SiC)p/2024 composites with high volume fraction（60%）were prepared by direct thermal powder thixoforming.The effects of forming pressure on porosity

flexural strength and thermal expansion coefficient of the composites prepared were investigated.The results reveal that a higher forming pressure is harmful for the improvement of density of the composites.With the forming pressure of 60 MPa

the flexural strength of the composites reaches 289.33 MPa.With the increase of forming pressure

the thermal expansion coefficient of the composites is increased firstly and then decreased When the forming pressure is 60 MPa

the thermal expansion coefficient of the composites reaches 6.687×10-6 K

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at 200℃.