Machinable Ceramics Components Machinable Ceramics Components

Machinable Nitride

PhotoveelⅡ Series
 

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 Properties

Material Code Characteristics Main Component Purity(wt%) Color Density(g/cm3) Water Absorption(%)
Photoveel Ⅱ High strength - Gray 2.56 0
Photoveel Ⅱ-S Similar to Silicon - Gray 3.50 0
Photoveel Ⅱ-S Black Low reflectance - Black 3.50 0
Photoveel Ⅱ-k70 High thermal conductivity - Gray 2.72 0

Mechanical Properties

Bending Strength(MPa) Young's Modulus(GPa) Vickers Hardness(GPa)
440 157 2.3
320 130 2.3
320 130 2.3
520 200 4

Thermal Properties

Max.Operating Temperature(℃) Coefficient of Thermal Expansion 1/℃ (x10-6 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
1000
(In nonoxidizing atmosphere)
4.7(RT~150℃) 23 400
1000
(In nonoxidizing atmosphere)
1.8(RT~400℃) 70 600

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
1015 1014 1011 107 5.5 10 0.10 35
1015 1011 107 104 9.0 25 0.04 30
1014 1011 107 104 9.0 25 0.04 30
1015 1013 1012 108 6.0 10 0.10 20
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