| 主权项 |
1. A method of reducing or eliminating contamination of silicon-coated particles due to contact with a surface in a fluidized bed reactor, the method comprising:
providing, in a fluidized bed reactor, a fluidized bed reactor component having a surface facing silicon-coated particles during operation of the fluidized bed reactor, the surface comprising metal that is at least partially coated with a protective layer comprising a material having an ultimate tensile strength of at least 700 MPa at 650° C., wherein the protective layer is
a cobalt-based alloy comprising 25-35% Cr, ≦10% W, ≦10% Ni, ≦5% Mo, ≦3% Fe, ≦2% Si, ≦2% C, ≦1.5% Mn, ≦1% B, ≦0.05% P, ≦0.05% S, and 30.5-75% cobalt, ora nickel-based alloy comprising 4-30% Mo, 5-25% Cr, 2-15% Co, ≦3.5% Ti, ≦2% Fe, ≦2% Al, ≦1% Mn, ≦1% Si, ≦0.5% Cu, ≦0.1% C, ≦0.1% Zr, ≦0.01% B, and 23.4-89% nickel; and operating the fluidized bed reactor to make silicon-coated particles. |
