지현석 안재평 허무영 박종구 2024-01-21T08:01:25Z 2024-01-21T08:01:25Z 2021-09-06 2003-12 1225-7591 https://pubs.kist.re.kr/handle/201004/138051 TiO2 nanopowder has been synthesized by means of the flame method using a precursor of titanium tetraisopropoxide (TTIP, Ti(OC3H7)4). In order to clarify the effect of cooling rate of hot flame on the formation of TiO2 crystalline phases, the flame was controlled by varying the mixing ratio and the flow rate of gases. Anatase phase was predominantly synthesized under the condition having the steep cooling gradient in flame, while a slow cooling gradient enabled to form almost rutile TiO2 nanopowder of above 95%. 한국분말야금학회 화염법으로 제조된 TiO2 나노분말의 결정구조에 미치는 화염가스 유량의 영향 Effect of the Flow Rate of Flame Gases on the Crystal Structure of TiO2 Nanopowder Synthesized by Flame Method Article 2 한국분말야금학회지, v.10, no.6, pp.448 - 455 한국분말야금학회지 10 6 448 455 kci ART000997415 Nanopowder Flame temperature Cooling gradient Cooling rate Anatase phase Rutile phase Nanopowder Flame temperature Cooling gradient Cooling rate Anatase phase Rutile phase