| abstract |
The invention relates to a porous pyrochlore ceramic composite material and a preparation method thereof. The porous pyrochlore ceramic composite material is composed of Y 2 Ti 2 O 7 pyrochlore and CoAl 2 O 4 , and its porous structure is composed of a porous framework with a width of 309-502 nm and pores with a diameter of 188-323 nm, and a specific surface area of 45.24 m 2 /g～53.12m 2 /g; the preparation method combines rapid solidification technology, dealloying technology and high-temperature sintering method, and realizes high-temperature sintering of dealloyed products (stacked amorphous nanospheres) to obtain porous pyrochlore with uniform composition Ceramic composites. The invention is simple and efficient, and solves the shortcomings of the prior art, such as high requirements on personnel and equipment, complex process, high sintering temperature, high energy consumption, long production cycle, low output, and non-porous or low porosity of samples. |