Carbon fiber vs magnesium alloy? (talking about laptop cases)

I. Carbon fiber is more wear-resistant. Carbon fiber is composed of carbon elements of a special fiber. With high temperature resistance, friction, electrical conductivity, thermal conductivity and corrosion resistance, etc. The shape is fibrous, soft, can be processed into a variety of fabrics, due to its graphite microcrystalline structure along the fiber axis of the preferential orientation, so along the direction of the fiber axis has a very high strength and modulus. The density of carbon fiber is small, so the specific strength and specific modulus is high.

Two, carbon fiber has greater toughness. Carbon fiber composite material is transformed from organic fibers through a series of heat treatment, containing more than 90% of carbon inorganic high-performance fibers, is a new material with excellent mechanical properties, with the inherent nature of carbon material characteristics, but also with the textile fibers of the softness of the processability is a new generation of reinforcing fibers.

Expanded information:

Magnesium alloy product characteristics:

Magnesium alloy specific gravity Although heavier than plastic, however, the strength and elasticity rate per unit weight is higher than plastic, so in the case of the same strength parts, magnesium alloy parts can be made thinner and lighter than plastic. In addition, because the specific strength of magnesium alloy is also higher than that of aluminum alloy and iron, therefore, the weight of aluminum or iron parts can be reduced without reducing the strength of the parts.

Magnesium alloys have the highest relative specific strength (ratio of strength to mass). Specific stiffness (ratio of stiffness to mass) is close to that of aluminum alloys and steel and much higher than that of engineering plastics. In the elastic range, magnesium alloy is subjected to impact loads, the energy absorbed than the aluminum alloy parts of half the size, so magnesium alloy has a good anti-vibration and noise reduction performance.

Magnesium alloy melting point than aluminum alloy melting point is low, die-casting molding performance is good. Magnesium alloy casting tensile strength and aluminum alloy casting is comparable, generally up to 250MPA, the highest up to more than 600Mpa. yield strength, elongation and aluminum alloy is not much different.

Magnesium alloy also has good corrosion resistance, electromagnetic shielding properties, radiation performance, can do 100% recycling. Magnesium alloy parts higher stability die casting casting line processing dimensional accuracy, can be high-precision machining.

Baidu Encyclopedia - Carbon Fiber

Baidu Encyclopedia - Carbon Fiber Composite Materials

Baidu Encyclopedia - Magnesium Alloy