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题名: Sintering mechanism of porous matrix for molten carbonate fuel cell
作者: Lin Hua-Xin;  Zhou Li;  Zhang Hua-Min
关键词: molten carbonate fuel cell ;  matrix ;  rearrangement and slip ;  maximum pore diameter ;  trapezium model
刊名: JOURNAL OF INORGANIC MATERIALS
发表日期: 2007-07-01
卷: 22, 期:4, 页:759-764
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Technology
类目[WOS]: Materials Science, Ceramics
研究领域[WOS]: Materials Science
英文摘要: In initial sintering stage of the porous (porosity >= 50%) matrix impregnated fully with molten carbonate (46wt% electrolyte) and sintered under the cell stacking pressure, the sintering brought about the rearrangements and slips of powder particles by which the maximum pore diameter altered into a smaller one. Its maximum pore diameter and slip rate were smaller and oppositely higher respectively than those in the matrix impregnated with the less (5wt%) electrolyte and sintered under the ordinary pressure. The cell stacking pressure facilitated the rearrangements and slips of powder particles, but effectively suppressed and diminished defect developments in the sintered matrix. Porosity in the matrix increased, micro-pores altered into bigger ones, mean pore diameter increasing and pore-size distribution becoming narrowly with sintering time by the synergetic action of the rearrangements of powder particles and its accompanying mechanisms. As indicated above, the sintering behaviors and the alteration of some physical properties with sintering time in the porous matrix are different from those in traditional ceramics. So the rearrangement of powder particles dominates over the sintering mechanisms of the porous matrix, its sintering model conforms to the trapezium model.
语种: 英语
WOS记录号: WOS:000248928700038
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/140529
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China

Recommended Citation:
Lin Hua-Xin,Zhou Li,Zhang Hua-Min. Sintering mechanism of porous matrix for molten carbonate fuel cell[J]. JOURNAL OF INORGANIC MATERIALS,2007,22(4):759-764.
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