WO2004111291-A1  See also references of EP 1650320A1;  See references of EP 1650320A1EP1650320-A1  JHA R ET AL: "The formation of diffusion coatings on some low-alloy steels and their high temperature oxidation behaviour: Part 1 diffusion coatings" CALPHAD: COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY ELSEVIER UK, vol. 25, no. 4, December 2001 (2001-12), pages 651-665, XP002392169 ISSN: 0364-5916;  YOSHIDA M ET AL: "Passivation of stainless steel by -Al2O3 films resistant to ozonized water" JOURNAL OF VACUUM SCIENCE AND TECHNOLOGY A. VACUUM, SURFACES AND FILMS, AMERICAN INSTITUTE OF PHYSICS, NEW YORK, NY, US, vol. 17, no. 3, May 1999 (1999-05), pages 1059-1065, XP012004445 ISSN: 0734-2101;  YOSHIDA M ET AL: "Passivation of stainless steel by 0xCE,0x94-Al2O3 films resistant to ozonized water" JOURNAL OF VACUUM SCIENCE AND TECHNOLOGY A. VACUUM, SURFACES AND FILMS, AMERICAN INSTITUTE OF PHYSICS, NEW YORK, NY, US, vol. 17, no. 3, May 1999 (1999-05), pages 1059-1065, XP012004445 ISSN: 0734-2101;  YOSHIDA M ET AL: "Passivation of stainless steel by &dgr;-Al2O3 films resistant to ozonized water" JOURNAL OF VACUUM SCIENCE AND TECHNOLOGY A. VACUUM, SURFACES AND FILMS, AMERICAN INSTITUTE OF PHYSICS, NEW YORK, NY, US, vol. 17, no. 3, May 1999 (1999-05), pages 1059-1065, XP012004445 ISSN: 0734-2101;  FUKAI T ET AL: "Surface modification effects on hydrogen permeation in high-temperature, high-pressure, hydrogen-hydrogen sulfide environments" CORROSION USA, vol. 50, no. 7, July 1994 (1994-07), pages 522-530, XP002392170 ISSN: 0010-9312;  See also references of WO 2004111291A1;  See references of WO 2004111291A1EP1650320-B1  JHA R ET AL: "The formation of diffusion coatings on some low-alloy steels and their high temperature oxidation behaviour: Part 1 diffusion coatings" CALPHAD: COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY ELSEVIER UK, vol. 25, no. 4, December 2001 (2001-12), pages 651-665, XP002392169 ISSN: 0364-5916;  YOSHIDA M ET AL: "Passivation of stainless steel by -Al2O3 films resistant to ozonized water" JOURNAL OF VACUUM SCIENCE AND TECHNOLOGY A. VACUUM, SURFACES AND FILMS, AMERICAN INSTITUTE OF PHYSICS, NEW YORK, NY, US, vol. 17, no. 3, May 1999 (1999-05), pages 1059-1065, XP012004445 ISSN: 0734-2101;  FUKAI T ET AL: "Surface modification effects on hydrogen permeation in high-temperature, high-pressure, hydrogen-hydrogen sulfide environments" CORROSION USA, vol. 50, no. 7, July 1994 (1994-07), pages 522-530, XP002392170 ISSN: 0010-9312