| 摘要 |
PROBLEM TO BE SOLVED: To provide a Sn-containing In oxide particle capable of being applied for a large sized cathode ray tube and a high precision electrode of a display device by coating system, exhibiting high translucency and conductivity and having an acicular or a plate like shape. SOLUTION: A Sn-containing In hydroxide is obtained by adding an alkali solution into a hydrochloric acid solution containing In and Sn to adjust to pH 3, elevating the liquid temperature up to 90 deg.C, further adding the alkali solution to adjust to pH 7.5, filtering, dehydrating and drying. The Sn-containing In oxide having a plate-like shape of 0.041μm major axial diameter, 0.025μm minor axial diameter and the axial ratio (major axial diameter/minor axial diameter) of 1.64 is obtained by charging the resultant Sn-containing In hydroxide into a tubular furnace and firing at 600 deg.C under an atmosphere where steam and NH3 are added into gaseous nitrogen for 2 hr.
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