Preparation method of aluminum base gadolinium oxide neutron absorbing plate

[0065] The present invention will be further explained below in conjunction with the drawings:

[0066] figure 1 Shown, it is the state diagram of the aluminum-based gadolinium oxide mixed fine powder. The opening and closing mold 1 is rectangular and consists of a first opening and closing frame 3, a second opening and closing frame 4, a third opening and closing frame 5, and a fourth opening and closing frame. 6 Assemble and fix, the inside of the open-close mold is the mold cavity 2, and the graphite spacer 7 is placed at the bottom of the mold cavity 2, and the upper part of the graphite spacer 7 is the first graphite paper 8, and the upper part of the first graphite paper 8 is aluminum Based on the gadolinium oxide mixed fine powder 9, the upper part of the aluminum-based gadolinium oxide mixed fine powder 9 is the second graphite paper 10, and the upper part of the second graphite paper 10 is the graphite compact 11.

[0067] figure 2 Shown is the rolling state diagram of the aluminum-based gadolinium oxide neutron absorption plate. The position and connection relationship of each part must be correct and rolled in order.

[0068] The rolling mill is vertical. The upper left part of the rolling mill 12 is the left column 13, the upper right part is the right column 14, and the top is the top seat 15. The upper roller heating and rotating device 16 and the upper roller heating and rotating device are provided under the top seat 15 16 The lower part is connected to the upper roller 17; the lower roller heating and rotating device 19 is provided in the middle and upper part of the rolling mill 12, and the upper part of the lower roller heating and rotating device 19 is connected to the lower roller 18; between the upper roller 17 and the lower roller 18 is aluminum-based gadolinium oxide neutron Absorbing plate 20; the direction of rotation of the upper roller 17 is counterclockwise, the direction of rotation of the lower roller 18 is clockwise, the aluminum-based gadolinium oxide neutron absorption plate 20 is rolled from left to right; a liquid crystal display 21 is provided on the rolling mill 12 , Indicator light 22, power switch 23, upper roller heating and rotating controller 24, lower roller heating and rotating controller 25.

[0069] image 3 Shown is the morphology of the aluminum-based gadolinium oxide neutron absorption mixed fine powder. The figure shows that the gadolinium oxide particles are uniformly distributed on the aluminum matrix particles, and the gadolinium oxide particles are attached with copper particles on the surface.

[0070] Figure 4 Shown is the tensile fracture morphology of the aluminum-based gadolinium oxide neutron absorption board. The figure shows that the ductile fractures and brittle fractures are alternately distributed, indicating that the prepared aluminum-based gadolinium oxide neutron absorption board has good mechanical properties.

[0071] Figure 5 Shown is the X-ray diffraction intensity spectrum of the aluminum-based gadolinium oxide neutron absorption plate. The figure shows: mainly contains Al and Al 2 O 3 , Gd 2 O 3 , Al 2 Gd 3 , Gd 3 Al 5 O 12 , Cu 5 Gd, AlCu 4 , Al 8 Cu 11 These substances, Gd, indicate that reaction products are formed during the sintering process, and the gadolinium copper reinforcing phase is successfully synthesized during the sintering process.