| Item type |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2008-03-28 |
| タイトル |
|
|
タイトル |
Synthesis and Electrical Properties of Cation Deficient Perovskite-type Oxides in the Ln-A-Ti-AI-0 System (Ln = La, Nd;A=Ca, Sr). |
|
言語 |
en |
| 言語 |
|
|
言語 |
eng |
| 主題 |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
perovskite |
| 主題 |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
crystal structure |
| 主題 |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
cation vacancy |
| 主題 |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
oxide ion conductor |
| 主題 |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
electrical conductivity |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
journal article |
| アクセス権 |
|
|
アクセス権 |
open access |
|
アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 作成者 |
Kato, Sumio
MatsukiI, Yukio
Maruyama, Takahiro
Moriya, Yoshio
Sugai, Mikio
Nakata, Shinichi
|
| 内容記述 |
|
|
内容記述タイプ |
Abstract |
|
内容記述 |
The effects of ion vacancy on the crystal structure and the electrical conductivity of perovskite-type oxides were investigated. The cation and oxide ion deficient perovskite-type oxides LnA2-xTi2AlO9-d(Ln=La, Nd;A=Ca, Sr) were synthesized. Single-phase samples of LnA2-xTi2AlO9-d were prepared by heating at 1673 K in air in the compositional range of x=0-0.3 for both A = Ca and Sr. The crystal structures were cubic perovskite-type for A = Sr and orthorhombic perovskite-type for A=Ca. Lattice parameters of LnA2-xTi2AlO9-d increased with increasing amounts of A cation vacancies. All the samples exhibited semiconducting behavior in the temperature range of 573-1023 K in air. The measurements of conductivity for LnA2-xTi2AlO9-d as a function of oxygen partial pressure revealed n-type conductivity at oxygen partial pressure less than 0.21 arm. The conductivities of LnA2-xTi2AlO9-d increased with increasing amount of A cation and oxide ion vacancies for both A=Ca and Sr. |
|
言語 |
en |
| 出版タイプ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| 書誌情報 |
en : International Journal of the Society of Materials Engineering for Resources
巻 10,
号 1,
p. 61-65,
発行日 2002-03-01
|
| 収録物識別子 |
|
|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
13479725 |
| 収録物識別子 |
|
|
収録物識別子タイプ |
NCID |
|
収録物識別子 |
AA1095475X |
| 出版者 |
|
|
出版者 |
The Society of Materilas Engineering for resources of Japan |
|
言語 |
en |
| 関連情報 |
|
|
関連タイプ |
isIdenticalTo |
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
https://doi.org/10.5188/ijsmer.10.61 |
ijsmer10-1i.pdf (565.7 kB)
