Structural and electrical properties of Nb-substituted LiTa1-xNbxO3
Single phase LiTa1-xNbxO3 solid solution with 0.00 ≤ x ≤ 1.00 was successfully synthesised via conventional solid-state method at 950°C for 24 h. These materials were refined and fully indexed with hexagonal crystal system, space group of R3c; lattice parameters, a ranging from 5.1410(6) Ǻ to 5.1471...
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Universiti Kebangsaan Malaysia
2014
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my-ukm.journal.78212016-12-14T06:45:18Z http://journalarticle.ukm.my/7821/ Structural and electrical properties of Nb-substituted LiTa1-xNbxO3 Bak, K.Y. Tan, K.B. Khaw, C.C Zainal, Z. Tan, P.Y. Chon, M.P. Single phase LiTa1-xNbxO3 solid solution with 0.00 ≤ x ≤ 1.00 was successfully synthesised via conventional solid-state method at 950°C for 24 h. These materials were refined and fully indexed with hexagonal crystal system, space group of R3c; lattice parameters, a ranging from 5.1410(6) Ǻ to 5.1471(3) Ǻ and c ranging from 13.7467(1) Ǻ to 13.8341(1) Ǻ; with α = β = 90° and γ = 120°. Variation of the lattice parameters in these materials was found to be negligibly small throughout the subsolidus solution. No thermal event was detected within the studied temperature range of 50 to 1000°C. The electrical properties of samples were characterised by AC impedance analyser, HP4192A at temperature ranging from room temperature to 850°C over a frequency range of 5 Hz to 13 MHz. LiTa1-xNbxO3 materials exhibited bulk response with associated capacitances in the order of 10-12 F cm-1 and the temperature-dependent conductivities were found to increase with increasing temperatures. The results showed that LiTa1-xNbxO3 samples were of typical ferroelectrics. Universiti Kebangsaan Malaysia 2014-10 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/7821/1/15_K.Y._Bak.pdf Bak, K.Y. and Tan, K.B. and Khaw, C.C and Zainal, Z. and Tan, P.Y. and Chon, M.P. (2014) Structural and electrical properties of Nb-substituted LiTa1-xNbxO3. Sains Malaysiana, 43 (10). pp. 1573-1582. ISSN 0126-6039 http://www.ukm.my/jsm/ |
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Single phase LiTa1-xNbxO3 solid solution with 0.00 ≤ x ≤ 1.00 was successfully synthesised via conventional solid-state method at 950°C for 24 h. These materials were refined and fully indexed with hexagonal crystal system, space group of R3c; lattice parameters, a ranging from 5.1410(6) Ǻ to 5.1471(3) Ǻ and c ranging from 13.7467(1) Ǻ to 13.8341(1) Ǻ; with α = β = 90° and γ = 120°. Variation of the lattice parameters in these materials was found to be negligibly small throughout the subsolidus solution. No thermal event was detected within the studied temperature range of 50 to 1000°C. The electrical properties of samples were characterised by AC impedance analyser, HP4192A at temperature ranging from room temperature to 850°C over a frequency range of 5 Hz to 13 MHz. LiTa1-xNbxO3 materials exhibited bulk response with associated capacitances in the order of 10-12 F cm-1 and the temperature-dependent conductivities were found to increase with increasing temperatures. The results showed that LiTa1-xNbxO3 samples were of typical ferroelectrics. |
| format |
Article |
| author |
Bak, K.Y. Tan, K.B. Khaw, C.C Zainal, Z. Tan, P.Y. Chon, M.P. |
| spellingShingle |
Bak, K.Y. Tan, K.B. Khaw, C.C Zainal, Z. Tan, P.Y. Chon, M.P. Structural and electrical properties of Nb-substituted LiTa1-xNbxO3 |
| author_facet |
Bak, K.Y. Tan, K.B. Khaw, C.C Zainal, Z. Tan, P.Y. Chon, M.P. |
| author_sort |
Bak, K.Y. |
| title |
Structural and electrical properties of Nb-substituted LiTa1-xNbxO3 |
| title_short |
Structural and electrical properties of Nb-substituted LiTa1-xNbxO3 |
| title_full |
Structural and electrical properties of Nb-substituted LiTa1-xNbxO3 |
| title_fullStr |
Structural and electrical properties of Nb-substituted LiTa1-xNbxO3 |
| title_full_unstemmed |
Structural and electrical properties of Nb-substituted LiTa1-xNbxO3 |
| title_sort |
structural and electrical properties of nb-substituted lita1-xnbxo3 |
| publisher |
Universiti Kebangsaan Malaysia |
| publishDate |
2014 |
| url |
http://journalarticle.ukm.my/7821/1/15_K.Y._Bak.pdf http://journalarticle.ukm.my/7821/ http://www.ukm.my/jsm/ |
| _version_ |
1643737257378578432 |
| score |
13.211869 |