Acknowledgement
Supported by : 산학협동재단
Applied Chemistry for Engineering (공업화학)
- Volume 5 Issue 2
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- Pages.263-273
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- 1994
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- 1225-0112(pISSN)
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- 2288-4505(eISSN)
A Study on the Synthesis of Titanium Hydride by SHS(Self-propagating High-temperature Synthesis) Method and the Preparation of Titanium Powder
SHS법에 의한 티타늄 수소화물 합성 및 티타늄 분말 제조에 관한 연구
- Ha, Ho (Dept. of Chem. Eng., College of Engineering Inha Univ.) ;
- Park, Seung-Soo (Dept. of Chem. Eng., College of Engineering Inha Univ.) ;
- Lee, Hee-Cheol (Dept. of Chem. Eng., College of Engineering Inha Univ.)
- Received : 1993.09.17
- Accepted : 1993.12.10
- Published : 1994.04.01
Abstract
Titanium powder prepared by dehydrogenating the titanium hydride which is synthesized by reacting Ti-sponge (99.67%) with hydrogen using the self-propagating high-temperature synthesis method. In the synthesis of titanium hydride, the particle size of the product was found dependent on the amount of hydrogen incorporated into the titanium such that the particle size of titanium hydride decreased with increasing hydrogen pressure and after-burn time. In the dehydrogenation process, as the dehydrogenation time increase, the particle size of titanium powder increased due to partial melting and sintering of titanium particles.
SHS법에 의해 Ti-sponge(99.67%)를 수소화반응시켜 티타늄 수소화물을 합성한 다음, 이 분말을 탈수소시켜 티타늄 금속 분말을 제조하였다. 티타늄 수소화물 합성과정에서는 티타늄에 흡장된 수소의 양에 따라 티타늄 수소화물의 입도가 변하였으며, 수소의 압력이 높을수록, 연소파 전파 후 반응시간이 길수록 입도는 감소하였다. 탈수소 반응에서는 탈수소 시간이 길수록 탈수소된 티타늄 입자들이 소결 및 부분 용융되어 입도가 커지는 것으로 나타났다.
Keywords