1. Materials Science and Technology Center, Institute for Energy and Nuclear Research, São Paulo, São Paulo 05508‐000, Brazil
2. Department of Materials Science and Engineering, University of Alabama at Birmingham, Alabama, 35294
3. Department of Biomaterials and Biomimetics, New York University College of Dentistry, New York, New York 10100
4. Materials Division (AMR/IAE), Brazilian Aerospace Technical Center, São José dos Campos, São Paulo 12228‐904, Brazil