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Aluminum silicon carbide ceramics used for aerospace, automotive, military, electronics, sports utensil fields

Aluminum Silicon Carbide

Aluminum silicon carbide ceramics used for aerospace, automotive, military, electronics, sports utensil fields

AISiC is a composite material, with high specific strength and specific stiffness, low thermal expansion coefficient, low density, high micro yield strength, good dimensional stability, thermal conductivity, wear resistance, fatigue resistance and other excellent mechanical and physical properties, in aerospace, automotive, military, electronics, sports equipment field are widely used.


Aluminum silicon carbide (AlSiC) is the combination of high thermal conductivity of metal and low thermal expansion of ceramics, can meet the multi-functional characteristics and design requirements, the density is 1/3 of steel, the strength is higher than pure aluminum and carbon steel, With high thermal conductivity, high wear resistance, low expansion, high stiffness, low density, low cost and other comprehensive excellent performance.

    Aluminum silicon carbide is widely used in rail transit, new energy vehicles, aerospace, military and other fields, is the best choice for a new generation of high-power electronic devices.

    Application Prospect

    Aluminum matrix composites are widely used in aviation, aerospace and military departments because of their special advantages.

    SiC particle reinforced aluminum matrix composite sheets will be used in the future of advanced fighter aircraft covering and tail reinforcement, and NASA used graphite/aluminum composite materials as the length of 20m cargo bay in the space shuttle.

    In addition to the aerospace field, aluminum matrix composites also play an important role in transportation vehicles.

    Application of aluminum silicon carbide in electronic and optical instruments

    SiC reinforced aluminum matrix composite material, because of its small thermal expansion coefficient, low density and good thermal conductivity, is suitable for the manufacture of electronic equipment lining materials and heat sinks and other electronic devices. The thermal expansion coefficient of SiC particle reinforced aluminum matrix composites is fully matched with the thermal expansion of electronic device materials, and the electrical and thermal conductivity are also very good.

    In the application research of precision instruments and optical instruments, aluminum matrix composite materials are used to manufacture components such as brackets and secondary mirrors of telescopes. In addition, aluminum matrix composite materials can also manufacture precision parts of inertial navigation systems, rotating scanning mirrors, infrared viewing mirrors, laser mirrors, laser gyroscopes, mirrors, mirror bases and optical instrument brackets and many other precision instruments and optical instruments.

    Aluminum silicon carbide is a kind of lightweight and high-strength multi-functional composite material, and it has developed into a new generation of structural materials after Al alloy and Ti alloy, and therefore has become the mainstream of the development and research of metal matrix composites at present. 

    Component Tensile property of greenhouse bending strength
    Mpa
    elasticity modulus density
    thermal conductivity
    thermal expansion coefficient
    heat treatment condition strength of extension   (Mpa) yield strength  (Mpa) extend rate %
    15vol%SiC/2009Al Annealed state 230-250 110-130 8-15 / 95-105 2.80-2.85 150-190 15-17
    T6 state 500-570 420-450 4-9 /
    17vol%SiC/2009Al Annealed state 240-300 120-160 4-11 / 100-110 2.83-2.85 175-190 14-17
    T6 state 500-600 430-470 3-6 /
    17vol%SiC/6092Al Annealed state 210-240 105-130 8-15 / 105-110 2.78-2.80 175-200 15-17
    T6 state 500-540 400-470 4-8 /
    20vol%SiC/2009Al Annealed state 260-310 130-150 4-8 / 105-115 2.83-2.85 160-195 14.5-16.5
    T6 state 520-580 360-400 3.5-6.5 /
    25vol%SiC/2009Al Annealed state 270-310 150-180 4.0-7.5 / 115-125 2.85-2.87 165-200 13.5-14.5
    T6 state 580-620 450-500 2.0-3.5 /
    30vol%SiC/6092Al Annealed state 210-240 110-130 4.5-8.5 / 120-130 2.80-2.83 195-220 12.5-14.5
    T6 state 520-560 400-495 1.5-4.5 /
    35vol%SiC/6092Al Annealed state 240-250 150-185 4-7 / 135-140 2.85-2.88 195-205 12.5-14.0
    T6 state 540-600 495-415 0.5-1.0 /
    35vol%SiC/6092Al Annealed state 320-345 185-210 3-4 / 135-140 2.85-2.88 165-185 12.0-14.0
    T6 state 540-595 440-485 1.0-1.5 /
    40vol%SiC/6092Al Annealed state 255-270 170-220 3-4 540-700 140-155 2.88-2.90 195-205 11.5-13.5
    T6 state 510-550 460-490 1.0-2.5 /
    45vol%SiC/6092Al Annealed state 265-310 200-250 0.5-3.5 540-655 150-170 2.91-2.93 175-220 11.0-12.5
    T6 state 580-620 525-570 0.5-2.5 /
    55vol%SiC/6061Al Annealed state / / / 450-550 180-200 2.95-2.99 190-225 8.5-10.0
    60vol%SiC/6061Al Annealed state / / / 425-550 200-225 2.96-2.99 190-225 8.0-9.0
    65vol%SiC/A356Al Annealed state / / / 400-450 225-245 3.00-3.01 200-220 7.0-8.0