کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1286995 | 973209 | 2006 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Microstructure and electrochemical properties of cathode materials for SOFCs prepared via pulsed laser deposition Microstructure and electrochemical properties of cathode materials for SOFCs prepared via pulsed laser deposition](/preview/png/1286995.png)
Dense La0.8Sr0.2MnO3 (LSM) and La0.5Sr0.5CoO3 (LSC) films were fabricated via pulsed laser deposition (PLD) on different substrates. The crystal structures of the films were characterized via in situ X-ray diffraction and the in-plane electrical properties by impedance spectroscopy from room temperature to 700 °C. While the ablated films appeared to grow in the perovskite phase with the appropriate electrical properties when the substrate temperature was greater than 500 °C, they were amorphous when the substrate temperature was relatively low. Subsequent annealing of amorphous LSM and LSC films in air induced a rapid phase transformation to the perovskite phase. On silicon substrates, this phase transformation occurred at 450 and 600 °C, respectively.
Journal: Journal of Power Sources - Volume 161, Issue 1, 20 October 2006, Pages 250–255