Flaky ceramic/aluminum alloy composite material and preparation method thereof

• Main Authors: ZHOU XIAOLONG, WANG JING, YANG ZHIKUN, HE LIANG, YU JIE, HONG ZHENJUN
• Format: Patent
• Language: Chinese; English
• Published: 29.06.2021
• Subjects: ALLOYS; CASTING; CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES; CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS; CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; FERROUS OR NON-FERROUS ALLOYS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS; METALLURGY; METALLURGY OF IRON; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; PERFORMING OPERATIONS; POWDER METALLURGY; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The invention discloses a flaky ceramic/aluminum alloy composite material and a preparation method thereof, and belongs to the technical field of ceramic-metal connection. The composite material comprises flaky ceramic and an aluminum alloy layer, wherein the flaky ceramic is coated in the aluminum alloy layer; and a Ti-Al alloy transition layer is further arranged between the flaky ceramic and the aluminum alloy layer. The preparation method comprises the steps of plasma-spraying Ti-Al alloy on the surface of the flaky ceramic to form the transition layer, then casting an aluminum alloy, and carrying out heat treatment to obtain the composite material. According to the flaky ceramic/aluminum alloy composite material and the preparation method thereof provided by the invention, the Ti-Al alloy is used as the transition layer for connecting a ceramic chip and the metal aluminum, so that the bending strength and the deformation resistance of the composite material are obviously improved; and meanwhile, the flak