Figure 6
TEM micrographs of P0 powder at (a,b) 7 and (c,d) 14 days of immersion in Tris buffer solution; (b, c, d) display details of crystalline planes. TEM micrographs of P5 glass powder at (e–g) 7 and (h,i) 14 days of immersion in Tris buffer solution. (Figure (i) represents the area highlighted in a black rectangle in Figure h; black arrows indicate crystalline planes).
