دراسة الخواص البنيوية والحرارية للفرايت – Co Zn باستخدام طريقتي IR و TG-DTA

Authors

  • إبراهيم علي
  • بدر الأعرج

Abstract

حُضِّر مسحوق الفرايت Co(1-x) Znx Fe2 O4 حيث (x = 0.4) بالطريقة السيراميكية التقليدية, وبعد ذلك أخذ طيف IR لهذه العينة في المجال (400-4000) cm-1 وحددنا في هذا المجال ترددات اهتزاز المواقع الرباعية والثمانية في بنية الفرايت: 580 cm-1 ,422 cm-1 و409 cm-1 على الترتيب. علاوة على ذلك, أُجري للعينة المخطط الحراري وفق طريقة TG-DTA، وذلك ضمن المجال الحراري (20-700) 0C، ويبين هذا المخطط أنه
لا يوجد فقدان بالوزن. وهذا يشير إلى أن العينة خالية من الرطوبة، بينما آثار التفاعلات الحرارية كانت ضعيفة الشدة. إضافة إلى ذلك, حددنا من المنحني درجة حرارة كوري للعينة 130 0C، وكذلك المنطقة المغناطيسية الشاذة, ودرجة حرارة الكلسنة.

Co(1-x)ZnxFe2O4 spinel ferrite (x=0.4) was prepared by a well-known double sintering process. However, the IR-spectrum was taken in the wavevector range (400-4000) cm-1. This spectrum shows three main absorption bands: 580, 422 and 409 cm-1.  Moreover, the thermal gravimetric and differential thermal analyses  TG-DTA reveal four principal endothermic peaks at 28, 130, 333 and 653 0C within temperature range 20 – 700 0C.

The diagram reveals no weight loss, i.e., no sample moisture, while the thermal effects are slight. In addition, the Curie temperature was fixed at 130 0C, the magnetic anomaly at 333 0C and calcination temperature at 653 0C.

Downloads

Published

2018-12-09

How to Cite

1.
علي إ, الأعرج ب. دراسة الخواص البنيوية والحرارية للفرايت – Co Zn باستخدام طريقتي IR و TG-DTA. TUJ-BA [Internet]. 2018Dec.9 [cited 2025Apr.3];34(1). Available from: https://journal.tishreen.edu.sy/index.php/bassnc/article/view/5231

Issue

Vol. 34 No. 1 (2012): العلوم الأساسية

Section

Articles

License

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

The authors retain the copyright and grant the right to publish in the magazine for the first time with the transfer of the commercial right to the Tishreen University Journal -Basic Sciences Series  

 Under a CC BY- NC-SA 04 license that allows others to share the work with of the work's authorship and initial publication in this journal. Authors can use a copy of their articles in their scientific activity, and on their scientific websites, provided that the place of publication is indicted in Tishreen University Journal -Basic Sciences Series .  The Readers have the right to send, print and subscribe to the initial version of the article, and the title of Tishreen University Journal -Basic Sciences Series   Publisher

 

journal uses a CC BY-NC-SA license which mean

You are free to:

  • Adapt — remix, transform, and build upon the material
  •  
  • The licensor cannot revoke these freedoms as long as you follow the license terms.

 

  • Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
  • NonCommercial — You may not use the material for commercial purposes.
  • ShareAlike — If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original.
  • No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.

Most read articles by the same author(s)

<< < 1 2 3 > >>