Macor Machinable Ceramic
Main Features of Macor:
0 porosity, 0 outgassing, low thermal conductivity, excellent electrical insulation
Main Features of Shapal Hi-M:
0 porosity, 0 outgassing, high thermal conductivity, superior electrical insulation
Machinable ceramics generally refer to a type of special ceramic that can be directly processed using traditional CNC metal cutting tools. The most common machinable ceramics currently are: boron nitride, glass-ceramic (with Macor produced by Corning in the United States being the most well-known), shapalHi-M (machinable aluminum nitride), and others. ZG has conducted in-depth research in the field of machinable ceramics, especially having outstanding advantages in the materials Macor and shapalHi-M.
Material Properties:
| Macor | Shapal.Hi-M soft | |
| Color | White | Grey |
| Mechanical properties | ||
| Density(g/cm2) | 2.52 | 2.88 |
| Porosity | 0 | 0 |
| Compressive strength | 345(MPa) | 100(kg/mm2) |
| Flexural Strength(MPa) | 94 | 300 |
| Fracture toughness(MPam1/2) | 1.53 | / |
| Hardness(kg/mm2) | Brinell hardness250 | Vickers hardness380 |
| Young's modulus | 66.9(MPa) | 1.8*10000(kg/mm2) |
| Poisson's ratio | 0.29 | 0.31 |
Thermal performance:
| Thermal conductivity@25C | 1.46W/mk | 92 |
| Thermal expansion@25-300C | 90*10-7/C | 4.8*10-6/C |
| Thermal expansion@25-700C | 123*10-7/C | 4.9*10-6C |
| Thermal shock | / | 400C |
| Highest temperatureC | 800(Continuous operation)1000(No-load) | 1000(Air)1900(Non-oxidizing atmosphere) |
