Direct calciothermic reduction of porous calcium titanate to porous titanium
Copyright policy )Direct calciothermic reduction of porous calcium titanate to porous titanium
A metallurgical material integration concept, using porous calcium titanate (CaTiO3) as raw material, was put forward for preparation of metallic titanium powder and porous titanium by calciothermic reduction. Porous metallic titanium was prepared by calcium vapor reduction at 1273 K for 6 h with two types of interconnected pores in titanium samples. The interconnected macropores about 50-300 μm were inherited from porous CaTiO3, and the micropores about 5-40 μm were made by leaching removal of byproduct CaO in reduction products. Metallic porous titanium was fabricated in Ca-dissolved CaO-CaCl2 molten salt mixtures by self-sintering and had a good interconnectivity inside with thickness about 155 μm and the porosities of the porous titanium are 65-81%.
- Kunming University China (People's Republic of)
- Kunming University of Science and Technology China (People's Republic of)
Titanium, X-Ray Diffraction, Materials Testing, Image Processing, Computer-Assisted, Spectrometry, X-Ray Emission, Thermodynamics, Calcium, Models, Theoretical, Porosity
Titanium, X-Ray Diffraction, Materials Testing, Image Processing, Computer-Assisted, Spectrometry, X-Ray Emission, Thermodynamics, Calcium, Models, Theoretical, Porosity
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