• Journal of the Korean Ceramic Society
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• v.23 no.3
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• pp.87-93
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• 1986

Yttria-bismuth-stabilized zirconia was investigated with respect to the amount of $Bi_2O_3$ addition in the ran-ge of 0.5~5mol% to the base composition of $(ZrO_2)_{0.92}(Y_2O_3)_{0.08}.Bismuth was introduced into the ma-terial with $Bi_2O_3-SiO_2$ glasses in order to reduce the evaporation of components. The sinterbility evaporation of components phase formation and microstructure were evaluated depending on the amount of $Bi_2O_3-SiO_2$ glass addition. Two probe A. C conductivity measurement was subjected to all the specimens and the result was discussed on the possible substitution of $Bi^{3+}$ for $Zr^{4+}$ and interistial $Si^{4+}$ in the fluorite structure of zirconia crystal there-upon the possible change in the capability of oxygen transference within the material. It was found that the addition of $Bi_2O_3$ could improve the sinterbility of material very much while not so much.oxygen sensing material suitable for relative low temperature firing.

• The Academic Congress of Korean Shoulder and Elbow Society
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• 2007.03a
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• pp.7-8
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• 2007

• 한국신재생에너지학회:학술대회논문집
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• 2007.11a
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• pp.84-84
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• 2007

• Bulletin of the Korean Chemical Society
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• v.32 no.1
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• pp.325-328
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• 2011

• Carbon letters
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• v.14 no.4
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• pp.206-209
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• 2013

Nanocomposites comprised of graphene oxide (GO) nanosheets and magnesium oxide (MgO) nanoparticles were synthesized by a sol-gel process. The synthesized samples were studied by X-ray powder diffraction, atomic force microscopy, transmission electron microscopy, and energy-dispersive X-ray analysis. The results show that the MgO nanoparticles, with an average diameter of 70 nm, are decorated uniformly on the surface of the GOs. By controlling the concentration of the MgO precursors and reaction cycles, it was possible to control the loading density and the size of the resulting MgO particles. Because the MgO particles are robustly anchored on the GO structure, the MgO/GOs nanocomposites will have future applications in the fields of adsorption and chemical sensing.

• Journal of Korean Academy of Fundamentals of Nursing
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• v.1 no.1
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• pp.99-104
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• 1994

• Proceedings of the Korean Magnestics Society Conference
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• 2004.12a
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• pp.169-170
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• 2004

• Proceedings of the Korea Technology Innovation Society Conference
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• 2015.05a
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• pp.491-500
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• 2015

• Proceedings of The Korean Society of Health Promotion Conference
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• 2009.05a
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• pp.104-105
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• 2009

• 대한핵의학회:학술대회논문집
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• 2005.11a
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• pp.319.1-319.1
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• 2005