4Bayer Corp, Renner M. Niobium for Hot Concentrat- ed Nitric Acid: Material Selection and Field Experi- ences with Nb Shell b- TuIce Heat Exchangers[J/OL]. Reactive Metals Conference Proceding, 1999-03-02 [2012-02-14]. http://www, twca. com/pdf/1999/, pdf.
5Schussler M. TIC Bulletin [J].Tantalum-Niobium In- ternational Study Center(USA), 1994, (78) : 3-7.
6Alain Robin, Jorge Luiz Rosa. Corrosion Behavior of Niobium, Tantalum and Their alloys in Hot Hydro- chloric and Phosphoric Acid Solutions[J]. Internation- al Journal of Refractory Metals and Hard Materials, 2000, (18) : 13-21.
7John Banker. Recent Successes in Tantalum Clad Pres- sure Vessel Manufacture:A New Generation of Tanta- lum Clad Vessels[J]. Corrosion Applications Confer- ence,2003 (22) : 163-169.
8Ronald A Graham, Richard C Sutherlin. Niobium and Niobium Alloys in Corrosive Applications [Z]. http:// www. cbmm. com. br/portag/sources/techlib/science_ techno/table_content/sub_ 3/images/pdfs/024. pdf.