WO2007036274-A2  KUMAR, K. S. ET AL: "Low temperature embrittlement of Ni3(Si, Ti) alloys" INTERMETALLICS, vol. 4, 1996, pages 309-318, XP002429610;  MAIER, C.U. ET AL: "Hydrogen evolution on platinum-coated p-silicon photocathodes" INT. J. HYDROGEN ENERGY, vol. 21, no. 10, 1996, pages 859-864, XP002429607;  TAKASUGI, T. ET AL: "Environmental embrittlement and grain boundary segregation of boron and carbon in Ni3(Si, Ti) alloys" MATERIALS SCIENCE AND ENGINEERING A, vol. 192/193, 1995, pages 407-412, XP002429611;  TAKASUGI, T. ET AL: "Environmental embrittlement and grain boundary segregation of boron and carbon in Ni3(Si, Ti) alloys" MATERIALS SCIENCE AND ENGINEERING A, vol. 192193, 1995, pages 407-412, XP002429611;  TAKASUGI, T.: "Hydrogen-lattice defect interaction in embrittlement of L12 ordered intermetallics: a review" INTERMETALLICS, vol. 4, 1996, pages S181-S187, XP002429609;  VIJH, A. K. ET AL: "Electrolysis of water on silicides of some transition metals in alkaline solutions" INTERNATIONAL JOURNAL OF HYDROGEN ENERGY , 17(7), 479-83 CODEN: IJHEDX; ISSN: 0360-3199, vol. 17, no. 7, 1992, pages 479-483, XP002429608US8449861-B2  Maier, C.U. et al.: Hydrogen evolution on platinum-coated p-silicon photocathodes; Int. J. Hydrogen Energy, vol. 21, No. 10, 1996; pp. 859-864; XP002429607 (see international search report).;  Vijh, A.K. et al.: Electrolysis of water on silicides of some transition metals in alkaline solutions; International Journal of Hydrogen Energy; col. 17 No. 7; pp. 479-483, XP002429608 (see international search report).;  Takasugi, T.: Hydrogen-lattice defect interaction in embrittlement of L12 ordered intermetallics: a review; Intermetallics, vol. 4, 1996, pp. S181-S187; XP002429609 (see international search report).;  Kumar, K.S. et al.: Low temperature embrittlement of Ni3(Si, Ti) alloys; Intermetallics; vol. 4, 1996, pp. 309-318; XP002429610 (see international search report).;  Takasugi, T. et al.: Environmental embrittlement and grain boundary segregation of boron and carbon in Ni3(Si, Ti) alloys; Materials Science and Engineering A, vol. 192/193; pp. 407-412; 1995; XP002429611 (see international search report).