METHOD FOR MANUFACTURING SPHERICAL HOLLOW YTTRIUM ALUMINUM GARNET FLUORESCENT BODY AND SPHERICAL HOLLOW YTTRIUM ALUMINUM GARNET POWDERS

摘要

The present invention relates to a manufacturing method of spherical hollow yttrium aluminum garnet (YAG) fluorescent body and a YAG fluorescent substance. According to an embodiment of the present invention, the manufacturing method of YAG fluorescent body comprises the following steps: heat treating an aluminum ion solution and obtaining aspherical aluminum hydroxide core substance; preparing a mixed solution in which yttrium, urea and a lanthanide element are mixed in deionized water; forming a shell outside of the spherical aluminum hydroxide core substance by dispersing the aluminum hydroxide core substance into the solution; and drying the aluminum hydroxide core substance where the shell is formed and obtaining the spherical hollow YAG by calcining the same in oxygen and reducing atmosphere.;COPYRIGHT KIPO 2014;[Reference numerals] (S10) Manufacturing method of spherical hollow YAG fluorescent body is a step of heat treating an aluminum ion solution and obtaining a spherical aluminum hydroxide core substance;(S20) Step of preparing a mixed aqueous solution in which yttrium, urea and lanthanide elements are mixed in deionized water;(S30) Step of forming a shell outside of the spherical aluminum hydroxide core substance by dispersing the aluminum hydroxide core substance into the solution;(S40) Step of drying the aluminum hydroxide core substance where the shell is formed and obtaining the spherical hollow YAG substance by calcining the same in the atmosphere