ZnS ZnS NANO POWDER CERAMICS FOR INFRARED TRANSMITTANCE HAVING CUBIC STRUCTURE AND METHOD OF MANUFACTURING THE SAME

摘要

ZnO nanoparticles were obtained by hydrothermal synthesis using ZnSO ₄ ∙ 7H ₂ O and Na ₂ S ∙ 9H ₂ O as one of the solution processes and then SPS (Spark Plasma Sintering) or HP (Hot Press) Sintered ZnS nano-powder sintered body having a cubic structure capable of improving physical properties such as relative density and infrared light transmittance while lowering manufacturing cost, And a manufacturing method thereof. A method of manufacturing a ZnS nano powder sintered body for infrared transmission having a cubic structure according to the present invention comprises the steps of (a) mixing ZnSO ₄ .7H ₂ O and Na ₂ S 9H ₂ O in a weight ratio of more than 1: 1 to less than 1: 1.3 Mixing and hydrothermal synthesis at 100 to 240 ° C for 1 to 24 hours; (b) filtering and drying the hydrothermally synthesized reactant to obtain a ZnS nanopowder; And (c) sintering the obtained ZnS nano-powder at 900 to 1,000 ° C to form a ZnS nano-powder sintered body.