JCPDS (Joint Committee on Powder Diffraction Standards) is a database that provides information on various crystal structures and diffraction patterns of materials.
To access the JCPDS card files, you typically need a subscription or access to a licensed database platform. The Xpert program you mentioned may be one such platform. However, it's important to note that the availability of specific JCPDS card numbers may vary depending on the version and extent of the database you have access to.
To locate the JCPDS card files for the specific card numbers you mentioned (03-065-3419 and 0-065-0395), I suggest the following steps:
1. Ensure that you have the latest and most comprehensive version of the JCPDS database, or the specific database package associated with the Xpert program you are using.
2. Check if the card numbers you are looking for are included in the database. Sometimes certain versions of the database may not have all card numbers, or the numbers you are searching for may have been updated or replaced.
3. If you have access to the JCPDS database through a university or research institution, consider reaching out to your librarian or the database administrator for assistance in locating the specific card files you need.
4. Alternatively, you can try searching for the compound names or relevant keywords associated with the card numbers to find alternative sources or references that may provide the crystallographic data you seek.