▎ 摘　　要

NOVELTY - Method comprises (i) mixing boron nitride, aluminum nitride, carbon nano-tube for ball milling, homogenizing, obtaining high heat-conducting fine powder, (ii) dispersing high heat conducting fine powder in water, adding dopamine hydrochloride and catalyst, heating, centrifuging, drying to obtain modified high heat-conducting fine powder, (iii) dispersing modified mixed fine powder in the hydrolysis liquid, and obtaining the porous alumina coated high heat-conducting fine powder material, (iv) adding the porous alumina coated high heat conducting fine powder material into water, adding modifier, heating, filtering, drying to obtain the modified porous alumina coated high heat conducting fine powder material, (v) dissolving graphene oxide in water, adding modified porous alumina, obtaining graphene oxide/porous alumina coated with high heat-conducting fine powder material, (vi) adding graphene oxide/porous alumina coated high heat conducting fine powder material, and drying. USE - The method is useful for preparing wear-resistant high heat-conducting high temperature-resistant material. ADVANTAGE - The material: has excellent wear resistance, high temperature resistance, fire resistance and heat conductivity, good mechanical property, which is suitable for condition of circulating fluidized bed boiler, improves the strength of the boiler lining after forming, and has wide application prospect. DETAILED DESCRIPTION - Preparing wear-resistant high heat-conducting high temperature-resistant material comprises (i) mixing boron nitride, aluminum nitride, carbon nano-tube for ball milling, homogenizing, obtaining high heat-conducting fine powder, (ii) preparing modified high heat-conducting fine powder by uniformly dispersing the high heat conducting fine powder in water, adding dopamine hydrochloride and catalyst, heating and reacting, centrifuging, drying to obtain modified high heat-conducting fine powder, (iii) uniformly dispersing the modified mixed fine powder in the hydrolysis liquid, stirring and adding aluminum isopropoxide, heating and hydrolyzing, filtering, drying, calcining, crushing to obtain the porous alumina coated high heat-conducting fine powder material, (iv) adding the porous alumina coated high heat conducting fine powder material into water, adding modifier, heating reaction, filtering, drying to obtain the modified porous alumina coated high heat conducting fine powder material, (v) dissolving the graphene oxide in water, adding modified porous alumina to coat high heat-conducting fine powder material, performing ultrasonic reaction, filtering, drying, obtaining graphene oxide/porous alumina coated with high heat-conducting fine powder material, (vi) adding the graphene oxide/porous alumina coated high heat conducting fine powder material obtained in step (v) into water, dispersing uniformly, adding aqueous ammonia and hydrazine hydrate, heating reaction, filtering, washing, drying to obtain graphene/porous alumina coated with high heat-conducting fine powder material. INDEPENDENT CLAIMs are also included for: Wear-resistant high heat-conducting high temperature-resistant material, prepared by above method. High heat-conducting wear-resistant material for circulating fluidized bed boiler comprising 18-24 pts. wt. zirconium corundum fine powder, 10-12 pts. wt. nano aluminum nitride, 1-2 pts. wt. graphene, 24-25 pts. wt. silicon carbide, 9-15 pts. wt. zirconium oxide fine powder, 6-8 pts. wt. calcium aluminate cement, 4-6 pts. wt. aluminum oxide fine powder, 3-5 pts. wt. wear-resistant high heat-resistant material, 0.1-0.2 pts. wt. dispersant, 0.5-1 pts. wt. beryllium oxide fine powder, and 0.2-0.4 pts. wt. vanadium dioxide fine powder. Preparing high heat-conducting wear-resistant material for circulating fluidized bed boiler comprising (1) mixing zirconium corundum fine powder, nano aluminum nitride, zirconium oxide fine powder, aluminum oxide fine powder, beryllium oxide fine powder, vanadium dioxide fine powder, ball milling to obtain powder, (2) adding the graphene, silicon carbide, wear-resistant high heat-resistant high temperature resistant material into calcium aluminate cement, stirring and mixing to obtain the mixed material, (3) stirring and mixing the powder obtained in the step (1) and the mixed material obtained in step (2) for a first time period, adding dispersant, continuously stirring and mixing for the second time period.