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06A04
HaoRui
02A17
Machinable glass ceramics
Machinable glass-ceramic is a new class of ceramic material which is capable of being machined to precise tolerances using conventional metal-working tools and equipment. There are a number of useful machining techniques which are pertinent to this material. Details of the individual operations; turning, milling, drilling, tapping, etc. are outlined.
Properties Of Machinable Glass Ceramic
| Item | Test Conditions | Data |
| Density | Archimedes Principle | 2.48 g/cm3 |
| Apparent Porosity | - | 0.069% |
| Water Absorption | - | 0 |
| Hardness | Mohs | 4~5 |
| Color | - | White |
| Coefficient of Thermal Expansion | -50°C∽200°C average value | 72×10-7/°C |
| Thermal Conductivity | 25°C | 1.46 W/(mꞏK) |
| Long-term Use Temperature | - | 800 °C |
| Bending Strength | - | >91 MPa |
| Compression Strength | - | >508 MPa |
| Impact Toughness | - | >2.56 KJ/m2 |
| Elastic Modulus | - | 65 GPa |
| Dielectric Loss | Room temperature | 1~4×10-3 |
| Dielectric Constant | Room temperature | 6~7 |
| Breakdown Strength | Sample Thickness：1mm | >40 KV/mm |
| Electrical Resistivity | 25°C | 1.08×1016 Ω.cm |
| 200°C | 1.5×1012 Ω.cm | |
| 500°C | 1.1×109 Ω.cm | |
| Outgassing Rate at Room Temperature | Vacuum aging for 8 hours | 8.8×10-9 ml/s. cm2 |
| Helium Transmission Rate | After burning at 500°C, Cool to room temperature | 1×10-10 ml/s |
| 5%HCl | 95°C, 24 hour | 0.26 mg/cm2 |
| 5%HF | " | 83 mg/cm2 |
| 50%Na2CO3 | " | 0.012 mg/cm2 |
| 5%NaOH | " | 0.85 mg/cm2 |
| This data is the result of laboratory testing. Customers need to judge whether it can be used according to the specific environment. | ||
MACOR® Machinable Glass Ceramic
Macor is a machinable glass ceramic material that possesses outstanding engineering properties. Unlike other ceramics, Macor can be machined with ordinary metalworking tools. This problem solving material combines the performance of a technical ceramic with the versatility of a high performance plastic. Macor has no porosity and when properly baked out, will not outgas. It is strong and rigid and, unlike high temperature plastics, will not creep or deform. Macor machinable glass ceramic is also radiation resistant.
Properties of MACOR® Glass Ceramic
MACOR® has a continuous use temperature of 800°C and a peak temperature of 1000°C. It offers excellent high-temperature electrical insulation properties with an electrical breakdown strength of 40KV/A per millimeter.
Industry Applications MACOR® builds value in every field :
• Constant and ultra-high vacuum environments
• Laser technology
• Semiconductor / Electronic
• Aerospace / Space
• Medical/ Laboratory equipment
• Fixtures
• Chemical
• Automobile
• Military
• Nuclear
Machinable glass ceramics
Machinable glass-ceramic is a new class of ceramic material which is capable of being machined to precise tolerances using conventional metal-working tools and equipment. There are a number of useful machining techniques which are pertinent to this material. Details of the individual operations; turning, milling, drilling, tapping, etc. are outlined.
Properties Of Machinable Glass Ceramic
| Item | Test Conditions | Data |
| Density | Archimedes Principle | 2.48 g/cm3 |
| Apparent Porosity | - | 0.069% |
| Water Absorption | - | 0 |
| Hardness | Mohs | 4~5 |
| Color | - | White |
| Coefficient of Thermal Expansion | -50°C∽200°C average value | 72×10-7/°C |
| Thermal Conductivity | 25°C | 1.46 W/(mꞏK) |
| Long-term Use Temperature | - | 800 °C |
| Bending Strength | - | >91 MPa |
| Compression Strength | - | >508 MPa |
| Impact Toughness | - | >2.56 KJ/m2 |
| Elastic Modulus | - | 65 GPa |
| Dielectric Loss | Room temperature | 1~4×10-3 |
| Dielectric Constant | Room temperature | 6~7 |
| Breakdown Strength | Sample Thickness：1mm | >40 KV/mm |
| Electrical Resistivity | 25°C | 1.08×1016 Ω.cm |
| 200°C | 1.5×1012 Ω.cm | |
| 500°C | 1.1×109 Ω.cm | |
| Outgassing Rate at Room Temperature | Vacuum aging for 8 hours | 8.8×10-9 ml/s. cm2 |
| Helium Transmission Rate | After burning at 500°C, Cool to room temperature | 1×10-10 ml/s |
| 5%HCl | 95°C, 24 hour | 0.26 mg/cm2 |
| 5%HF | " | 83 mg/cm2 |
| 50%Na2CO3 | " | 0.012 mg/cm2 |
| 5%NaOH | " | 0.85 mg/cm2 |
| This data is the result of laboratory testing. Customers need to judge whether it can be used according to the specific environment. | ||
MACOR® Machinable Glass Ceramic
Macor is a machinable glass ceramic material that possesses outstanding engineering properties. Unlike other ceramics, Macor can be machined with ordinary metalworking tools. This problem solving material combines the performance of a technical ceramic with the versatility of a high performance plastic. Macor has no porosity and when properly baked out, will not outgas. It is strong and rigid and, unlike high temperature plastics, will not creep or deform. Macor machinable glass ceramic is also radiation resistant.
Properties of MACOR® Glass Ceramic
MACOR® has a continuous use temperature of 800°C and a peak temperature of 1000°C. It offers excellent high-temperature electrical insulation properties with an electrical breakdown strength of 40KV/A per millimeter.
Industry Applications MACOR® builds value in every field :
• Constant and ultra-high vacuum environments
• Laser technology
• Semiconductor / Electronic
• Aerospace / Space
• Medical/ Laboratory equipment
• Fixtures
• Chemical
• Automobile
• Military
• Nuclear
