Check this page for information about SciFinder and how to register to use it.
How to use Google Scholar to find full text articles that the library has paid for?
To find journal articles, you need to use the library's online databases. In the databases, you can conduct keyword, author, title, or subject searching.
(Note: Many authors post versions of their articles online. So you may be able to find what you need through a Google or Google Scholar search.)