Product type: Ceramic Plate. Application: Aerospace, Architectural, Electronics. Model: HKK46.
Overview
Macor Machinable Glass Ceramic Disc Wafer Substrate: a glass wafer. Listed geometry: size Customized. Optical / electrical data: sheet resistance 25-100δT(C°). Temperature 800. Typical applications: Aerospace, Architectural and Electronics. Dimensions, material grade, coating and finish can be quoted to your drawing; the values above are the listed starting point.
Specifications
| Type | Ceramic Plate |
|---|---|
| Size | Customized |
| Application | Aerospace, Architectural, Electronics |
| Model NO. | HKK46 |
| Thermal Expansion Coefficient | High Expansion |
| Transparency | Opaque |
| Density | 2.60g/cm3 |
| Temperature | 800 |
| Keyword1 | Machinable Glass Ceramic Disc |
| Keyword2 | Machinable Glass Ceramic Wafer |
| Water Absorption | 0 |
| Young's Modulus | 65gpa |
| Thermal Conductivity | 1.7W/(M·K) |
| Dielectric Strength | 40kv/mm |
| Dielectric Constant | 6.02 |
| Thermal Shock Resistance | 25-100δT(C°) |
| Color | White |
| Flexural Strength | 100MPa |
| Volume Resistivity | 10^16 |
| Thermal Expansion | High Expansion |
| Chemical Resistance | Acid and Alkali Resistant |
| ISO 9001 | 2015 and IATF 16949 |
| ISO9001 | 2015 Quality Management System |
| Period of validity | from2024.10.17 to 2027.10.25 |
| Date | MAY .08.2026 |
| Supplier | Lianyungang Highborn Technology Co., Ltd. |
Technical data
| Property Content | Property Index | Instruction |
| Density | 2.6g/cm3 | |
| Apparent Porosity | 0.069% | |
| Water Absorption | 0 | |
| Hardness | 4~5 | Mohs |
| Color | White | |
| Coefficient of Thermal Expansion | 72×10-7/°C | -50°C to 200°C average |
| Thermal Conductivity | 1.71W/m.k | 25°C |
| Long Working Temperature | 800°C | |
| Flexural Strength | >108MPa | |
| Compression Strength | >508MPa | |
| Impact Toughness | >2.56KJ/ m2 | |
| Modulus of Elasticity | 65GPa | Room Temperature |
| Dielectric Loss | 1~4×10-3 | |
| Dielectric Constant | 6~7 | |
| Puncture Strength | >40KV/mm | Sample Thickness 1mm |
| Volume Resistance | 1.08×1016Ω.cm | 25°C |
| 1.5×1012Ω.cm | 200°C | |
| 1.1×109Ω.cm | 500°C | |
| Normal Temperature Gas Efficiency | 8.8×10-9ml/s.cm2 | Vacuum Burn-in 8 hours |
| 1×10-10ml/s | 500°C firing, cooling | |
| 5%HC1 | 0.26mg/ cm2 | 95°C,24hours |
| 5%HF | 83mg/ cm2 | |
| 50%Na2CO3 | 0.012 mg/ cm2 | |
| 5%NaOH | 0.85mg/ cm2 |
What to specify when you request a quote
- Diameter and flat / notch — listed as “Customized”; state diameter, flat or notch and their tolerances.
- Thickness and TTV — give thickness, its tolerance and total thickness variation.
- Polish and roughness — specify single- or double-side polish and roughness.
- Flatness, bow and warp — quote flatness, bow and warp limits.
- Material grade — name the grade (JGS1/JGS2, Borofloat 33, alkali-free, sapphire orientation).
Engineering guides for this part
For material grades and coating options, see BOROFLOAT 33 & Alkali-Free Glass Wafers: Material Guide. How parts like this are machined and finished is covered in Precision Glass Hole Drilling & Micromachining for MEMS Wafers. For an application example, read Alkali-Free Glass Wafers for Appliance Display Substrates. Before sending a drawing, check Design Guide for CNC Machined Precision Glass Components. A related standard product is Alkali-Free Glass Wafers.
