This paper analyzes the technical and demand problems of the current automotive and aviation engines, and
introduces the applications of carbon fiber reinforced metal matrix composites and resin matrix composites in the
piston and connecting rods of automobile engines. Composite materials and ceramic matrix composites on civil
aircraft engines, as well as composite materials and composites in military aerospace engines (solid rocket motors and
transcendental ramjet) applications, and some of the composite materials The application raises key questions and
suggestions.

Carbon fi ber reinforced polymer matrix composites have been the focus of research. As the most widely used epoxy
resin in all matrix materials, it is also the most studied. In this paper, the modification of TDE-85 epoxy resin, the
curing properties of curing agent and the preparation method of prepreg were reviewed. The progress and application
of carbon fi ber reinforced epoxy resin composites at home and abroad were reviewed, made carbon fi ber / epoxy resin
composite materials in the automotive fuel cell application prospects.

This paper introduces the performance and preparation technology and forming technology of particle reinforced
aluminum matrix composites. The application status of particle reinforced aluminum matrix composites is illustrated,
and its development prospect is pointed out.

This paper chooses magnesium as the matrix of composite materials, selects carbon fi ber as reinforcement, and
designs the composite scheme according to the structure and performance of Mg-based composites. The performance
characteristics and application prospect of fiber-reinforced magnesium matrix composites are introduced. Wait. In
this paper, the process of preparing carbon fi ber magnesium matrix composites by compression casting method and
spray deposition method is designed. The process fl ow chart of these two design schemes is determined by analyzing
the principle of these two kinds of preparation methods, and the specifi c problems of the process are analyzed and
summarized.

In recent years, a variety of composite materials preparation technology has been updated, from ceramic matrix
composites, metal matrix composites to polymer matrix composites, a variety of preparation techniques have been
greatly improved, making the composite properties and applications signifi cantly improved. This paper reviews several
important preparation methods and applications of ceramic matrix composites, metal matrix composites and polymer
matrix composites.