, negligible remanence and coercivity at 300 K indicate the superparamagnetic character and single domain in the nanocrystalline Ni0.5Zn0.5Fe2O4 ferrite materials. The nanocrystalline Ni0.5Zn0.5Fe2O4 ferrite were annealed at 600 °C. As a result of heat treatment the average particle size increases from 2 nm to 5 nm and the corresponding magnetization values have increased to 21.69 emu/g at 300 K. However, at low temperature of 100 K, the annealed samples show hysteresis loop which is the characteristic of a superparamagnetic to ferromagnetic transition. In addition, a comparative study of the magnetic properties of Ni0.5Zn0.5Fe2O4 ferrite nanocrystals obtained from reverse microemulsion has been carried out with those obtained from the general chemical co-precipitation route. © 2009 Elsevier B.V. All rights reserved.
Number of references: 28
Main heading: Magnetic materials
Controlled terms: Diffraction - Ferrite - Hysteresis - Low temperature operations - Magnetic properties - Magnetic variables measurement - Magnetization - Magnets - Metal analysis - Microemulsions - Monitoring - Nanocrystalline materials - Nanocrystals - Nanostructured materials - Nickel - Precipitation (chemical) - Superparamagnetism - Synthesis (chemical) - Transmission electron microscopy - X ray diffraction - X ray diffraction analysis - Zinc
Uncontrolled terms: B. Chemical synthesis - Chemical synthesis - D. Magnetic measurement - Magnetic measurements - TEM
Classification code: 802.2 Chemical Reactions - 933.1.1 Crystal Lattice - 933.1 Crystalline Solids - 931.3 Atomic and Molecular Physics - 931.2 Physical Properties of Gases, Liquids and Solids - 804 Chemical Products Generally - 802.3 Chemical Operations - 933.3 Electronic Structure of Solids - 942 Electric and Electronic Measuring Instruments - 942.4 Magnetic Variables Measurements - 943 Mechanical and Miscellaneous Measuring Instruments - 944 Moisture, Pressure and Temperature, and Radiation Measuring Instruments - 961 Systems Science - 941 Acoustical and Optical Measuring Instruments - 801.3 Colloid Chemistry - 531 Metallurgy and Metallography - 704 Electric Components and Equipment - 701.2 Magnetism: Basic Concepts and Phenomena - 548.1 Nickel - 546.3 Zinc and Alloys - 545.3 Steel - 531.2 Metallography - 708.4 Magnetic Materials - 714.2 Semiconductor Devices and Integrated Circuits - 741.1 Light/Optics - 741.3 Optical Devices and Systems - 761 Nanotechnology - 801 Chemistry - 711.1 Electromagnetic Waves in Different Media
DOI: 10.1016/j.mseb.2009.10.009
Database: Compendex
Compilation and indexing terms, © 2009 Elsevier Inc. |
|
回复此楼
5+5