AIP Conference Proceedings [AIP Publishing THE 9TH INTERNATIONAL CONFERENCE ON STRUCTURAL ANALYSIS OF ADVANCED MATERIALS - ICSAAM 2019 - Ischia, Italy (12–14 September 2019)] THE 9TH INTERNATIONAL CONFERENCE ON STRUCTURAL ANALYSIS OF ADVANCED MATERIALS - ICSAAM 2019 - Preface: The 9th International Conference on Structural Analysis of Advanced Materials (ICSAAM 2019)