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Easy to cutting drilling macor grade machinable glass ceramic part sheet block, Contact us immediately to obtain your personalized quote.
Macor grade machinable glass ceramics are a type of microcry stalline glass composed mainly of synthetic mica. They are a kind of ceramic material that can be machined. This material possesses excellent processing properties, vacuum performance, electrical insulation characteristics, as well as excellent properties such as high temperature resistance and chemical corrosion resistance.
Macor grade machinable glass ceramics with their unique machinability and comprehensive outstanding physical and chemical properties, offer unprecedented convenience and possibilities for designers and engineers in the high-tech field. It simplifies the manufacturing process of complex parts while ensuring that the products can operate stably in extreme environments.
Compared with traditional structural ceramics (such as alumina and silicon nitride), the core advantage of machinable ceramics does not lie in achieving the ultimate values of a single performance parameter (such as hardness or strength), but rather in revolutionizing the industry's pain point of "difficulty in processing ceramics" and providing a complete set of outstanding comprehensive performance on this basis.
The core advantages of macor grade machinable glass ceramics:
Processing and Manufacturing Advantages: Overturning the Traditional Manufacturing Process of Ceramics
1. The processing method is simple and flexible:
The processed ceramics can be processed using ordinary carbon steel or hard alloy cutting tools. They can be directly processed on conventional lathes, milling machines, drilling machines and machining centers for operations such as turning, milling, drilling and tapping, which greatly reduces the requirements for equipment and tools.
2. Significantly shorten the research and production cycle:
Since mechanical processing can be directly carried out and expensive special molds do not need to be manufactured, the production preparation time is greatly shortened.
3. Outstanding high-temperature resistance and thermal shock resistance:
Processed ceramics can withstand extreme temperatures ranging from -200°C to 800°C (and even higher), with a small thermal expansion coefficient and good thermal stability.
4. Excellent electrical insulation properties:
It can maintain stable high insulation resistance and low dielectric loss even in high-temperature and high-frequency environments, making it an ideal material for manufacturing high-performance electrical vacuum devices, high-voltage insulators, and circuit supports.
5. Excellent corrosion resistance and vacuum performance:
It has excellent corrosion resistance to most acids, bases, organic solvents, and molten metals. At the same time, its own gas emission rate is extremely low, and it will not pollute the vacuum environment, making it highly suitable for use as an internal component in high-vacuum systems (such as mass spectrometers, accelerators, semiconductor equipment) as an internal component.
6. Reduction of overall costs:
Although the cost of raw materials may be high, when considering the extremely low subsequent processing cost, extremely short development cycle, and high yield rate, the overall cost of its full life cycle is very competitive for many complex parts.
Application fields
Used for manufacturing high-precision non-magnetic structural frames, sensor components, and insulation parts for vacuum equipment in aerospace applications.
The semiconductor industry has extremely strict requirements for the purity, cleanliness, electrical insulation, and vacuum properties of materials. Ceramic processing is almost indispensable in this field.
In semiconductor and FPD (flat panel display) manufacturing processes, processed ceramics are used to manufacture inspection components and micro-processing insulating components.
Due to their extremely low exhaust rate and excellent electrical insulation properties, they are an excellent choice for insulating components in electro-vacuum devices such as electron beam exposure machines, mass spectrometers, and energy spectrometers.
It can be used for ultra-high-voltage insulation components in fields such as motors.
For some thin-walled, complex-shaped and highly precise devices, ceramics can be processed into any desired shape, meeting the demanding design requirements.
Technical specifications
|
指标 Property Content |
标准值 Property Index |
说明 Instruction |
|
密度 Density |
2.6g/cm3 |
|
|
显气孔率 Apparent Porosity |
0.069% |
|
|
吸水率 Water Absorption |
0 |
|
|
硬度 Hardness |
4~5 |
莫氏 Mohs |
|
颜色 Color |
洁白 White |
|
|
热膨胀系数 Coefficient of Thermal Expansion |
72×10-7/°C |
-50°C 至200°C 平均值 -50°C to 200°C average |
|
热导率 Thermal Conductivity |
1.71W/m.k |
25°C |
|
长期使用温度 Long Working Temperature |
800°C |
|
|
弯曲强度 Flexural Strength |
>108MPa |
|
|
压缩强度 Compression Strength |
>508 MPa |
|
|
冲击韧性 Impact Toughness |
>2.56KJ/ m2 |
|
|
弹性模量 Modulus of Elasticity |
65GPa |
|
|
介质损耗 Dielectric Loss |
1~ 4×10-3 |
室温 Room Temperature |
|
介电常数 Dielectric Constant |
6~7 |
" |
|
击穿强度 Puncture Strength |
>40KV/mm |
样品厚度1mm Sample Thickness 1mm |
|
体积电阻 Volume Resistance |
1.08×1016Ω.cm |
25°C |
1.5×1012Ω.cm |
200°C |
|
1.1×109Ω.cm |
500°C |
|
|
常温出气率 Normal Temperature Gas Efficiency |
8.8×10-9 ml/s. cm2 |
真空老炼8小时 Vacuum Burn-in 8 hours |
|
氦透过速率 Helium Through Rate |
1×10-10ml/s |
经500°C 灼烧后,冷却室温 500°C firing, cooling |
5%HC1 |
0.26mg/ cm2 |
95°C,24小时 95°C,24hours |
5%HF |
83mg/ cm2 |
" |
50%Na2CO3 |
0.012 mg/ cm2 |
" |
5%NaOH |
0.85mg/ cm2 |
" |
