排序方式: 共有4条查询结果,搜索用时 15 毫秒
1
1.
A novel process route using tape casting and stacking for fabricating porous scaffold of solid oxide fuel cells (SOFC) was demonstrated. The linear shrinkages of anode (Ni-YSZ, YSZ stands for 3% Y_2O_3(mole fraction) stabilized ZrO_2) and cathode (LSM-YSZ, LSM stands for La_(0.8)Sr_(0.2)Mn0_3) were optimized to be uniform with that of electrolyte during sintering, by controlling the content of pore former. The micromorphology and interface microstructure of the cross-section of the porous scaffold were observed by optical microscope and scanning electron microscope, respectively. The element distribution and phase composition were analyzed by energy dispersive spectrometer and X-ray diffraction, respectively. The results showed that the porous scaffold with regular pore shape and high specific surface area was obtained after sintering at 1 350℃. The fabricated porous scaffold had defect free interfacial structures due to the uniform shrinkage of anode, cathode and electrolyte layers. In addition, it was shown that diffusions of Zr, Ni and La caused a progressive boundary between YSZ, Ni-YSZ and LSM-YSZ layers. The interface between anode and electrolyte (Ni-YSZ/YSZ) was mainly composed of Ni, YSZ and a small amount of NiO, and the interface between cathode and electrolyte (LSM-YSZ/YSZ) was mainly composed of YSZ, LSM and a small amount of La_2Zr_2O_7. 相似文献
2.
在汽车内饰中,零部件的连接通常采用焊接,机械紧固,卡接和胶带粘结等四种常见的方式。文章简单介绍了几种连接方式的优缺点,从力学性能及对驾驶舱环境的影响(挥发性有机化合物和气味)两方面分析了丙烯酸泡棉胶带粘结替代其余三种连接方式的可行性,并简单介绍了丙烯酸泡棉胶带相比其他胶带的优点及其在汽车上的运用。 相似文献
3.
结合VTS虚拟磁带库的特点,详细介绍基于OS/390主机系统的VTS磁带库在多个主机系统间的分区及共享应用. 相似文献
4.
1