A Process Study for Manufacturing Ultra-Fine Titaniumn Diboride Powder.
Final rept. 26 Aug 83-25 Jun 84,
ADVANCED REFRACTORY TECHNOLOGIES INC BUFFALO NY
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Advanced Refractory Technologies has demonstrated the feasibility of utilizing a rotary high temperature carbon tube furnace to form reasonably pure titantium diboride powder. The reaction used was the carbothermic reduction of boron carbide in the presence of highly reactive titanium dioxide. The resultant titanium diboride powder was characterized by X-ray diffraction analysis and microscopic observation. The powder possessed a mean specific surface area of 0.5 square meter per gram. The rate of powder formation through use of the rotary kiln process was approximately five kilograms per hour. Experimental trials to form fully dense titanium diboride by hot pressing were unsuccessful. Further developmental work utilizing the rotary kiln process to attempt to achieve stoichiometric titanium diboride powder of the required purity for successful hot pressing is indicated.
- Industrial Chemistry and Chemical Processing
- Ceramics, Refractories and Glass
- Metallurgy and Metallography
- Fabrication Metallurgy