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Stock List Crystals & Substrates

Stock List Targets

SurfaceNet GmbH Germany (Crystals, Substrates, Services)

Ceramic materials

 

Production program

 

Fluoridic ceramics

CaF2, BaF2, MgF2, NaF

Sulfidic ceramics

Al2S3, CaS, CeS, Ce2S3, LaS, SrS, ZnS (also doped)

Selenide ceramic

ZnSe

Oxide ceramics

Al2O3, BaZrO3, cordierite, rare earth oxides,
MgAl2O4, Y2O3, SnO2, ZrO2, stabilized with CaO, MgO, Y2O3

Nitride ceramics

AlN, BN, Si3N4, Si3Al3O3N5

Applications

    containers for special melts
    protective tubes and caps for temperature measurement
    optical and electrical function parts
    getters
    nuclear-physical studies
    thermal insulation
    functional parts for sensors

Typical products

    tubes and crucibles
    cylinders, blocks and other formed sintered parts
    sputter targets
    pellets for electron-beam and thermal evaporation

AlN

    very high thermal conductivity
    exceptional stability to many molten metals
    thermal shock resistant
    thermocouple protection tubes for aluminum melts

Al2O3

    pure dense and fine alumina
    for wear resistant and insulating parts and laboratory ware
    (thin wall crucibles for thermal analysis)

BN (hexagonal, turbostratic )

    very low wetability of many melts
    high resistance to thermal shock
    good dielectric properties

BaZrO3

    thermocouple protection tubes for aluminum melts
    especially suitable for YBCO
    high application temperature

CaO

    very high thermodynamically stability
    for Pt-, Pd-and many other melts
    sensitive to air and humidity

CaF2

    good alkali resistance
    resistant vs. melts with high oxygen affinity
    pure F` - ion conductor

Si3Al3O3N5

    high creep strength
    very good thermal shock resistance
    chemical resistant vs. many molten metals

Y2O3

    maximum use temperature 2200 C in oxidizing and reduzing atmosphere
    high specific resistance
    high strenth at elevated temperatures
    low corrosion in titanium melts

t-ZrO2 (Y2O3 - part. stab.)

    very high abrasion resistance
    excellent fracture toughness
    very high bending strength and hardness

c-ZrO2 (CaO - full stab.)

    for operatings in oxidizing and reduzing atmosphere up to 2400 C
    solid electrolyte material
    low thermal conductivity

c-ZrO2 (Y2O3 - full stab.)

    for operatings in oxidizing and reduzing atmosphere up to 2300 C
    electrical conducting at high temperatures
    suitable for YBCO - superconducting applications

     

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