One of the most promising CM in the field of aircraft and rocket construction are boron fiber, made with the use of reinforcing boron fiber and epoxy matrices .
For example, boron fibers, as well as fibers of refractory compounds (for example, carbides, nitrides, borides and oxides) with high strength and modulus of elasticity are used to harden aluminum, magnesium and their alloys in this case.
Boron fibers. This CM is a composition made of a polymeric binder (matrix) and boron fibers (filler).
In this CM with a matrix of aluminum alloys, boron fibers (sometimes coated with silicon carbide SiC) are used as the reinforcing filler .
The solutions of the previous equations are carried out for a composite composition of 60% boron fiber
and 40% epoxy resin.
This version has many revisions, new section numbers and headings, some reorganization, new sections on boron fiber
composites, and new information on glass fiber composites, and it deletes other information.
These materials were typically 40% graphite, 20% boron fiber, and 40% epoxy.
Until then, the only available reinforcement was glass, although boron fibers were also coming on the scene.
For example, in an aluminum-boron composite, the tool encounters a soft aluminum matrix and hard boron fibers
. Similarly, in a glass-epoxy composite, the tool encounters a low-temperature soft epoxy matrix and brittle glass fibers.
The boron fibers
come from Specialty Materials in the U.S., and have been used in the past for aerospace, Formula 1 race cars, and golf clubs.