NASA engineers learnt a big lesson from this incident; that big parts of debris may be liberated from the ET and will hit the RCC materials. They made slight modifications into the ET to make sure that significant particles could not quickly occur off it, even so smaller-sized particles could https://www.quora.com/profile/Trevor-Flatcher-2/Advantages-and-Challenges-of-Silicon-Carbide-Specialty-Ceramics-Macrocosm-Materials-Company-Overview-Founded-in-2016