What Are Hard Materials
International Journal of Refractory Metals and Hard Materials. Best Practices in Capital what are hard materials and related matters.. Aims & Scope. The International Journal of Refractory Metals and Hard Materials (IJRMHM) publishes original research articles concerned with all aspects of Etching-assisted femtosecond laser modification of hard materials 98428 | Properties of Materials - Hard or Soft? | Etching-assisted femtosecond laser modification of hard materials. The fundamental of etching-assisted femtosecond laser machining is introducing materials modification by laser to change the etching rate....