摘要
针对La4Ni3O10氧化物烧结困难的问题,采用放电等离子烧结(SPS)技术,成功获得颗粒粒径在300～500nm的La4Ni3O10烧结样品。此外,通过一系列烧结参数调整以及采用ZrO2包裹隔离措施,有效解决了La4Ni3O10样品在SPS烧结中成品破裂以及相还原问题。样品导电性能显示,La4Ni3O10样品基本显示金属导体特性,仅在250～300℃区间显示出部分半导体性质。值得一提的是,该样品在常温下的导电率,远高于文献所报道的数据,表明其在中温固体燃料电池的应用中有着美好前景。
To resolve the difficulty in sintering I~ Nis O^0 powder, a discharge plasma sintering （SPS） technology was employed in this paper, which successfully yielded the particle size in the 300~ 500 nm of La4 Ni3 O10 sintered sam- ples. In addition, through a series of experimental parameter adjustment and the use of ZrO2 package isolation meas- ures, we solved the problem of rupture and reduction of the La4 Ni3 O10 sintered samples during SPS process. The con- ductivity of resulted sample basically shows the characteristics of metal conductor, only in the range of 250~ 300 ℃ displaying a portion of semiconductor properties. In particular, its room temperature conductivity was measured much higher than that reported, indicating a promising application in the IT-SOFCs.
出处
《建材世界》
2013年第1期1-4,共4页
The World of Building Materials
