Silicon Nitride Ceramic Substrate, 50 mm x 50 mm x 0.635 mmProduct Type: Technical ceramic substrate
Research-grade laboratory product
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LABORATORY PROCUREMENT SUPPORT
For model selection, accessory matching, platform compatibility or configuration confirmation, contact our technical sales team.
E-MAIL: inquiry@atomfair.com
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Manufacturer: Atomfair LLC
Brand: ATOMFAIR?
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This technical ceramic substrate is intended for service within its documented temperature, electrical, and mechanical limits. Confirm size tolerance, material grade, surface finish, and required post-processing options before procurement.
- Service temperature limit: Maintain the substrate within the manufacturer's documented use-temperature range to avoid exceeding its stated mechanical and electrical limits.
- Dielectric strength limit: Apply voltages only within the substrate's rated dielectric strength because its insulating function depends on this limit.
- Mechanical loading limit: Avoid applying mechanical stress beyond the documented flexural strength and fracture toughness values to prevent cracking or fracture.
- Configuration verification: Verify size tolerance, thickness requirement, material grade, surface finish, and package format with the manufacturer before ordering.
What is the fracture toughness of this silicon nitride substrate and why is it critical for applications subject to thermal cycling?
The fracture toughness is 6.5 MPa√m, which is explicitly stated in the product specifications. This high fracture toughness resists crack propagation under thermal cycling stresses, ensuring long-term mechanical reliability in demanding ceramic substrate applications.
What is the maximum operating temperature and how does the substrate's thermal conductivity affect heat dissipation at high temperatures?
The usable temperature range is -55°C to 850°C as specified. With thermal conductivity >60 W/(m·K), the substrate efficiently conducts heat away from components even at elevated temperatures, preventing hot spots and maintaining thermal performance across the full range.
What is the dielectric breakdown voltage of this silicon nitride substrate, and is it suitable for high-voltage isolation applications?
The breakdown voltage is >15 kV/mm as stated in the technical specifications. This high dielectric strength combined with thermal conductivity >60 W/(m·K) makes the substrate suitable for high-voltage isolation applications where electrical insulation and heat dissipation are required simultaneously.
This 50 mm x 50 mm x 0.635 mm silicon nitride ceramic substrate delivers a flexural strength above 600 MPa, fracture toughness of 6.5 MPa√m, and thermal conductivity above 60 W/(m·K), enabling reliable mechanical and thermal performance for demanding substrate applications up to 850 °C.
Positive
- High mechanical strength and toughness: Flexural strength >600 MPa and fracture toughness of 6.5 MPa√m provide exceptional resistance to mechanical stress and crack propagation, supporting structural integrity in high-load or vibration-prone laboratory setups.
- Broad operating temperature range: Usable from -55 °C to 850 °C enables deployment in thermal cycling or high-temperature processes without material degradation, simplifying system design for extreme environment applications.
Trade-offs
- Size and thickness verification required: Procurement requires confirmation of exact size tolerance and thickness specification, as the substrate is a selected fixed dimension (50 mm x 50 mm x 0.635 mm) and may not accommodate off-spec designs without custom ordering.
- Processing and surface finish dependencies: Application-specific requirements such as polishing, coating, or metallization must be pre-confirmed with the supplier, as the as-delivered substrate may not include these treatments, impacting integration with subsequent deposition or bonding steps.
Every advanced material, component, equipment, and instrument in our catalog is backed by rigorous testing. We maintain strict internal quality management frameworks and align with CE conformity metrics to deliver transparent, reproducible performance data via our public open-science repository.
To request raw batch performance data, submit formal vendor registration paperwork, or execute a fast-turnaround R&D manufacturing loop, contact us at inquiry@atomfair.com.
Item is dispatched under the Atomfair Shipping & Delivery Framework (Free worldwide shipping on orders over $59 USD excl. heavy equipment). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).
