▎ 摘　　要

NOVELTY - Parallel arrangement of graphene/ceramic composites material comprises ceramic matrix which is any one of silicon oxide, aluminum oxide, Zirconium dioxide or silicon carbide. USE - Parallel arrangement of graphene/ceramic composites material. ADVANTAGE - The parallel arrangement of graphene/ceramic composites material has low raw material cost, simple preparation process, short time, good mechanical properties and good electromagnetic shielding effectiveness. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing parallel-arranged graphene/ceramic composite materials, which involves: (A) using expandable graphite and ceramic precursor as raw materials, where mass ratio of the expandable graphite to the ceramic precursor is weighed as 1:400-200, and the ceramic precursor is tetraethyl orthosilicate, ethyl ethoxide or zirconium isopropoxide, the ceramic precursor is liquid at room temperature; (B) heating raw material expandable graphite under normal pressure, the heating temperature is 750-950 degrees C, and the heating time is 20-30 seconds to obtain expanded graphite; (C) placing expanded graphite and the raw earthenware precursor in the same container so that the ceramic precursor completely infiltrates the expanded graphite, performing vacuum defoaming at 8-12 Pascal, and the vacuum defoaming time is 15-30 minutes, a solid-liquid mixture composed of expanded graphite and a ceramic precursor is obtained; (D) magnetic stirring of solid-liquid mixture, stirring power is 100-200 Watt, rotation speed is 1200-1400 revolution/minute, stirring time is 2.5-4.5 hours, and the graphene is suspended in the ceramic precursor liquid; (E) adding ethanol solution with a mass ratio of ethanol to water of 1:1, adding ethanol solution to the suspension, and then drying product under rotation, and the rotation speed is 30-40 revolution/minute, drying temperature is 60-70 degrees C, and drying time is 45-60 minutes; (F) drying product at a temperature of 60-90 degrees C for 24-30 hours, and obtaining dry graphene/ceramic mixed powder; and (G) passing graphene/ceramic mixed powder through a 200-mesh sieve, heating to a sintering temperature of 1300-1500 degrees C at a heating rate of 50-150 degrees C/minute under a pressure of 30-50 mega Pascal, and kept warm for 3-10 minutes, sintering graphene/ceramic mixed powder to obtain graphene-aligned ceramic matrix composites.