If you wish to take a course to receive a certificate, you must take the course under "Online Courses". Do NOT take the course here under "Materials By Topic" as you would not receive a certificate for completing the materials here. The "Materials By Topic" content is intended just for reference purposes.

This course covers the topic of metallography.  One can think of metallography as the preparation of samples (metallic, ceramic and polymeric) for examination using an optical or scanning electron microscope.  Typically, one prepares the samples using cross-sectioning procedures.  We will focus on metallography components, printed circuit boards, and the solder joint connections, rather than classical metallurgical samples.  We cover sample preparation, chemical, ion milling, and electrolytic etching techniques, metallurgical microscope usage, fractography, documentation of microstructures, quantitative metallography, and microhardness testing methods.

Callback before_footer in local_fullscreen component should be migrated to new hook callback for core\hook\output\before_footer_html_generation
  • line 7476 of \lib\moodlelib.php: call to debugging()
  • line 7543 of \lib\moodlelib.php: call to {closure}()
  • line 71 of \lib\classes\hook\output\before_footer_html_generation.php: call to get_plugins_with_function()
  • line 1503 of \lib\outputrenderers.php: call to core\hook\output\before_footer_html_generation->process_legacy_callbacks()
  • line 81 of \course\index.php: call to core_renderer->footer()
Callback before_footer in local_semibot component should be migrated to new hook callback for core\hook\output\before_footer_html_generation
  • line 7476 of \lib\moodlelib.php: call to debugging()
  • line 7543 of \lib\moodlelib.php: call to {closure}()
  • line 71 of \lib\classes\hook\output\before_footer_html_generation.php: call to get_plugins_with_function()
  • line 1503 of \lib\outputrenderers.php: call to core\hook\output\before_footer_html_generation->process_legacy_callbacks()
  • line 81 of \course\index.php: call to core_renderer->footer()
user_preference_allow_ajax_update() is deprecated. Please use the "core_user/repository" module instead.
  • line 41 of \lib\ajax\ajaxlib.php: call to debugging()
  • line 100 of \local\fullscreen\lib.php: call to user_preference_allow_ajax_update()
  • line 74 of \lib\classes\hook\output\before_footer_html_generation.php: call to local_fullscreen_before_footer()
  • line 1503 of \lib\outputrenderers.php: call to core\hook\output\before_footer_html_generation->process_legacy_callbacks()
  • line 81 of \course\index.php: call to core_renderer->footer()