Highly Polished Alumina (Al2O3)Sheets
Inquiry NowProduct Description
Alumina Polished Sheet – High-Purity Al₂O₃ Substrates for Precision Applications in India
M-Kube Enterprise is a trusted supplier of highly polished alumina sheets in India, offering high-purity Al₂O₃ substrates for demanding applications in electronics, optics, material science, and advanced research. With exceptional surface finish, chemical stability, and mechanical strength, our polished alumina substrates are ideal for precision sample preparation, thin-film deposition, and device fabrication.
Whether you’re working in an R&D lab, semiconductor facility, or nanotechnology center, M-Kube delivers quality-assured polished alumina sheets with pan-India support and fast delivery.
Standard & Custom Polished Alumina Substrates for Indian Laboratories & Industries
At M-Kube Enterprise, we provide a wide range of highly polished alumina sheets to meet diverse scientific and industrial requirements. Our sheets are manufactured using 99.7% or 99.8% purity alumina, achieving mirror-like surface finishes critical for high-resolution and high-frequency applications.
Options Available:
- Single-side or double-side polished alumina substrate
- Custom lengths and widths
- Surface roughness: < 0.5 µm Ra
- Edge rounding or chamfering available
Our polished Al₂O₃ sheets are engineered for:
- High thermal stability (up to 1800°C)
- Electrical insulation
- Resistance to acids and alkalis
- Compatibility with vacuum and cleanroom environments
Key Features of M-Kube’s Highly Polished Alumina Sheet
Each high-purity polished alumina sheet is crafted for reliable and repeatable performance in demanding conditions:
- Ultra-flat and scratch-free polished surface
- High dielectric strength and low loss at microwave frequencies
- Excellent mechanical hardness and thermal conductivity
- Resistance to plasma and reactive chemicals
- Long-term dimensional stability under thermal cycling
These properties make them indispensable in advanced research and component fabrication across India.
Applications of Polished Alumina Sheets in Indian Research & Industry
Our polished alumina substrates are widely used in:
- Thin-film deposition (PVD, CVD, ALD)
- Microelectronic circuit prototyping
- Laser and optical component mounting
- High-frequency substrate testing
- Catalyst support and material screening
- MEMS and semiconductor R&D labs
Need other substrates? M-Kube also supplies quartz wafers, sapphire substrates, and silicon wafers tailored to your material needs.
Why Choose M-Kube Enterprise as Your Polished Alumina Sheet Supplier in India?
M-Kube Enterprise is a preferred choice for polished alumina substrates in India due to:
- High-purity Al₂O₃ (99.7% – 99.8%) for critical precision applications
- Excellent polish quality on single or both sides
- Strong customization and quantity fulfillment capabilities
- Consistent surface finish and batch-to-batch quality control
- Technical consultation and nationwide delivery support
We proudly support India’s research labs, nanotech centers, and electronics industries with superior ceramic substrate solutions.
Order High-Purity Polished Alumina Substrates from M-Kube Enterprise India
Get reliable performance and precision with M-Kube’s highly polished alumina sheets. Perfect for thin-film technologies, electronics prototyping, and high-temperature research environments.
✅ Standard and custom sizes available
✅ Double-sided polishing and ultra-flat finish
✅ Trusted by India’s leading research labs and electronics manufacturers
📞 Call us at +91-9898892994
📧 Email us at marketing@mkubeenterprise.co.in
to get a quote or speak to our ceramic substrate specialists today!
Product FAQ's
Is there a difference between a Polished Alumina Substrate Al2O3 and a Highly Polished Alumina Sheet?
Both terms often refer to the same product. “Polished Alumina Substrate Al2O3” emphasizes its use as a base layer (substrate), while “Highly Polished Alumina Sheet” highlights its form and surface finish.
What purity levels are available for High-Purity Polished Alumina Sheets?
High-Purity Polished Alumina Sheets are typically available in purities of 99.5% and above, ensuring excellent material properties and minimal impurities.
Are Polished Alumina Substrates available in custom sizes?
Yes, Polished Alumina Substrates can often be manufactured in custom finishes, thicknesses and dimensions to meet specific project requirements.
How is the surface finish measured on a Highly Polished Alumina Sheet?
The surface finish of a Highly Polished Alumina Sheet is typically measured using surface roughness parameters (Ra), ensuring precise smoothness specifications.
What colors are available for Polished Alumina Substrate Al2O3?
Polished Alumina Substrate Al2O3 is usually white due to the natural color of high-purity alumina.
How do I store a High-Purity Polished Alumina Sheet?
Store your High-Purity Polished Alumina Sheet in a clean, dry environment, away from potential contaminants or mechanical damage to maintain its polished surface.









