Fig. 1. DTA corves of the glass samples with different heating rates: (a) ZrO2, (b) ZS, (c) ZOC, (d) ZST.
Fig. 2. Relationship between ln(T2P/α) and 1/Tp for the glass samples.
Fig. 3. XRD patterns of las glass-ceramics with different Zr source.
Fig. 4. Photographs of glass-ceramic surface: (a) ZrO2, (b) ZS, (c) ZOC, (d) ZST.
Fig. 5. SEM images showing the microstructure of the crystallized glass sample heat 1000℃: (a) ZrO2, (b) ZS, (c) ZOC, (d) ZST.
Fig. 6. 3-Point flexural strength as a Zr source. For each point, six samples were probed.
Table 1 Oxide composition (wt%) of LAS glass-ceramics
Table 2 Heat-Treatment of LAS glass-ceramics
Table 3 The values of activation energy E and Avrami parameter n for crystal growth
Table 4 ICP result of ZrO2 content
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