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Nitride Machinable Ceramics Products Title
 
PhotoveelⅡ    PhotoveelⅡ-S
 

characteristic of PhotoveelⅡ
The ceramics are composed by boron nitride and fine ceramics which realize compatibility of high mechanical strength and machinability. It is particularly suitable for small parts with high precision machining.
We provide both low thermal expansion type (PhotoveelⅡ） and another type which is similar thermal expansion to silicon （PhotoveelⅡ-S）

Applications
  • Various Inspection Parts
    		•
  • Insulation parts for micro machining
    		•
    PhotoveelⅡ Products Photo PhotoveelⅡ Products Photo


    Properties of PhotoveelⅡ
     
     

    General Properites
    Material Code Characteristics Main Component Purity(wt%) Color Density(g/cm3) Water Absorption(%)
    Photoveel Ⅱ High strength - Gray 2.56 0
    Photoveel Ⅱ-S High strength - Gray 3.5 0

    Mechanical Properties
    Bending Strength(MPa) Young's Modulus(GPa) Vickers Hardness(GPa)
    440 157 2.3
    320 130 2.3

    Thermal Properties
    Max.Operating Temperature（℃） Coefficient of Thermal Expansion 1/℃　(×10-6） Coefficient of Thermal Conductivity（W/m･K） Thermal Shock Resistance ΔT（℃）
    1000
    (In nonoxidizing atmosphere)     		1.4(RT～400℃) 50 600
    1000
    (In nonoxidizing atmosphere)     		4.7(RT～150℃) 23 400

    Electrical Properties
    Volume Resistivity(Ω・cm) Dielectric Constant Dielectric Loss
    (×10-4）     		Q Factor
    （×104）     		Dielectric Breakdown Voltage
    （KV/mm）
    25℃ 300℃ 500℃ 800℃ 1GHz 1GHz 1GHz
    2.2×1015 - - - 5.5 10 0.1 35
    1015 - - - 9.0 25 0.04 30
     
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