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Phase Equilibria Diagrams Online

Phase Online offers IP address access 

Unlimited concurrent users for institutions and libraries


Access nearly 27,600 critically-evaluated diagrams from any computer with Phase Online. It’s a convenient, cost effective and reliable method to get the information that you need. Plus, new diagrams are automatically available, making the online system more dynamic. There is no need to purchase updates! Phase Online functionality includes:

  • Search commentaries and diagrams by chemical system, published author’s last name, volume, language, publications year, and figure number.
  • View diagram’s chemical system, figure number, figure notes, references, commentary and footnotes.
  • Manipulate diagrams with zoom in/out, lever rule, curve follow, mirror, Mol% to Wt% or Wt% to Mol% and built-in calculator.

Select your product below to register online, or contact Customer Service at 1-866-721-3322 or (240) 646-7054 to order by phone or email.


One Year User Licenses


Library Subscription
Member: $1,895 | Nonmember: $1,995


Other options


Multiple Users (up to 10 concurrent users)

Member: $1,895 | Nonmember: $1,995


Single User

Member: $1,195 | Nonmember: $1,295

Terms of Use Agreement
Institutions requiring a signed customized version of this Terms of Use Agreement should contact Mark Mecklenborg, director of membership, meetings and technical publications, The American Ceramic Society at mmecklenborg@ceramics.org or 614-794-5829.


Library Subscription

The Phase Online Library Subscription enables librarians to provide access to phase diagrams at all work stations within their institutions by designating ranges of IP addresses. Once the subscription is set up, individuals are able to access Phase Online without entering a username or password. Not the librarian? Download the Phase Online Library Recommendation form and submit it to your library to gain system-wide access to nearly 26,500 critically evaluated phase diagrams for ceramic systems.


These prestigious organizations are enjoying the benefits of Phase Online Library Subscription:

Argonne National Lab
Boise State University
Carnegie Mellon University
Case Western Reserve
Coe College
Columbia University
Cornell University

Corning, Inc.

Dow Corning Software
Elyachar Central Library

Forschungszentrum Juelich
Fraunhofer Institute

Imperial College London

Iowa State University

 Johns Hopkins University
Johnson Matthey Technology UK

McMaster University
Missouri Science & Technology
MIT Libraries
Naval Research Laboratory
Ohio State University
Oak Ridge National Laboratory
Pennsylvania State University
Princeton University
Purdue University


Sasol North America Inc.

Shibaura Institute

SSAB Europe Oy

Staats- und Universitaetsbibliothek
Stanford University

Texas A&M University
Tohoku University

Tokyo Institute of Technology
Toyota Central R&D Labs, Inc.
Tu Bergakademie Frieberg
University of Alberta Canada
University of California Irvine
University of Houston
University of Michigan
University of Oslo Library

University of Tennessee
University of Texas, Austin

System requirements


Information and Software You Must Pre-install to Use This Application

A Subscription to the Phase Online Product – Without a subscription the only accessible part of the site is searching through the diagrams to see what is available. Downloading the commentary and diagrams are disabled for non-subscription based users. If you do not have an account you can purchase a subscription to the service at The American Ceramic Society Website.


Latest Version of Java – The Phase Equilibria Diagram viewer application is written in Java. To use this viewer and the site, your computer needs to be running the latest version of Java. Available for free at Java.com Download Java. You may have to restart your computer for Java to be fully installed.


Phase Equilibria Diagram Viewer – This is a Java application that will enable you to view the Phase Equilibria Diagrams present on the site. Once you click the link for the PED Viewer, you will download a file called ped_viewer.jnlp. Click this file in your browser window or find it in your downloads folder and select it to open it. You will be asked to give Java permission to install the viewer. Select the Yes option and the viewer will be installed using your version of Java. If the PED Viewer was successfully installed, you will see a message stating that it was installed.


Document Viewer – To open commentaries you will need an application for Microsoft Rich Text files and PDF files. For Microsoft Rich Text Files examples are Microsoft Word or Apache OpenOffice Writer. For PDF Files examples are Adobe Reader or Foxit PDF Reader.


Recommended browser – in our experience Google Chrome has been the most reliable and provides the best user experience followed by Firefox.


If further assistance is needed, please contact us at phase3@ceramics.org




PED Application Support, Comments and Suggestions

Click here to submit your support request or comment.


Subscription Questions

Michelle Martin

Ph: 614-794-5874


Mark Mecklenborg

Ph: 614-794-5829

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