▎ 摘　　要

NOVELTY - High temperature resistant ceramic comprises 20-25 pts. wt. cristobalite, 18-20 pts. wt. zirconium diboride, 15-20 pts. wt. phenolic resin, 12-15 pts. wt. coke, 10-15 pts. wt. porcelain clay, 10-15 pts. wt. calcium feldspar, 5-10 pts. wt. sodium silicate, 2-5 pts. wt. cerium oxide, 2-5 pts. wt. nano-grade molybdenum oxide, 2-5 pts. wt. graphene, and proper amount of deionized water. USE - High temperature resistant ceramic. ADVANTAGE - The high temperature resistant ceramic is east to prepare and cots-effective, has rational design, adopted system of crushing firstly raw material to obtain superfine powder technology, ensured size of powder, and has improved heat-resistant temperature by added phenolic resin and nano-grade molybdenum oxide at heat-resisting temperature more than 4000 degrees C, good bending strength which greatly increased quality of ceramic, satisfied use requirement, and has good economic benefit. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing high temperature resistant ceramic, which involves: (A) mixing cristobalite, coke, calcium feldspar into calciner, and ablation at 550-600 degrees C for 0.5-1 hours; (B) placing into crusher to crushing over 70-80 mesh sieves, placing into ball mill, adding graphene at rate of 1500-2000 revolutions per minute high speed ball milling for 0.5-1 hours, drying, and crushing to obtain particle I; (C) adding zirconium, porcelain clay, sodium silicate, and cerium oxide into calciner, and ablation for 1.2-1.5 hours, at 450-500 degrees C; (D) placing into crusher to crushing over 80-90 mesh sieves placing into ball mill, adding phenolic resin at rate of 1500-2000 revolutions per minute high speed ball milling for 0.5-1 hours, drying, and crushing to obtain particle II; (E) adding particle II into ball mill, and adding nano-scale molybdenum oxide at rate of 6000-6500 revolutions per minute high-speed ball milling for 10-20 minutes to obtain composite fine powder; (F) adopting spraying normal direction composite ultra-fine powder, and adding proper de-ionized water, stirring for 10-15 minutes; (G) using dry pressure process for embryonic body molding at pressure of 320-350 mega Pascal; and (H) pre-burning at normal pressure and high temperature of 1500-1800 degrees C for 3-4 hours, and sintering at 2300-2500 degrees C for 7.5-8.5 hours to obtain final product.