Defects, Diffusion and Dopants in Sillimanite Sukumar, Raveena ; Iyngaran, Poobalasuntharam ; Kuganathan, Navaratnarajah ; Chroneos, Alexander Abstract Publication: Minerals Pub Date: September 2020 DOI: 10.3390/min10100857 Bibcode: 2020Mine...10..857S