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    37 Products
    About Composites
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    Compare our offering of composites to find the right material for you.

    Fracture- and Thermal-Shock-Resistant Silicon Nitride Ceramic Balls

    Image of Product. Front orientation. Ceramic. Fracture- and Thermal-Shock-Resistant Silicon Nitride Ceramic Balls.
    Often used to create bearings, silicon nitride ceramic is harder than many types of bearing steel but is lightweight and can be easily polished. It also withstands high temperatures.
    Temp.
    Dia.
    Dia. Tolerance
    Sphericity
    Percentage
    Color
    Min.
    Max.,
    ° F
    Performance
    Dielectric
    Strength
    Porosity
    Compressive
    Strength, psi
    Hardness
    Pkg.
    Qty.
    Pkg.
    1/32"-0.00004" to 0.00005"99.99995%BlackNot Rated1,470Fracture Resistant, Thermal Shock ResistantNot Rated13%550,000Rockwell C7059576K11000000
    1/16"-0.00004" to 0.00005"99.99995%BlackNot Rated1,470Fracture Resistant, Thermal Shock ResistantNot Rated13%550,000Rockwell C7059576K220000
    3/32"-0.00004" to 0.00005"99.99995%BlackNot Rated1,470Fracture Resistant, Thermal Shock ResistantNot Rated13%550,000Rockwell C7059576K240000
    1/8"-0.00004" to 0.00005"99.99995%BlackNot Rated1,470Fracture Resistant, Thermal Shock ResistantNot Rated13%550,000Rockwell C7059576K260000
    5/32"-0.00004" to 0.00005"99.99995%BlackNot Rated1,470Fracture Resistant, Thermal Shock ResistantNot Rated13%550,000Rockwell C7059576K280000
    3/16"-0.00004" to 0.00005"99.99995%BlackNot Rated1,470Fracture Resistant, Thermal Shock ResistantNot Rated13%550,000Rockwell C7029576K320000
    7/32"-0.00004" to 0.00005"99.99995%BlackNot Rated1,470Fracture Resistant, Thermal Shock ResistantNot Rated13%550,000Rockwell C7029576K1200000
    1/4"-0.00004" to 0.00005"99.99995%BlackNot Rated1,470Fracture Resistant, Thermal Shock ResistantNot Rated13%550,000Rockwell C7029576K340000
    9/32"-0.00004" to 0.00005"99.99995%BlackNot Rated1,470Fracture Resistant, Thermal Shock ResistantNot Rated13%550,000Rockwell C7029576K360000
    5/16"-0.00004" to 0.00005"99.99995%BlackNot Rated1,470Fracture Resistant, Thermal Shock ResistantNot Rated13%550,000Rockwell C7029576K1300000
    3/8"-0.00004" to 0.00005"99.99995%BlackNot Rated1,470Fracture Resistant, Thermal Shock ResistantNot Rated13%550,000Rockwell C7019576K380000
    1/2"-0.00004" to 0.00005"99.99995%BlackNot Rated1,470Fracture Resistant, Thermal Shock ResistantNot Rated13%550,000Rockwell C7019576K4600000
    9/16"-0.00004" to 0.00005"99.99995%BlackNot Rated1,470Fracture Resistant, Thermal Shock ResistantNot Rated13%550,000Rockwell C7019576K4800000
     

    Extra-Strength Fracture- and Thermal-Shock-Resistant Silicon Nitride Ceramic Discs

    Image of Product. Front orientation. Ceramic. Extra-Strength Fracture- and Thermal-Shock-Resistant Silicon Nitride Ceramic Discs.
    To resist deforming, expanding, or cracking when compressed, bent, or exposed to quick temperature changes, these silicon nitride ceramic discs have been pressed into ultra-dense discs. They’re just as strong and fracture resistant as zirconia ceramic, and hold their strength and shape at higher temperatures. All are stronger, harder, and more fracture resistant than most other ceramics.
    These discs are good for use as high-stress parts, such as engine parts. You can even use them as a substrate or insulator for electronic parts, such as computer chips. Since they stand up to temperature swings better than silicon carbide and mullite, they’re also good for use in furnaces and immersion heaters. Able to withstand wear, these discs can be used to make bearings, rollers, bushings, and seals.
    All of these discs hold up to harsh chemicals, such as acids, but may corrode from nitric acid. They are not as corrosion resistant as silicon carbide.
    Temp.
    Dia.
    Dia.
    Tolerance
    Lg.
    Color
    Min.
    Max.,
    ° F
    Fabrication
    Porosity
    Compressive
    Strength, psi
    Each
    1 3/32"0" to 0.020"17/32"GrayNot Rated1,830Fired13%580,0005693N120000000
    1 3/32"0" to 0.020"21/32"GrayNot Rated1,830Fired13%580,0005693N13000000
    1 3/32"0" to 0.020"7/8"GrayNot Rated1,830Fired13%580,0005693N14000000
    1 3/32"0" to 0.020"1 1/4"GrayNot Rated1,830Fired13%580,0005693N15000000
    1 29/32"0" to 0.020"13/16"GrayNot Rated1,830Fired13%580,0005693N16000000
    1 29/32"0" to 0.020"31/32"GrayNot Rated1,830Fired13%580,0005693N17000000
    1 29/32"0" to 0.020"1 1/8"GrayNot Rated1,830Fired13%580,0005693N18000000
    1 29/32"0" to 0.020"1 3/8"GrayNot Rated1,830Fired13%580,0005693N19000000

    Extra-Strength Fracture- and Thermal-Shock-Resistant Silicon Nitride Ceramic Sheets

    Image of Product. Front orientation. Ceramic. Extra-Strength Fracture- and Thermal-Shock-Resistant Silicon Nitride Ceramic Sheets.
    Pressed into ultra-dense sheets, these silicon nitride ceramic sheets resist deforming, expanding, or cracking when compressed, bent, or exposed to quick temperature changes. They’re just as strong and fracture resistant as zirconia ceramic, and hold their strength and shape at higher temperatures. All are stronger, harder, and more fracture resistant than most other ceramics.
    Use these sheets for high-stress parts, such as engine parts. You can even use them as a substrate or insulator for electronic parts, such as computer chips. Since they stand up to temperature swings better than silicon carbide and mullite, they’re also good for use in furnaces and immersion heaters. Able to withstand wear, these sheets can be used to make cutting and roughing tools.
    These sheets hold up to harsh chemicals, such as acids, but may corrode from nitric acid. They are not as corrosion resistant as silicon carbide.
    Temp.
    2" × 3"
    Thk.
    Thk.
    Tolerance
    Color
    Min.
    Max.,
    ° F
    Fabrication
    Performance
    Dielectric Strength,
    V/mil
    Porosity
    Compressive
    Strength, psi
    Hardness
    Each
    1/4"0" to 0.079"GrayNot Rated1,830FiredExtra High Strength, Fracture Resistant, Thermal Shock Resistant25413%580,000Rockwell C745700N110000000
    1/2"0" to 0.079"GrayNot Rated1,830FiredExtra High Strength, Fracture Resistant, Thermal Shock Resistant25413%580,000Rockwell C745700N12000000
    3/4"0" to 0.079"GrayNot Rated1,830FiredExtra High Strength, Fracture Resistant, Thermal Shock Resistant25413%580,000Rockwell C745700N13000000
    1"0" to 0.079"GrayNot Rated1,830FiredExtra High Strength, Fracture Resistant, Thermal Shock Resistant25413%580,000Rockwell C745700N14000000
     

    Extra Thermal-Shock-Resistant Single-Closed-End SiAlON Ceramic Tubes

    Image of Product. Open End. Front orientation. Ceramic. Extra Thermal-Shock-Resistant Single-Closed-End SiAlON Ceramic Tubes.
    Image of Product. Closed End. Front orientation. Ceramic. Extra Thermal-Shock-Resistant Single-Closed-End SiAlON Ceramic Tubes.

    Open End

    Closed End

    Often used as a protective shield in thermocouples and other conditions with drastic climate changes, these SiAlON ceramic tubes won't deform, expand, or crack when repeatedly exposed to large temperature changes. Submerge the closed end of the tube into harsh settings, such as tanks and furnaces, to protect contents from coming into contact with harmful liquids and gases.
    These tubes are stronger and resist thermal shock better than mullite and alumina, though they don’t remain as stable in ultra-high temperatures. They're not as hard as silicon carbide, so they shouldn't be used when wear resistance is necessary. Because they hold up to chemicals, they’re good for use with molten metal, such as aluminum and zinc alloy. Similar to nonporous alumina, these tubes help seal out gas and liquids.
    Temp.
    6" Lg.
    12" Lg.
    24" Lg.
    OD
    ID
    Wall
    Thk.
    Color
    Min.
    Max.,
    ° F
    Fabrication
    Performance
    Dielectric
    Strength
    Porosity
    Compressive
    Strength, psi
    Hardness
    Each
    Each
    Each
    One Open and One Closed End
    0.492"0.256"0.118"GrayNot Rated1,830FiredExtra-Thermal Shock ResistantNot Rated0%510,000Rockwell 45N 834740N14100000004740N14200000004740N1430000000
    0.629"0.354"0.137"GrayNot Rated1,830FiredExtra-Thermal Shock ResistantNot Rated0%510,000Rockwell 45N 834740N1310000004740N1320000004740N133000000
    0.866"0.472"0.197"GrayNot Rated1,830FiredExtra-Thermal Shock ResistantNot Rated0%510,000Rockwell 45N 834740N1210000004740N1220000004740N123000000
    1.102"0.630"0.236"GrayNot Rated1,830FiredExtra-Thermal Shock ResistantNot Rated0%510,000Rockwell 45N 834740N1110000004740N1120000004740N113000000
     
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