We introduce machining examples of machinable ceramics
Machinable ceramics can be cut and offer significantly better machinability than conventional ceramics, making them suitable for precision and micro machining.
Also suitable for small-lot prototyping.
Various materials with different properties are available from manufacturers. Materials are selected and procured based on customer requirements.
Various Machinable Ceramics
Electrical Insulation · Heat Resistance · Machinability
Machinable Ceramics Machining Examples
| Item | Component | Content Ratio (%) | Vickers Hardness(HV) (GPa) |
Flexural Strength (MPa) | Maximum Service Temperature Oxidizing Environment (℃) |
Maximum Service Temperature Vacuum (℃) |
Coefficient of Thermal Expansion (×10-⁶/℃) |
Thermal Conductivity (W/(m·K)) |
|---|---|---|---|---|---|---|---|---|
| Material Name | ||||||||
| Macelite SP | Fluorine-based Materials Mica |
- | 2.2 | 110 | 1,000 | 1,200 | 9.3 RT-400℃ |
1.6 |
| Photoveel | Fluorine-based Materials Mica ZrO₂ |
- | 2.2 | 150 | 1,000 | 1,000 | 7.8 RT-800℃ |
1.5 |
| Macor | Fluorine-based Materials Mica Borosilicate Glass |
55 - 45 |
2.2 | >94 | 1,000 | 800 | 9.3 RT-300℃ |
1.4 |
| N-1 | BN | >99 | Shore Hardness12(HS) | 30 | 950 | 2,000 | -1.4 RT→1000℃ |
63 |
| BA-2000 | AlN BN |
80 20 |
Shore Hardness40(HS) | 120 | 950 | 1,950 | 5.4 | 95 |
| SBN30 | Si₃N₄ BN |
30 70 |
Shore Hardness48(HS) | 140 | 950 | 1,500 | 2.0 | 33 |
| SBN50 | Si₃N₄ | 50 50 |
Shore Hardness69(HS) | 270 | 950 | 1,500 | 2.6 | 47 |
| Shapal Hi M-Soft |
AlN BN |
- | 3.8 | 300 | 1,000 | 1,900 | 4.4 | 90 |
Applications Utilizing Material Properties
| Item | Features | Applications |
|---|---|---|
| Processability | · Excellent machinability for precision and micro machining |
· Jigs and Fixtures for High-Temperature Use · Fixtures with matched thermal expansion to silicon · Components for rapid heating and cooling processes · Electrical insulation components for high-temperature environments |
|
Hardness Strength |
· Lower hardness and strength compared to general ceramics | |
| Maximum Service Temperature | · BN, Si3N4, and AlN-based materials offer higher performance | |
| Thermal Expansion |
· Wide range from negative to high thermal expansion · BA-2000 and M-Soft are close to silicon values |
|
| Thermal Shock Resistance | · BN, Si3N4, and AlN-based materials show high performance | |
| Dielectric Strength | · Some materials exhibit high values depending on composition |
*Generally higher material cost, often used for small parts
Machinable Sizes
| Item | Sizes (mm) | Item | Sizes (mm) |
|---|---|---|---|
| Plate Dimensions | □300 ×ｔ50 (Depends on material) | Hole Diameter | Φ0.05– |
| Rod Dimensions | Φ50 × 300 (Depends on material) | Hole Depth | –300 |
| Grooves | Width 0.05– | Number of Holes | –10,000 |
| Steps (Protrusions / Recesses) | –50 | Threads | M1.2– |
