Macerite series
Our original machinable ceramics (ceramics with excellent machining characteristics). The Macerite lineup includes ET, SP, HSP mica based products, as well as Macerite PN, a boron nitride based formulation. The excellent machining characteristics of these products allows creation of complex shapes and micron-order accuracy.
Macerite-ET
Material with excellent thermal shock strength and low thermal expansion.
Excellent light reflectance with high degree of whiteness, Macerite-ET has been widely used in reflectors in various fields including YAG laser oscillators.
Macerite-SP
Inexpensive, general-grade material in the Macerite series. Suitable for large parts.
Macerite-HSP
HIP processed Macerite-SP. An optimum material for fine machining because of its pore-less characteristics.
Macerite-PN
High strength material suitable for precision machining. The low coefficient of thermal expansion approaches that of silicon.
Material characteristics
| Name | Macerite-ET | Macerite-SP | Macerite-HSP | Macerite-PN | |
|---|---|---|---|---|---|
| Composition | Fluorphlogopite (KMg3AlSi3O10F2) | BN+α | |||
| Color | white | ivory | ivory | grey | |
| Bulk Density | g/cm3 | 2.46 | 2.50 | 2.67 | 3.10 |
| Water Adsorption Ratio | % | 0 | 0 | 0 | 0 |
| Flexural Strength | MPa | 140 | 110 | 160 | 290 |
| Compressive Strength | MPa | - | 430 | 440 | - |
| Young's Modulus | GPa | 61 | 64 | 65 | 120 |
| Hardness | GPa | 2.6 | 2.2 | 2.2 | 1.7 |
| Electrical Resistivity [RT] | Ω・cm | >1014 | >1015 | >1015 | >1014 |
| Dielectric Constant [RT] | 6 | 6 | 6.5 | 7 | |
| Dielectric Strength | kV/mm | 10 | 10 | 10 | 10 |
| Thermal Expansion Coefficient [RT-200℃] | X10-6/℃ | 5.8 | 9.2 | 9.8 | 4.2 |
| Thermal Conductivity | W/(m・K) | 1.4 | 1.6 | 1.6 | - |
| Thermal Shock Resistance ⊿T | ℃ | 350 | 150 | 175 | 650 |
* The data indicated herein is representative values and not guaranteed values.
