Abstract: A metal vapor generator comprises a slug prepared from: a mixture of titanium powders, boron powders, and certain other metal powders selected from a group consisting of: alkali metals (Na, K, Cs), alkali earths (Ba, Ca), groups (IVA (Sn, Ge, Si), aluminum, copper, and other metals whose boiling point is generally below 3500.degree. C. The slug is reacted to generate heat and temperatures in excess of 2700.degree. C, by which selected metals of the above group and mixture may be vaporized.