Titanium oxide flint material - is made by sintering a powdered mixt. of titanium metal and titania in a specific wt. ratio

摘要

A Ti oxide of formula TiOx (where x = 0.3-1.2) is used as a flint material. It may be made by adding Ti powder and TiO2 powder in a ratio of 5-3:1-4 to a binder, moulding, sintering at 1000-1500 degrees C in vacuo in a protective atmos., granulating the moulding and, opt. after adding a binder, moulding to the flint's shape and, finally, sintering at 1200-1450 degrees C in vacuo or in a protective atmos. TiO2 is more easily available than the Ce misch metal commonly used, and the flint is made simply.