Calvert, E. D. <br/><br/>
Zirconium oxide molds for small molybdenum investment castings 
by E.D. Calvert and H.W. Leavenworth, Jr 
 - [Washington, D.C.]  U.S. Dept. of the Interior, Bureau of Mines  1982 
 - 26 p.  ill.  28 cm 
 - Report of investigations  8624 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Molding materials<br/>Zirconium oxide<br/>Precision casting<br/>Molybdenum castings