| Research Title |
Synthesis, structure and dielectric properties of ZnxNi1-xFe2O4 materials |
| Date of Distribution |
1 May 2016 |
| Conference |
| Title of the Conference |
The Pure and Applied Chemistry International Conference 2016 (PACCON2016) |
| Organiser |
The Chemical Society of Thailand under the Patronage of Professor Dr. HRH Princess Chulabhorn |
| Conference Place |
Bangkok International Trade and Exhibition Centre (BITEC) |
| Province/State |
Bangkok, Thailand |
| Conference Date |
9 January 2016 |
| To |
11 January 2016 |
| Proceeding Paper |
| Volume |
2016 |
| Issue |
1 |
| Page |
787-791 |
| Editors/edition/publisher |
Tirayut Vilaivan |
| Abstract |
Znx
Ni1-x
Fe2O4
, where x = 0.0, 0.25, 0.50 0.75 and 1.0 materials were synthesized by
sol-gel process using ethylene glycol as a cross-linking agent and sintered at 700 °C for 3 h.
Phase composition and microstructure of the sintered pellets were characterized by using
X-ray diffraction and scanning electron microscopy, respectively. All sintered samples
revealed the formation of cubic spinel structure having the most intense (311) reflection and
exhibited uniformly spherical particles with nanosize. The dielectric constant (ε
r
) and loss
tangent (tanδ) were measured at room temperature in the frequency range 100 Hz to 1 MHz
using impedance analyzer. It is observed that the dielectric constants of all samples decrease
rapidly with increasing frequency and then remain constant. The dielectric behavior can be
explained by Maxwell-Wagner interface polarization and Koop’s theory model. Dielectric
constant and loss tangent with the substitution of Zn
2+
up to x = 0.5 were increased and then decreased with further addition of Zn content. The variation of dielectric values is because of
the decrease in the number of ferrous ions on octahedral sites |
| Author |
|
| Peer Review Status |
มีผู้ประเมินอิสระ |
| Level of Conference |
นานาชาติ |
| Type of Proceeding |
Full paper |
| Type of Presentation |
Poster |
| Part of thesis |
true |
| Presentation awarding |
false |
| Attach file |
|
| Citation |
0
|
|
|
Publication
Journal Publication
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