2006
DOI: 10.3989/cyv.2006.v45.i3.297
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Obtención de materiales cerámicos basados en ZnO-SnO<sub>2</sub> por coprecipitación

Abstract: Tin (IV)-doped zinc oxide ceramics find its main application as specific gas sensor devices. The sensor ability of the mixture and its particular affinity for a particular gas (selectivity) depends both on the crystalline phases in the microstructure of the sintered semiconductor and on the degree of tin incorporation into ZnO lattice. By means of a highly reactive coprecipitation method it is revealed that the range of solid solution of tin in zinc oxide stays below 0.1 mol % of SnO 2 since higher concentrati… Show more

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Cited by 13 publications
(1 citation statement)
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“…It was reported that the degree of solid solution of tin in zinc oxide stayed below 0.1 mol % of SnO 2 and higher concentrations of SnO 2 would lead to the segregation of secondary phase [34]. After that, with further increasing amount of SnO 2 doped into the varistors, the changes of phase composition and microstructure after SnO 2 doping might play a more important role in the electrical property than the donor effect.…”
Section: E-j Characteristicsmentioning
confidence: 98%
“…It was reported that the degree of solid solution of tin in zinc oxide stayed below 0.1 mol % of SnO 2 and higher concentrations of SnO 2 would lead to the segregation of secondary phase [34]. After that, with further increasing amount of SnO 2 doped into the varistors, the changes of phase composition and microstructure after SnO 2 doping might play a more important role in the electrical property than the donor effect.…”
Section: E-j Characteristicsmentioning
confidence: 98%