×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Contact US

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Thin film coatings for silicon nitride / carbide bricks?

Thin film coatings for silicon nitride / carbide bricks?

Thin film coatings for silicon nitride / carbide bricks?

(OP)
Our process has an issue with moisture formation during process cycling that causes moisture injection into the silicon carbide brick of an upper quench tower. OEM seems pretty okay with our awful rebuild frequencies since they get paid for it but I was wondering about the use of coatings before bedding the bricks as an environmental barrier coating.

Has this been done before or are there any applicable standards/studies on it? I’ve seen EBCs more commonly used/studied for SiC turbine components but can’t for the life of me find any literature on quench towers, especially for this service (hot sulfurous gases in a co-current quench).

Also if Cerablak rings a bell for anyone that was one of the companies I’ve been communicating with. Praxair and Ultramet also have some systems but once again they seem specific to turbine units.

RE: Thin film coatings for silicon nitride / carbide bricks?

numerous companies build acid gas quench towers

RE: Thin film coatings for silicon nitride / carbide bricks?

Unifrax coatings?

https://www.unifrax.com/product-category/furnace-l...

Regards, Wil Taylor
o Trust - But Verify!
o For those who believe, no proof is required; for those who cannot believe, no proof is possible. [variation, Stuart Chase]
o Unfortunately, in science what You 'believe' is irrelevant. ["Orion", HBA forum]
o Only fools and charlatans know everything and understand everything." -Anton Chekhov

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members! Already a Member? Login


Resources

Low-Volume Rapid Injection Molding With 3D Printed Molds
Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Download Now
Design for Additive Manufacturing (DfAM)
Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a part’s function at the center of their design considerations. Download Now
Taking Control of Engineering Documents
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. Download Now

Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close