Description
Product Overview
The Corning Machinable Ceramic Sheet is engineered for high‑precision applications where dimensional accuracy and material stability are paramount. Fabricated from a proprietary ceramic formulation, this sheet measures exactly 1/4″ (0.250″) in thickness, with a width of 1″ and a length of 6″. The manufacturing process guarantees a tolerance of +0.015″ on the thickness and a zero‑tolerance on length and width when cut on the plus side, ensuring that every piece conforms to exacting engineering specifications.
One of the standout attributes of this sheet is its zero porosity, which eliminates outgassing and prevents contamination in sensitive environments such as vacuum chambers, semiconductor fabrication, and aerospace component testing. The material exhibits a dense, non‑porous microstructure that resists moisture absorption and chemical ingress, extending the service life of the part and maintaining performance over extended thermal cycles.
In addition to its material purity, the sheet is designed for ease of machining. Users can machine the ceramic using standard CNC equipment without the need for post‑firing heat treatment, reducing lead times and operational costs. The machinability is achieved through a balanced composition that provides sufficient hardness for wear resistance while remaining amenable to conventional cutting tools, drills, and grinding wheels.
Technical specifications include an item weight of 3.2 ounces, a best‑sellers rank of #962,005 in the Industrial & Scientific category, and a #77 ranking within the Ceramic Sheets sub‑category on major e‑commerce platforms. The product is manufactured by Corning Inc., a trusted name in advanced materials, and carries the ASIN B00I2UCCJM for easy reference in inventory and ordering systems.
Usage
This ceramic sheet is ideally suited for a broad range of industrial and scientific applications. In the aerospace sector, engineers rely on its tight tolerances and thermal stability to fabricate components such as turbine blades, heat exchangers, and sensor housings that must endure extreme temperature fluctuations without dimensional drift. The zero‑porosity characteristic also makes it an excellent substrate for high‑frequency RF components where dielectric losses must be minimized.
In the electronics manufacturing arena, the sheet serves as a reliable base for printed circuit board (PCB) prototypes, especially for high‑power or high‑frequency designs where conventional FR‑4 substrates may suffer from dielectric breakdown. Its machinable nature allows rapid iteration of design geometries, enabling engineers to test form‑factor variations without the overhead of custom ceramic firing cycles.
Laboratory environments benefit from the sheet’s chemical inertness and low outgassing, making it a preferred material for reaction chambers, spectroscopic windows, and precision optical mounts. The sheet can be cut to custom dimensions, drilled for fluidic channels, and polished to optical quality surfaces, providing a versatile platform for experimental setups that demand both mechanical strength and material purity.
Why Choose Us
Choosing Corning’s Machinable Ceramic Sheet means partnering with a legacy of material science excellence. Corning’s extensive research and development infrastructure ensures that each sheet meets stringent quality controls, from raw material sourcing to final dimensional inspection. The company’s commitment to consistency translates into reduced variability between batches, giving manufacturers confidence that their designs will perform reliably across production runs.
Our quality assurance program includes multiple non‑destructive testing methods, such as ultrasonic scanning and laser profilometry, to verify that each sheet adheres to the specified tolerances and porosity limits. This rigorous approach minimizes the risk of unexpected failures in downstream processes, protecting both time and financial resources.
Beyond product quality, Corning provides comprehensive technical support. Our engineering team is available to assist with material selection, machining parameters, and integration strategies, ensuring that customers can fully leverage the sheet’s capabilities. We also offer flexible ordering options, including bulk quantities and custom cut services, to accommodate the diverse needs of small‑scale prototyping and large‑scale manufacturing.
Key Features
- Zero porosity eliminates outgassing, ensuring clean environments for sensitive applications.
- Precisely machined tolerances (+.015″/-.000″) provide reliable fit for high‑precision components.
- Easily machinable without post‑firing, reducing lead time and production costs.
- High thermal stability maintains dimensional integrity across extreme temperature ranges.
- Dedicated Corning technical support and after‑sales service for seamless integration.
FAQ
What machining tools are recommended for this ceramic sheet?
Standard CNC mills, diamond‑tipped drills, and fine‑grit grinding wheels work well. It is advisable to use coolant to reduce heat buildup and to select cutting speeds that match the material’s hardness to avoid tool wear.
Can the sheet be cut to custom dimensions before machining?
Yes, the sheet can be saw‑cut on the plus side to custom lengths and widths. Our factory offers pre‑cut services, and the tolerances remain within the specified range when cut on the plus side.
Is the material suitable for high‑temperature applications?
Absolutely. The ceramic composition retains its mechanical strength and dimensional stability at temperatures well above 1000°F (540°C), making it ideal for furnace components, heat exchangers, and aerospace thermal management parts.
How does the zero‑porosity feature benefit vacuum or clean‑room environments?
Zero porosity prevents the absorption and release of gases, which could otherwise compromise vacuum levels or contaminate clean‑room processes. This property ensures that the sheet does not introduce unwanted variables into sensitive experiments or manufacturing steps.
What warranty or guarantee does Corning provide for this product?
Corning offers a limited warranty covering material defects and dimensional non‑conformance for a period of 12 months from the date of purchase. Our customer service team will work with you to resolve any issues promptly.
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